Announcement

**imported_g_dragon** · 27-09-2004, 06:53 AM

1. Proxy ARP
2. Câu 2 thì tùm lum quá nhưng tóm lại là. Nếu 2 bên đều có physical connection OK, encapsulation PPP, Nếu xài CHAP authentication thì, password 2 bên phải giống nhau, nếu chỉ dùng câu lệnh user name và password mà không khai báo gì thêm thì hostname của router này phải là username của router kia. Nếu thỏa mãn được các điều kiện trên thì B, E sẽ đúng, còn nếu là cisco router thì câu C sẽ đúng
3 B,E
4 A,C,F
5 C
6 A,B,D SAO LẠI YOU IS NHỈ
7 C,F

**thewall** · 27-09-2004, 09:07 AM

RE: Mong được giải đáp!

Xin cám ơn huynh rất nhiều! "Học thầy không tày học bạn" :D :)

**nqminh79** · 27-09-2004, 09:06 PM

Some CCNA questions for review.

Đây là một số câu hỏi ôn tập mong được trao đổi cùng các bạn.Thanks.

1. Which of the following is a correct statement?

a. Frame filtering assigns a VLAN ID to each frame.

b. Frame tagging is more scalable than frame filtering.

c. The frame tag is placed in the Layer 3 header.

d. The VLAN ID is added to the frame for transport across horizontal cabling links.
2.Which device, typically found in digital PBX's, performs Layer 2 and Layer 3 protocol functions?

a. NT1

b. NT2

c. TE1

d.TE2

3. When a router is using hold down timers, which update about a failed link is rejected?

a. An update from a different router with a better metric

b.An update from a different router with a poorer metric

c. An update from the same router with a better metric

d.An update from the same router with a poorer metric

4. At which layers of the OSI model do VLANs operate?

a. Application and Presentation

b. Data Link and Network

c.Physical and Transport

d. Physical and Data Link

5.What is another term for the "last-mile"?

a. CPE

b. Demarcation

c. Local Loop

d.Toll Network

6.All of the following statements about VLANs are true EXCEPT:

a. They are logical groupings of devices.

b. Users can be grouped by function.

c.VLANs are configured by software.

d. VLANs are standardized

7.Which type of network would typically use a static route for external traffic?

a. Fully meshed network

b. Multihomed network

c. Network with frequent topology changes

d. Stub network

8. What is a major advantage of circuit-switched networks over packet-switched networks?

a. It allows network devices to share a single point-to-point link.

b. It involves transmission of messages from node to node through a network.

c. It offers more flexibility and uses network bandwidth more efficiently.

d. It offers users dedicated bandwidth that cannot be infringed upon by other users

9.What are the two basic functions used by a router to relay packets?

a. Filtering and switching

b. Path determination and filtering

c. Path determination and switching

d.Traffic analysis and filtering

10. Which of the following is true regarding latency?

a.CSMA/CD requires no latency.

b. It is also called asymmetry.

c. It is based entirely on distance.

d. Networking devices add to latency.

11.Which statements describe the use of Link State Advertisements (LSA)? (Choose two.)

a. LSAs are generated when changes in the network occur.

b. Link state advertisements are refreshed every 60 minutes.

c. The router copies the information received from each LSA packet into the routing table.

d. Routers exchange LSAs to build and maintain topology databases.

e. Forwarding LSAs can increase the occurrence of routing loops.

12.What are the effects of LAN segmentation using a switch? (Choose three.)

a.dedicated bandwidth between source and destinations

b. enlarged collision domains

c. decreased broadcast domains

d. increased number of collision domains

e. increased latency in the network

13.Which functions are carried out by switches and bridges when building the CAM tables? (Choose three.)

a. builds the table using unknown source MAC addresses from received frames

b. builds the table using unknown destination MAC addresses from received frames

c. time stamps the entries for each address

d. time stamps the BPDU of each frame received

e. maps switch port numbers with the associated MAC address

f. maps switch port numbers with the associated network address

14.Which of the following do switches send at regular intervals to eliminate switching loops?

a. bi-directional protocol data units

b. binary protocol data units

c. bridge protocol data units

d. buffered protocol data units

15.Which of the following are functions of a WAN? (Choose three.)

a. permit real-time communication between users

b. allow users access to high bandwidth

c. provide full-time local service

d. provide e-mail and e-commerce services

e. connect physically adjacent devices

f. provide access to computers in other locations

16.What is the purpose of the IOS enable secret command?

a. to set password protection on incoming Telnet sessions

b. to set password protection on the console terminal

c. to allow a user access to User mode

d. to allow a user to enter a password that will be encrypted

17.What is the function of the first phase of PPP negotiation?

a. link termination

b. authentication of communicating peers

c. link establishment and configuration

d. network layer protocol configuration

18.Diagram:
Sw1---------Sw2---------Sw3---------Sw4
server client transparent server
vtp domain: cisco
trunking protocol: isl
The switches in the graphic are configured for VTP as shown. Select the statements that correctly describe the operation of these switches. (Choose two.)

a. A new VLAN can be added to Switch1 and that information will be added only to Switch2.

b. An existing VLAN can be deleted from Switch2 and that VLAN will be deleted from Switch1 and Switch4.

c. A new VLAN can be added to Switch4 and that information will be added to Switch1, Switch2, and Switch3.

d. A new VLAN can be added to Switch1 and that information will be added to Switch2 and Switch4.

e. A new VLAN can be added to Switch3 and that information will be added to Switch1, Switch2, and Switch4.

f. An existing VLAN can be deleted from Switch4 and that VLAN will be deleted from Switch1 and Switch2.

19.Which of the following EIGRP functions is the responsibility of the IP protocol-dependent module (PDM)? (Choose three.)

a. the calculation of successor and feasible successor routes for IP and IPX traffic

b. the notification of DUAL when IP routing information is received

c. the communication of information about IP routes with neighbor routers

d. the maintenance of the IP routing table

e. the exchange of hello packets with other IP-enabled routers

f. the insertion of lowest cost paths into the routing table

20.Which of the following messages are sent from a DHCP server to a client during a successful configuration process? (Choose two.)

a. DHCPDISCOVER

b. DHCPOFFER

c. DHCPREQUEST

d. DHCPACK

21.An administrator has an older 1900 switch located on the edge of the network. What can the network administrator do to ensure that it does not become the root bridge of the spanning-tree network?

a. decrease the BPDU hello timer update on the 1900

b. assign the highest IP address to the switch that should be the root

c. assign the lowest IP address to new root bridge

d. assign the lowest priority to the switch that should be the root

e. assign the highest priority to the new root bridge

f. decrease the BID on the 1900 switch

22.What reduces the problems of routing loops due to incorrect updates?

a. count to infinity

b. distance vector timers

c. event-triggered updates

d. split horizon

23.Which of the following are benefits of creating a subnetwork structure in an IP network? (Choose three.)

a. permits network address duplication

b. allows for address flexibility

c. prevents address replication

d. provides broadcast containment

e. adds low-level security

f. allows for more network hosts available

24.Which of the following LAN hosts are most likely to require full rather than half duplex ethernet connections? (Select two.)

A. File server

B. Workstation

C. Proxy server

D. Web server
25.Which of the following networking devices is paired with the layer of the OSI model that would best describe its core functionality? (Select all that apply.)

A. Repeater, Layer 1.

B. Bridge, Layer 2.

C. Switch, Layer 4.

D. Router, Layer 3.

E. Gateway, Layer 3.
26.Which of the following are configuration modes that are available once Privileged EXEC mode is entered when logged into the IOS CLI via the console cable? (Select all that apply.)

A. Global configuration mode

B. Auxiliary configuration mode

C. Router configuration mode

D. UTP configuration mode

E. Line configuration mode

F. Interface configuration mode

**thewall** · 27-09-2004, 11:32 PM

RE: Mong được giải đáp!

Mong được giải thích rỏ hơn câu 3
Câu 4 thì mình nghĩ câu E cũng đâu có sai! Thế câu nào mới chính xác

**meoluoidethuong** · 30-09-2004, 02:24 AM

RE: Mời trao đổi một số câu hỏi ôn tập CCNA (part I)

1.Which statement describes the routing protocol OSPF (choose 3)

A.It supports VLSM
B.It is used to between Autonomous systems
C.It confines network instability to one area of network
D.It increases routing overhead over the network
E.It allows extensive control of the routing update
F.it is simpler to configure than RIPv2

2. Error detection schemes use which field of frame to detect error?

A.MTU
B.MAC
C.FCS
D.PDU
E.ERR
F. Flag

3. Which of the following are characteristics of microsegmentation? (Choose two)

A. Dedicated paths between sending and receiving host are established
B. the number of collision domains is decreased
C. Broadcast domain are enlarged
D. Multiple subnetwork broadcast addresses are created
E. Multiple ARP tables are required on the connected hosts
F. Bandwidth is dedicated to connect hosts

4. Which statement describes the rule of split horizon?

A. Only routers can split boundaries (horizons) between concentric networks.
B. All distance vector protocols require fall back routers that may cause momentary loops as the topology changes.
C. Networks can only remain fully converged if all information about routers is sent out all active interfaces.
D. Information about a route should not be sent back in the direction from which the original update come.
E. Each AS must keep routing tables converged to prevent dead routes from being advertised across the AS boundary.

5. A network host is configured as follows: Host IP address: 192.168.16.183 Subnet mask:255.255.255.224 Default gateway: 192.168.16.190. Which of the following statements describe the network to which this host is attached? (Choose three)

A. The default gateway is configured on a different subnet form this host.
B. The host is a member of the fifth usable subnet of the 192.168.16.0 network.
C. The sub network address for this host is 192.168.16.160/28.
D. The address of the next higher subnet is 192.168.16.192.
E. The address of the router interface that is attached to this sub network is 192.168.16.190.
F. There are 60 usable host addresses on this subnet.

6. You have configured a new Frame Relay link on a router that is using IGRP.
Which command would you use to set the IGRP metric for the speed of this link?

A. Contoso Router(config)# IGRP metric 256K
B. Contoso Router(config)# bandwidth 256
C. Contoso Router(config-if)# metric 256K
D. Contoso Router(config-if)# bandwidth 256

7. What is a global command?

A. A command that is available in every release of IOS, regardless of the version or deployment status.
B. A command that can be entered in any configuration mode.
C. A command that is universal in application and supports all protocols.
D. A command that is implemented in all foreign and domestic IOS version.
E. A command that is set once and affects the entire router.

8. An administrator has decided to use the private address 172.20.0.0 for the internal network. If the maximum number of hosts allowed on a subnet is 62, which of the following is true regarding the addressing scheme?

A. 172.20.62.255 is a host address.
B. Ten bits were borrowed for subnets.
C. 255.255.255.252 is the subnet mask.
D. 172.20.255.64 is a subnet address.
E. Seven host bits must be used to meet the addressing scheme requirement.

9. What feature of a networks switch allows an administrative to create separate broadcast domains?

A. Store-and-forward switching
B. Micro segmentation
C. Transparent bridging
D. Fragment-free switching
E. Virtual LANs
F. Cut-through switching

10. Which of the following options lists the steps in PPP session establishment in the correct order?

A. Optional authentication phase, link establishment phase, network layer protocol phase.
B. Network layer protocol phase, link establishment phase, optional authentication phase.
C. Network layer protocol phase, optional authentication phase, link establishment phase.
D. Link establishment phase, network layer protocol phase, optional authentication phase.
E. Link establishment phase, optional authentication phase, network layer protocol phase.
F. Optional authentication phase, network layer protocol phase, link establishment phase.

11. Which Frame Relay feature is responsible for transmitting keep alive to ensure that the PVC does not shut down because of inactivity?

A. DLCI
B. BECN
C. FECN
D. LMI
E. CIR
F. DE

12. Which characteristics are representative of a link-state routing protocol? (Choose three)

A. Provide common view of entire topology
B. Exchange routing tables with neighbors.
C. Calculates shortest path.
D. Utilizes event triggered updates.
E. Utilizes frequent periodic updates.

13. Which of the following contribute to congestion on an Ethernet network. (Choose two)

A. Use of full duplex mode.
B. Creation of new collision domain.
C. Creation of new broadcast domain.
D. Addition of hub to the network.
E. Use of switches in the network.
F. Amount of ARP or IPX SAP traffic.

14. Exhibit:

Which of the following is the minimum configuration commands required to bring up the ISDN link shown in graphic. Note : SPIDs are not required for this switch. (Choose three)

A. Router(Config-if)# encapsulation PPP
B. Router(Config-if)# isdn switch-type type
C. Router(Config-if)# dialer-list, protocol ip permit
D. Router(Config-if)# dialer map ip address name name connection number.
E. Router(Config-if)# ip address subnet mask
F. Router(Config-if)# dialer group 1

15. The command frame - relay map ip 10.121.16.8.102 broadcast was entered on the router. Which of the following statement is true concerning this command?

A. This command should be executed from the global configuration mode.
B. The IP address 10.121.16.8 is the local router part used to forward data
C. 102 is the remote DLCI that will receive the information.
D. Command is required for all frame relay configuration.
E. The broadcast option allows packet, such as RIP update, to be forwarded across the PVC.
command fail 10.121.16.8.102
16. Exhibit:

MTU 1500 bytes, Bw 10000 Kbit, Dly 1000 Usec.reliability 128/255, txload 1/255, rxload 1/255Encapsulation Arpa, loop back not seCKeepalive set (10 Sec)ARP type: Arpa, Arp Timeout 04:00:00Last Input 21:24:36, output 00:00:08, output hang never last clearing of "show interface" countees never Queuing strategy: FIFO Output queue 0/40, 0 drops; input queue 0/75: drops5 min input rate 0 bits/sec, 0 packets/sec 5 min output rate 0 bits/sec, packets/sec75427 packet input, 10685636 bytes, 0 buffer Received 75427 broadcast, 933 runts, 253 giants, 0 throttles0 input error, 0 cvc, 0 frame. 0 overrun, 0 ignored0 input packet with dribble condition detected78387 packet output, 7329230 bytes, 0 under nuns.

During routine network maintenance, a technician issues the show interface E0 command. A partial output of the command is shown in exhibit which values displayed in the command output could indicate that collisions have occurred (Choose two)

A. MTV 1500 bytes
B. Reliability 128/255
C. 933 runts
D. 75427 broadcasts
E. 78387 packets output
F. 253 giants

17. Exhibit:

Given the topology as illustrated, what commands are needed to configure IGRP on the Contoso1 Router? (Choose three)

A. Contoso1 (config ) # Router IGRP 100
B. Contoso1 (config) # router IGRP
C. Contoso1 (config - router) # network 192.168.6.0
D. Contoso1 (config - router) # network 192.168.7.0
E. Contoso1 (config - router) # network 192.168.8.0
F. Contoso1 (config - router) # network 192.168.9.0
not show picture
18. Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two)

A. Transport layer divides a data stream into segments & adds reliability & flow control information
B. Data link layer adds physical source & destination address & an FCS to the segment
C. Packets are created when the network layer encapsulate a frame with source & destination host address & protocol related control information
D. Packets are created when the network layers adds layers 3 address & control information to a segment
E. The presentation layer translated bits into bits into voltages for transmission across the physical link

19. Exhibit:

After Configuring the router show in the exhibit, the from the technician's laptop to all of the interface on each router were successful, if a technician initiates a telnet session to Router Contoso1 and issues the show arp command, which of the following items will be among the entries displayed in the output?

A. The MAC address of the S0 interface on Router Contoso1
B. The MAC address of the E0 interface on Router Contoso1
C. The MAC address of the S0 interface on Router Contoso2
D. The MAC address of the E0 interface on Router Contoso2

20. Exhibit:

Given a Network with a switched topology as illustrated. What will be the result if the Spanning-Tree Protocol is disabled on all the switches? (Choose two)

A. Broadcast Storm will occur.
B. Broadcast Storm will be detected quickly.
C. At least one link will be placed in standby.
D. Loops will occur.
E. Loops will be detected quickly.

21. The Frame relay circuit between Contoso1 & Contoso2 is experiencing congestion. Which type of notification are used to alleviate the congestion? (Choose three)

A. FECN
B. CIR
C. BECN
D. DE
E. DLCI 100 is Down

22. What does a configuration Register Setting of 0x2105 indicate to the Router?

A. The Boot IOS Code is Located in the NVRAM.
B. Check NVRAM for boot system Commands.
C. Bypass NVRAM Configurations.
D. Boot the IOS Code Located in ROM.
E. Perform a Password Recovery.
F. Bypass The Code In ROM.

23. All WAN links is side the Contoso.com network use PPP with for authentication security. Which command will display the CHAP authentication process as it occurs between two routers in the network.

A. show CHAP authentication
B. show interface serial 0
C. debug PPP authentication
D. debug CHAP authentication
E. show PPP authentication CHAP
24. Which of the following if addresses can be assigned to host devices (Choose two)

A. 205.7.8. 32/27
B. 191.168. 10. 2/23
C. 127.0.0.1
D. 224.0.0.10
E. 203.123.45. 47/28
F. 10.10.0.0/13

25. How many usable sub network and usable hosts per subnet result in the network address 201.105.13.0 is sub netted with a mask of /26?

A. 64 network and 4 hosts
B. 4 network and 64 hosts
C. 2 network and 62 hosts
D. 62 network and 2 hosts

**Linhnq** · 05-10-2004, 06:45 PM

RE: Mời trao đổi một số câu hỏi ôn tập CCNA (part I)

Hi Anh Minh & mọi người !!!

75 câu hỏi của anh đưa ra em thấy hầu như mọi người đã đọc và làm hết rồi nhưng về đáp án thì mọi người "cãi nhau" ghê qúa... Theo em nghĩ tốt nhất anh hệ thống lại hộ bọn em đáp án 75 câu này theo anh là chính xác nhất có thể. Như thế em thấy hiệu quả hơn.

Cám ơn anh Minh !

**Thang Tam** · 09-10-2004, 03:25 PM

Tra loi ho

Q63. You are a network technician at CiscoSystem, Inc. You are troubleshooting a connectivity problem. You issue the ping command during a router console session. Your trainee wants to know what the ping command use to test connectivity between the two devices. What would your reply be?
A. ICMP echo request
B. Information interrupt request
C. Timestamp reply
D. Source quench

Q182. Which of the following are the routing protocols that are capable of supporting a network that uses VLSM and route summarization? (Select three options.)
A. IGRP
B. EIGRP
C. RIP v1
D. RIP v2
E. OSPF
F. VTP
G. LSA

Q196. What does the concept route aggregate mean when one talks about using variable subnet masking?
A. Deleting unusable addresses through the creation of many subnets.
B. Combining routes to multiple networks into one supernet.
C. Reclaiming unused space by means of changing the subnet size.
D. Calculating the available host addresses in the AS.

Q213. Study the Exhibit below carefully:

Which of the following is the correct IP address configuration for HostA?
A. IP 192.168.100.31 255.255.255.240 default-gateway 192.168.100.18
B. IP 192.168.100.30 255.255.255.240 default-gateway 172.16.1.1
C. IP 192.168.100.20 255.255.255.240 default-gateway 192.168.100.17
D. IP 192.168.100.21 255.255.255.248 default-gateway 192.168.100.17
E. IP 192.168.100.19 255.255.255.248 default-gateway 172.16.1.1

Q236. You are the network technician at CiscoSystem. You tell your newly appointed CiscoSystem trainee that discontiguous networks in the IP addressing scheme can create problems when a routing protocol tries to identify the next hop. Your trainee now wants to know which routing protocols can be used to minimize the effects of these problems
What will your reply be? (Choose all that apply)

A. IGRP
B. ICMP
C. OSPF
D. RIP v1
E. RIP v2
F. EIGRP

Q254. You are the network administrator at CiscoSystem. You want to configure a default route to any destination network not found in the routing table on router TK1.
Which of the following commands can you issue?
A. TK1(config)# ip default-route 0.0.0.0 255.255.255.255 s0
B. TK1(config)# ip route 0.0.0.0 255.255.255.255 s0
C. TK1(config)# ip default-route 0.0.0.0 s0
D. TK1(config)# ip route 0.0.0.0 0.0.0.0 s0
E. TK1(config)# ip route any any e0

Q265. With regard to classless routing protocols, which of the following statements are true? (Choose two.)
A. Discontiguous subnets are not allowed.
B. Variable length subnet masks are allowed.
C. RIP v1 is a classless routing protocol.
D. IGRP supports classless routing within the same autonomous system.
E. RIP v2 supports classless routing.

Q293. You are the network administrator at CiscoSystem. The CiscoSystem network uses RIP as its routing protocol. A portion of the CiscoSystem network is shown in the following exhibit:

You want to create a gateway of last resort.
What command should you issue?
A. ********1(config)# ip route 172.16.4.2 0.0.0.0 0.0.0.0
B. ********1(config)# ip route 0.0.0.0 0.0.0.0 S1
C. ********1(config)# ip route 172.16.4.1 0.0.0.0 0.0.0.0
D. ********1(config)# ip route S0 0.0.0.0 0.0.0.0
E. ********1(config)# ip route 0.0.0.0 0.0.0.0 172.16.4.2

Q302
Your boss at Cisco.com asks you which routing protocols that supports VLSM.
What should you tell her? (Select three)
A. IP
B. RIPv1
C. EIGRP
D. OSPF
E. IGRP
F. RIPv2

Q303
Your boss at Cisco.com asks you which routing protocols that supports VLSM.
What should you tell her? (Select three)
A. RIPv1
B. IGRP
C. EIGRP
D. OSPF
E. IS-IS
F. CDPv2

Q305
You work as a network consultant. You are required to design a Cisco network for Cisco.com, a large company. Cisco has the following requirements on the network:
• minimal bandwidth for routing updates should be used
• quick converging
• support VLSM, CIDR, IP, and IPX.
What routing protocol should you suggest?
A. RIPv1
B. RIPv2
C. IGRP
D. OSPF
E. EIGRP

**Thang Tam** · 09-10-2004, 03:28 PM

ospf va eigrp

Q1. Which of the following factors determines the OSPF router ID when configuring a router with both physical and logical interfaces?
A. The lowest network number of any interface.
B. The highest network number of any interface.
C. The highest IP address of any logical interface.
D. The middle IP address of any logical interface.
E. The lowest IP address of any physical interface.
F. The highest IP address of any physical interface.
G. The lowest IP address of any logical interface.

Q12. What could be the rationale behind using passive-interface command when configuring a router?
A. Allows interfaces to share common IP addresses.
B. Allows an interface to remain up without the aid of keepalives.
C. Allows a router to send routing and not receive updates via that interface.
D. Allows a routing protocol to forward updates that is missing its IP address.
E. Allows a router to receive routing updates on an interface but not send updates via that interface.

Q27. What are the characteristic of link state routing protocols? (Choose three.)
A. The exchange of advertisement is triggered by a change in the network.
B. All routers exchange routing tables with each other in a multipoint network.
C. Packets are routed based upon the shortest path to the destination.
D. Paths are chosen depending on the cost efficiency factor.
E. Every router in an OSPF area is capable of representing the entire network topology.
F. Only the designated router in an OSPF area can represent the entire network topology.

Q32. You are a network technician at CiscoSystem. A newly appointed trainee wants to know what the basics of distance vector and link state routing protocols are.
What would your reply be? (Choose two.)
A. Distance vector protocols send the entire routing table to directly connected neighbors.
B. Distance vector protocols are responsible for sending updates to all networks listed in the routing table.
C. Link state protocols are responsible for sending the entire routing table to the whole network.
D. Link state protocols send updates regarding their own links status to all other routers on the network.

Q82. What will be the calculated OSPF cost of an OSPF interface that has been configured with the bandwidth 64 command?
A. 1 B. 10
C. 64 D. 1562
E. 64000 F. 128000

Q84. Which of the following statements is true regarding the command sequence illustrated below? (Choose three.)
CiscoSystemA(config)# interface loopback 0
CiscoSystemA(config-if)# ip address 192.168.16.24 255.255.255.255

A. It creates a virtual, software only, interface.
B. It provides a way to test the convergence of OSPF routing updates.
C. The mask of 255.255.255.255 is called a host mask.
D. It uses a wildcard mask of 255.255.255.255.
E. It ensures that an interface is always active for OSPF processes.
F. These commands can only be issued to configure serial interfaces.

Q86. Which of the statements mentioned below describes the OSPF routing protocol? (Choose three.)
A. It confines network instability to a single area of network.
B. It increases the routing overhead of the network
C. It supports VLSM
D. It routes between Autonomous Systems.
E. It allows extensive control of routing update

Q111. Why is it a wise decision to use a hierarchical design on OSPF networks? (Choose three options.)
A. To reduce the complexity of router configuration
B. To speed up convergence
C. To confine network instability to single areas of the network
D. To reduce routing overhead
E. To lower costs by replacing routers
F. To decrease latency by increasing bandwidth

Q112. You are a network technician at CiscoSystem, Inc. You have been asked to add a new router into an established OSPF network. The CiscoSystem networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem?
Router(config)# router ospf 1
Router(config-router)# network 10.10.10.0 255.0.0.0 area 0
A. The AS is not correctly configured
B. The network subnet mask is incorrectly configured
C. The network wildcard mask is configured incorrectly
D. The network number is not correctly configured
E. The process id is configured incorrectly

Q113. You are a network technician at CiscoSystem, Inc. You need to configure a router to run OSPF and to add network 192.168.10.0/24 to OSPF area 0.
Which of the following commands do you need to achieve this? (Choose two.)
A. Router(config-router)# network 192.168.10.0 0.0.0.255 0
B. Router(config-router)# network 192.168.10.0 0.0.0.255 area 0
C. Router(config-router)# network 192.168.10.0 255.255.255.0 area 0
D. Router(config)# router ospf 0
E. Router(config)# router ospf 1
F. Router(config)# router ospf area 0

Q115. OSPF routing makes use of areas. What are the characteristics of these areas? (Choose two options.)
A. Hierarchical OSPF networks do not need multiple areas
B. Multiple OSPF areas must connect to area 0
C. Single area OSPF networks must be configured in area 1
D. Areas can be assigned any number from 0 to 63535
E. Area 0 is called the backbone area
F. Each OSPF area need to be configures with a loopback interface

Q120. On which of the following types of network will OSPF elect a backup designated router?
A. Point-to-point and point-to-multipoint casting
B. Nonbroadcast and broadcast multipoint casting
C. Point-to-point and multi-access broadcasting
D. Point-to-multipoint and multi-access broadcasting
E. Nonbroadcast and broadcast multiaccess

Q124. Which of the following EIGRP route entries would be described as a feasible successor?
A. A primary route, stored in the routing table
B. A backup route, stored in the routing table
C. A backup route, stored in the topology table
D. A primary route, stored in the topology table
Q131. Which of the following are features of the routing protocol EIGRP? (Select two options.)
A. Has a maximum hop count of 25
B. Can differentiate between internal and external routes
C. Uses a 32-bit metric
D. Can maintain only one routing table
E. Need all networks to use the same subnet mask
F. Supports only one routed protocol

Q132. Which of the different types of packets mentioned below is sent by routers running OSPF to maintain connectivity with neighboring routers?
A. OSP packets
B. hello packets
C. keepalive packets
D. dead interval packets

Q133. Your trainee wants to know what information a router runs through a link-state protocol to build and maintain its topological database. What can you tell her? (Select two options.)
A. LSAs from other routers
B. Beacons received on point-to-point links
C. hello packets
D. Routing tables received from other routers
E. SAP packets sent by other routers
F. TTL packets from exclusive routers

Q139. When dealing with point-to-point networks, which address are OSPF hello packets addressed to?
A. 127.0.0.1 B. 192.168.0.5
C. 223.0.0.1 D. 172.16.0.1
E. 224.0.0.5 F. 254.255.255.255.255

Q149. One of your trainees wants to know what the calculated OSPF cost of the link will be if the interface has been configured with the bandwidth 64 command. What will you tell her?
A. 128000 B. 64000
C. 1582 D. 10
E. 1

Q163. One of the features of the OSPF routing protocol is that it maintains a topology database of information about other routers in the network.
Which of the following is a characteristic of this topology database?
A. All entries in the topology database will be included on each router.
B. All routers in the same OSPF area will have one topology database.
C. The Dijkstra algorithm is used in the creation of the topology database.
D. LSA packets are used to update and maintain the topology database

Q173. Which of the following statements can you use to describe the process identifier that is used to run OSPF on a router? (Select two options.)
A. It is needed to identify a unique instance of an OSPF database.
B. It is an optional parameter only necessary if multiple OSPF processes are used.
C. It is locally significant.
D. It is globally insignificant
E. All routers in the same OSPF area must have the same process ID to exchange routing information.
Q175. Study the Exhibit below carefully:

You are the network administrator at CiscoSystem. CiscoSystemA is using multiple routing protocols according to the exhibit. Assuming that all networks that are connected are advertised, there are no redistribution of routes, and all other parameters are set to default, which path do you think will CiscoSystemA use to reach CiscoSystemD?
A. It will take the route via CiscoSystemB.
B. It will take the route via CiscoSystemC.
C. It will use the route with the highest metric.
D. It will load balance over both paths.
E. It will take the shortest route

Q212. Assuming that all OSPF routers in a particular area are configured with identical priority values, which of the following values would a router use for OSPF router ID when it does not have a loopback interface?
A. The IP address of the first Fast Ethernet interface.
B. The IP address of the console management interface.
C. The highest IP address among its active interfaces.
D. The lowest IP address among its active interfaces.
E. The priority value until a loopback interface is configured.

Q224. You are a technician at CiscoSystem. Your newly appointed CiscoSystem trainee wants to know what the maximum number of hops are that OSPF allows before marking a network as unreachable.
What would your reply be?
A. 15
B. 16
C. 99
D. 255
E. Unlimited
F. OSPF doesn't use hop count

Q230. You are a trainee technician at CiscoSystem. Your instructor tells you that the OSPF routing protocol maintains a topology database of information about other routers in the network. Your instructor wants to know what the characteristics of this database are.
What would your reply be? (Choose two)
A. The Dijkstra SPF algorithm is used to create the topology database.
B. All entries listed in the topology database will be included in the routing tables on each router.
C. The topology database is a routing table for which no path decisions have been made.
D. Each router in the OSPF area will have a unique topology database.
E. The topology database is updated by link-state advertisements (LSAs).

Q234. You are the network administrator at CiscoSystem. CiscoSystem has an OSPF network. You want to observe the DR/BDR election process in the CiscoSystem network. What command can you issue in privileged EXEC mode to accomplish this?
A. CS#show ip ospf interface
B. CS#Show ip ospf priority
C. CS#Show ospf neighbor detail
D. CS#Show ospf processes
E. CS#Show ospf neighbor state

Q251. You are a network administrator at CiscoSystem. To routers on the CiscoSystem network, router TK1 and router TK2 are configured to run OSPF. However, the two routers cannot establish an adjacency relationship on their common Ethernet link. In troubleshooting this problem you issue the show ip ospf interface e0 command for routers TK1 and TK2. The output from the command is shown in the following
exhibit:
TK1: Ethernet is up, line protocol is up
Internet address 192.168.1.2/24, Area 0
Process ID 1, Router ID 192.168.31.33, Network Type BROADCAST, Cost: 10
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 192.168.31.33, Interface address 192.168.1.2
No backup designated router on this network
Time intervals configured, Hello 5, Dead 20, Wait 20, Retransmit 5
TK2: Ethernet0 is up, line protocol is up
Internet address 192.168.1.1/24, Area 0
Process ID 2, Router ID 192.168.31.11, Network Type BROADCAST, Cost: 10
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 192.168.31.11, Interface address 192.168.1.1
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Based on the exhibit, what is the probable cause of this problem?
A. The OSPF area is misconfigured.
B. The priority on TK2 should be set lower.
C. The cost on TK2 should be set lower.
D. The hello and dead timers are misconfigured.
E. You need to add a backup designated router to the network.
F. The OSPF process ID numbers do not match.

Q256. You are the network administrator at CiscoSystem. Your newly appointed CiscoSystem trainee wants to know what the default administrative distance of OSPF routing protocol is.
What will your reply be?
A. 90
B. 100
C. 110
D. 120
E. 170

Q257. You are the network administrator at CiscoSystem. You must configure a router for load balancing across 4 unequal cost paths on the CiscoSystem network.
Which of the following routing protocols can you use? (Choose two.)
A. RIP v1
B. RIP v2
C. IGRP
D. EIGRP
E. OSPF
F. VLSM

Q260. Which of the following routing protocols minimize the effects of the problems created by discontiguous networks? (Choose three.)
A. RIP v1
B. RIP v2
C. EIGRP
D. IGRP
E. OSPF
F. VLSM

Q274. With regard to the OSPF Hello protocol, which of the following statements are true? (Choose two.)
A. The OSPF Hello protocol provides dynamic neighbor discovery.
B. The OSPF Hello protocol detects unreachable neighbors in 90 second intervals.
C. The OSPF Hello protocol maintains neighbor relationships.
D. The OSPF Hello protocol negotiates correctness parameters between neighboring interfaces.
E. The OSPF Hello protocol uses timers to elect the router with the fastest links at the designated router.
F. The OSPF Hello protocol broadcast hello packets throughout the internetwork to discover all routers that are running OSPF.

Q287. You are the network administrator at CiscoSystem. You are troubleshooting an EIGRP problem on Router TK1. You want to check the IP addresses as well as the retransmit interval and the queue counts for the devices which have established an adjacency with Router TK1.
What command should you issue?
A. TK1#show ip eigrp adjacency
B. TK1#show ip eigrp topology
C. TK1#show ip eigrp interfaces
D. TK1#show ip eigrp neigbors

Q300
Your boss, CiscoSystem, is curious about EIGRP route information. She asks you which EIGRP route information are held in RAM and maintained through the use of hello and update packets.
What should you tell Tess? (Select two.)
A. Neighbor Table
B. SRF Table
C. RTP Table
D. Topology Table
E. Quey Table

Q306
Exhibit: bandwidth 64
You work as a technician at Cisco.com. You have an OSPF interface configured with the command displayed in the exhibit.
What is the calculated OSPF cost of this link?
A. 1
B. 10
C. 1562
D. 64000
E. 128000

Q311
Your boss at Cisco.com is interested in the concept of OSPF routing areas.
What are the characteristics of OSPF areas? (Choose three.)
A. Each OSPF area requires a loopback interface to be configured.
B. Areas may be assigned any number from 0 to 65535.
C. Area 0 is called the backbone area.
D. Hierarchical OSPF networks do not require multiple areas.
E. Multiple OSPF areas must connect to area 0.
F. Single area OSPF networks must be configured in area 1.

**Thang Tam** · 09-10-2004, 03:31 PM

rip va igrp va static rout

Q2. Which of the following routes will be used to forward data in a situation where a routing table contains static, RIP, and IGRP routes destined to the same network with each set to its default administrative distance?
A. The RIP route
B. The static route
C. The IGRP route
D. All three will load balance.

Q7. You are a network administrator at CiscoSystem. You are troubleshooting a router problem. You issue the show ip route command on one of the routers. The output from the command is shown in the following exhibit:

What does [120/3] represent?
A. 120 is the bandwidth allocation and 3 is the routing process number.
B. 120 is the administrative distance and 3 is the metric for that route.
C. 120 is the value of the update timer and 3 is the number of updates received.
D. 120 is the UDP port for forwarding traffic and 3 is the number of bridges.

Q19. You are a network technician at CiscoSystem. You are troubleshooting a LAN connectivity problem. Which of the following router IOS commands could you use? (Select three options.)
A. show ip route B. winipcfg
C. tracert D. show interfaces
E. traceroute F. ping

Q33. Which of the following statements is true regarding the split horizon rule?
A. Distance vector protocols need fall back routes that are responsible for momentary loops.
B. Networks can only remain fully operational provided all information is sent out all active interfaces.
C. Each AS must keep routing tables converged to avoid dead routes from being advertised.
D. Information about a route should not be sent back in the direction from which the original update came.
E. Only routers can split boundaries (horizons) between concentric networks.

Q39. You are a network administrator at CiscoSystem. The CiscoSystem network has three remote networks are accessed through serial 0/0 interface on the CiscoSystem1 router. The remote networks are: 172.16.10.0, 172.16.20.0, and 172.16.30.0. However, users cannot access 172.16.20.0. You are troubleshooting the problem. You issue the debug ip rip and show ip route commands. The output form the command is shown in the following exhibit:
<some output text is omitted>
CiscoSystem1# debug ip rip
ld00h: RIP:received vl update from 172.16.100.2 on Serial0/0
ld00h: 172.16.10.0 in 1 hops
ld00h: 172.16.20.0 in 1 hops
ld00h: 172.16.30.0 in 1 hops
CiscoSystem1# show ip route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 8 subnets
C 172.16.150.0 is directly connected, FastEthernet0/0
C 172.16.220.0 is directly connected, Loopback2
C 172.16.210.0 is directly connected, Loopback1
C 172.16.200.0 is directly connected, Loopback0
R 172.16.30.0 [120/1] via 172.16.100.2, 00:00:07, Serial0/0
S 172.16.20.0 [1/0] via 172.16.150.15
R 172.16.10.0 [120/1] via 172.16.100.2, 00:00:07, Serial0/0
C 172.16.100.0 is directly connected, Serial0/0

What is the most likely cause of the problem?
A. 172.16.20.0 is not located in CiscoSystem1’s routing table.
B. There is no gateway of last resort on CiscoSystem1.
C. The static route for 172.16.20.0 is incorrect.
D. The CiscoSystem1 router is not receiving 172.16.20.0 updates

Q41. You are a network technician at CiscoSystem, Inc. You are currently troubleshooting a Cisco router. You issue the show ip route command. The output from the command is displayed in the following exhibit:
CiscoSystem1#show ip route
Codes: C - connected, S - static, I - IGRP, R- RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inner area
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - Candidate default
U - per-user static route
Gateway of last resort is not set
R 192.168.8.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
C 192.168.9.0/24 is directly connected, Serial1
R 192.168.10.0/24 [120/7] via 192.168.9.1, 00:00:02, Serial1
R 192.168.11.0/24 [120/7] via 192.168.9.1, 00:00:03, Serial1
C 192.168.1.0/24 is directly connected, Ethernet0
C 192.168.2.0/24 is directly connected, Serial0
R 192.168.3.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
R 192.168.4.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0
R 192.168.5.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0
R 192.168.6.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0
R 192.168.7.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
Which route will not be entered into the routing table of a neighboring router?
A. R 192.168.11.0/24 [120/7] via 192.168.9.1, 00:00:03, Serial1
B. C 192.168.1.0/24 is directly connected, Ethernet0
C. R 192.168.8.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
D. R 192.168.5.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0

Q49. What could you use to prevent rooting loops in the network when configuring the network using a distance vector routing protocol? (Choose two.)
A. Spanning Tree Protocol
B. Shortest path first tree
C. Link-state advertisements (LSA)
D. Hold-down timers
E. Split horizon
F. VRP

Q50. The following exhibit shows the router topology for the CiscoSystem network.

All routers are running RIP. Which of the following statements describe how the routers exchange their
routing tables? (Choose all that apply.)
A. CiscoSystem4 exchanges with CiscoSystem3.
B. CiscoSystem4 exchanges with CiscoSystem2.
C. CiscoSystem4 exchanges with CiscoSystem1.
D. CiscoSystem1 exchanges with CiscoSystem3.
E. CiscoSystem1 exchanges with CiscoSystem2.
F. CiscoSystem1 exchanges with CiscoSystem4.

Q60. Which of the following statements describes the rule of split horizon?
A. Only routers can split boundaries (horizons) between concentric networks.
B. Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.
C. Networks can only remain fully converged if all information is sent out all active interfaces.
D. Information about a route should not be sent back in the direction from which the original update came.
E. Distance vector protocols need fall back routers that are responsible for momentary loops.

Q73. You are a network technician at CiscoSystem, Inc. You received reports that users on the CiscoSystem2 Ethernet site cannot access the CiscoSystem1 network site. You issue the show running-config command.
The output form the command is shown in the following exhibit:

After reviewing the command output, what is the most likely cause of the problem?
A. Link state routing protocol is missing.
B. Incorrectly configured IP addresses
C. IGRP is incorrectly configured.
D. Frame relay is not configured.

Q76 : You are a network technician at ********, Inc. You received a report that users on the 172.17.22.0 network are unable to reach the server located on the 172.31.5.0 network. You connected to router ********1 via the console port, issued the show ip route command, and could ping the server. The network topology and the output from the show ip route is shown in the following exhibit:

Cisco1#show ip route
Codes: C – connected, S – static, I – IGRP, R- RIP, M – mobile, B – BGP D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inner area E1 – OSPF external type 1, E2 – OSPF external type 2, E – EGP i – IS-IS, L1 – IS-IS level-1, L2 – IS-IS level-2, * - Candidate default U – per-user static route
Gateway of last resort is 172.19.22.2 to network 0.0.0.0
C 172.17..22.0/24 is directly connected, FastEthernet0/0
C 172.18.22.0/24 is directly connected, Serial0/0
S* 0.0.0.0/0[1/0] via 172.19.22.2

What is the cause of this problem?
A. The FastEthernet interface is disabled.
B. The neighbor relationship table is not updated.
C. A static route is configured incorrectly.
D. The routing table on ********1 is not updated.
E. IP routing is not enabled

Q77. You are a network technician at CiscoSystem, Inc. The router topology for the CiscoSystem network is shown in the following exhibit:

CiscoSystem2 and CiscoSystem3 are configured for RIPv1 and have complete connectivity. CiscoSystem1 was recently added to the network. You want CiscoSystem1 to have full connectivity as well.
What would then be the most appropriate CiscoSystem1 configuration?
A. CiscoSystem1(config)# router rip
CiscoSystem1(config-router)# network 10.0.0.0
CiscoSystem1(config-router)# network 172.16.0.0
CiscoSystem1(config-router)# network 192.168.1.0
B. CiscoSystem1(config)# router rip
CiscoSystem1(config-router)# network 10.0.0.0
CiscoSystem1(config-router)# network 192.168.1.0
C. CiscoSystem1(config)# router rip
CiscoSystem1(config-router)# network 10.0.0.0
CiscoSystem1(config-router)# network 172.16.0.0
D. CiscoSystem1(config)# router rip
CiscoSystem1(config-router)# network 10.0.0.0

Q99. You are a network technician at CiscoSystem, Inc. One of your trainees asked you which parameter must be supplied when initializing the IGRP routing process.
What would your response be?
A. IP address subnet mask
B. Metric weighting
C. Register administrative id
D. Autonomous system number
E. Connected network ID numbers

Q121. Study the Exhibit below carefully:

Popcorn# show ip protocols
Routing Protocol is “rip”
Sending updates every 30 seconds, next due in 13 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is
Incoming update filter list for all interfaces is
Redistribution: rip
Default version control: send version 1, receive any version
Interface Send Recv Triggered RIP Key-chain
Ethernet0 1 12
Ethernet1 1 12
Serial 1 12
Routing for Networks:
222.8.4.0
10.1.1.0
Routing Information Sources:
Gateway Distance Last Update
222.8.4.1 120 00:00:04
Consider the following scenario: You are consoled into the Peanut router and is able to ping Serial0 and Ethernet0 ports of the Popcorn router. However, you cannot ping its Ethernet1 interface. Given the exhibit above and the command output, can you identify the possible causes for this problem? (Select two options.)
A. The Popcorn router is not forwarding RIP updates.
B. The Popcorn router did not include network 192.168.12.0 in its routing configuration.
C. The Ethernet1 interface of the Popcorn router is shutdown.
D. The clockrate is not present in the configuration of one of the routers.
E. The Serial interface of the Popcorn router is not operationable.

Q122. Study the Exhibit below carefully:
RtrA#debug ip rip
Rip protocol debugging is on
RtrA#
1d05h: RIP: sending v1 update to 255.255.255.255 via FastEthernet0/0 (172.16.1.1)
1d05h: RIP: build update entries
1d05h: network 10.0.0.0 metric 1
1d05h: network 192.168.1.0 metric 2
1d05h: RIP: sending v1 update to 255.255.255.255 via Serial0/0 (10.0.8.1)
1d05h: RIP: build update entries
1d05h: network 172.16.0.0 metric 1
RtrA#
1d05h: RIP: received v1 update from 10.0.15.2 on Serial0/0
1d05h: 192.168.1.0 in 1 hops
1d05h: 192.168.0 in 16 hops (inaccessible)
Which of the following statements would be true when one encounters the command output shown in the display? (Select two options.)
A. A ping to 10.0.15.2 will be successful.
B. RtrA has three interfaces that will take part in the RIP process.
C. There are at least two routers participating in the RIP process.
D. A ping to 192.168.168.2 will be positive.

Q146
Study the Exhibit below carefully:

Users on the Holyoke router cannot get access to the intranet server attached to interface E0 of the Chicopee router. After investigating you discover that the routing table of the Holyoke router shows that an entry for the Chicopee E0 network is missing.
Which command, according to the above exhibit, will configure the Holyoke router with a path to the intranet server network?
A. Holyoke(config)# ip host Chicopee 201.73.127.2
B. Holyoke(config)# ip network 202.18.38.0
C. Holyoke(config)# ip network 202.18.18.0 255.255.255.0
D. Holyoke(config)# ip host Chicopee 201.73.127.0 255.255.255.0
E. Holyoke(config)# ip route 202.18.18.0 255.255.255.0 201.73.127.2
F. Holyoke(config)# ip route 201.73.127.2 255.255.255.0 202.18.18.0

Q152. One of your trainees asked you which parameter must be supplied when initializing the IGRP routing process. What is your response?
A. Connected subnet numbers
B. Register administrative subnet masks
C. IP address mask
D. Autonomous system number
E. Metric weights

Q161. Study the Exhibit below carefully:

The company, CiscoSystem, network is running OSPF on the routers as shown in the exhibit above. An ISDN link provides connectivity to the remote sales office.
Which of the following route types should be configured on the Corporate router to connect to the sales office’s remote network while minimizing network overhead on the ISDN link?
A. A RIP route
B. An OSPF route
C. A static route
D. A default route
E. A dynamic route

Q162. Study the Exhibit below carefully:
Cisco_System#show ip protocol
Routing Protocol is "rip"
Sending updates every 30 seconds, next due in 4 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistribution rip
Default version control: send version 1, receive any version
Interface Send Recv Triggered RIP Key-chain
Serial0/0 1 1 2
Serial0/1 1 1 2
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
10.0.0.0
Routing Information Sources:
Gateway Distance Last Update
10.168.11.14 120 00:00:22
Distance: (default is 120)
John#show ip interfaces brief
Interface IP-Address OK? Method Status
FastEthernet0/0 192.168.18.1 YES manual up
Serial0/0 10.168.11.17 YES manual up
FastEthernet0/1 unassigned YES NVRAM administratively down
Serial0/1 192.168.11.21 YES manual up
The exhibit above shows the output from the router. Use it to determine which of the following are correct. (Select two options.)
A. Router John will get routing updates on the Serial0/1 interface.
B. Router John will issue routing updates out the Serial0/0 interface.
C. Router John makes use of a link-state routing protocol.
D. Router John will get routing updates on the Serial0/0 interface.
E. Router John will issue routing updates out the FastEthernet0/0 interface.

Q172 One of your trainees wants to know which of the following statements regarding the command ip route 172.16.3.0 255.255.255.0 192.168.2.4 are true. What can you tell her? (Select two options.)
A. The default administrative distance is used.
B. The command is used to establish a static route.
C. The command is used to configure the routers.
D. The command is used to establish a stub network.
E. The subnet mask for the source address is 255.255.255.0

Q237. You are the network engineer at CiscoSystem. Your CiscoSystem trainee Tess wants to know which parameter must be supplied when you initialize the IGRP routing process.
What should you tell her?
A. The wild card mask
B. The IP address
C. The IP address mask
D. The metric weights
E. The Autonomous System number

Q253. You are the network administrator at CiscoSystem. The RIP routing protocol is being used on the CiscoSystem network. RIP is configured with default settings and equal cost load balancing. The CiscoSystem network has six paths with the same metric and administrative distance for a single destination.
Which of the six paths will RIP use to reach the destination?
A. Only the first two paths that are learned.
B. Four of the paths.
C. All six routes in a routed robin fashion.
D. The oldest two paths in the routing table.
E. The first path learned to the destination network.

Q266. You are the network administrator at CiscoSystem. You issue the show ip route command on a router during routine maintenance. The output from the show ip route command indicates a network that is advertised by both RIP and IGRP as an IGRP route. Your CiscoSystem assistant wants to know why the RIP route to the network is not used in the routing table.
What will your reply be?
A. IGRP has a faster update timer.
B. IGRP has a lower administrative distance.
C. RIP has a higher metric value for that route.
D. The IGRP route has fewer hops.
E. The RIP path has a routing loop.

Q268. You are the network administrator at CiscoSystem. The CiscoSystem network has the address of 192.1.1.0/24 and is using RIP as the routing protocol. A portion of the network is shown in the following exhibit:

You want to configure router Cisco1 for LAN-to-LAN communication with router Cisco2.
Which series of commands should you issue? (Choose three.)
A. Cisco1(config)# interface ethernet 0
Cisco1(config-if)# ip address 192.1.1.129 255.255.255.192
Cisco1(config-if)# no shutdown
B. Cisco1(config)# interface ethernet 0
Cisco1(config-if)# ip address 192.1.1.97 255.255.255.192
Cisco1(config-if)# no shutdown
C. Cisco1(config)# interface serial 0
Cisco1(config-if)# ip address 192.1.1.4 255.255.255.252
Cisco1(config-if)# clock rate 56000
D. Cisco1(config)# interface serial 0
Cisco1(config-if)# ip address 192.1.1.6 255.255.255.252
Cisco1(config-if)# no shutdown
E. Cisco1(config)# router rip
Cisco1(config-router)# network 192.1.1.4
Cisco1(config-router)# network 192.1.1.128
F. Cisco1(config)# router rip
Cisco1(config-router)# version 2
Cisco1(config-router)# network 192.1.1.0

Q269. You are the network administrator at CiscoSystem. A portion of the network is shown in the following exhibit:

You configure a static route to the 10.5.6.0/24 network on router CiscoSystem. You want router CiscoSystem to treat this static route as the most reliable route.
Which command should you use?
A. Cisco(config)# ip route 10.5.6.0 0.0.0.255 fa0/0
B. Cisco (config)# ip route 10.5.6.0 0.0.0.255 10.5.4.6
C. Cisco (config)# ip route 10.5.6.0 255.255.255.0 fa0/0
D. Cisco (config)# ip route 10.5.6.0 255.255.255.0 10.5.4.6
E. Cisco (config)# ip route 10.5.4.6 0.0.0.255 10.5.6.0
F. Cisco (config)# ip route 10.5.4.6 255.255.255.0 10.5.6.0

Q276. You are the network administrator at CiscoSystem. The CiscoSystem network is shown in the following exhibit:

With regard to the routing decision router A will make to reach router E, which of the following statements are true? (Choose three.)
A. Router A will determine that all paths have an equal cost if RIP is the routing protocol.
B. Router A will install only the ADE path in its routing table if RIP is the routing protocol.
C. Router A will determine that path ACE has the lowest cost if IGRP is the routing protocol.
D. Router A will determine that path ADE has the lowest cost if IGRP is the routing protocol.
E. Router A will use the route information learned by IGRP if both RIP and IGRP are configured on router A.
F. Router A will use the route information learned by RIP if both RIP and IGRP are configured on router A.

Q285. You are the network technician at CiscoSystem. Two routers on the CiscoSystem network, Router Cisco1 and Router Cisco2 are configured with RIP only. Router Cisco1 receives a routing update with a higher cost path to a remote network that is already in its routing table.
What will Router Cisco1 do?
A. It will ignore the update and take no further action.
B. It will add the update information to its routing table.
C. It will replace the existing routing table entry with the update information.
D. It will delete the existing routing table and will send out hello packets to rebuild the routing table.

Q335
Your boss at Cisco.com is curios about the extended ping command.
Which of the following statements are true? (Choose all that apply.)
A. The extended ping command is supported from user EXEC mode.
B. The extended ping command is supported from privileged EXEC mode.
C. With the extended ping command you can specify the port to be pinged.
D. With the extended ping command you can specify the timeout.
E. With the extended ping command you can specify the datagram size.

**Thang Tam** · 09-10-2004, 03:33 PM

ip va subnet

Q2. Which of the following routes will be used to forward data in a situation where a routing table contains static, RIP, and IGRP routes destined to the same network with each set to its default administrative distance?
A. The RIP route
B. The static route
C. The IGRP route
D. All three will load balance.

Q7. You are a network administrator at CiscoSystem. You are troubleshooting a router problem. You issue the show ip route command on one of the routers. The output from the command is shown in the following exhibit:

What does [120/3] represent?
A. 120 is the bandwidth allocation and 3 is the routing process number.
B. 120 is the administrative distance and 3 is the metric for that route.
C. 120 is the value of the update timer and 3 is the number of updates received.
D. 120 is the UDP port for forwarding traffic and 3 is the number of bridges.

Q19. You are a network technician at CiscoSystem. You are troubleshooting a LAN connectivity problem. Which of the following router IOS commands could you use? (Select three options.)
A. show ip route B. winipcfg
C. tracert D. show interfaces
E. traceroute F. ping

Q33. Which of the following statements is true regarding the split horizon rule?
A. Distance vector protocols need fall back routes that are responsible for momentary loops.
B. Networks can only remain fully operational provided all information is sent out all active interfaces.
C. Each AS must keep routing tables converged to avoid dead routes from being advertised.
D. Information about a route should not be sent back in the direction from which the original update came.
E. Only routers can split boundaries (horizons) between concentric networks.

Q39. You are a network administrator at CiscoSystem. The CiscoSystem network has three remote networks are accessed through serial 0/0 interface on the CiscoSystem1 router. The remote networks are: 172.16.10.0, 172.16.20.0, and 172.16.30.0. However, users cannot access 172.16.20.0. You are troubleshooting the problem. You issue the debug ip rip and show ip route commands. The output form the command is shown in the following exhibit:
<some output text is omitted>
CiscoSystem1# debug ip rip
ld00h: RIP:received vl update from 172.16.100.2 on Serial0/0
ld00h: 172.16.10.0 in 1 hops
ld00h: 172.16.20.0 in 1 hops
ld00h: 172.16.30.0 in 1 hops
CiscoSystem1# show ip route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 8 subnets
C 172.16.150.0 is directly connected, FastEthernet0/0
C 172.16.220.0 is directly connected, Loopback2
C 172.16.210.0 is directly connected, Loopback1
C 172.16.200.0 is directly connected, Loopback0
R 172.16.30.0 [120/1] via 172.16.100.2, 00:00:07, Serial0/0
S 172.16.20.0 [1/0] via 172.16.150.15
R 172.16.10.0 [120/1] via 172.16.100.2, 00:00:07, Serial0/0
C 172.16.100.0 is directly connected, Serial0/0

What is the most likely cause of the problem?
A. 172.16.20.0 is not located in CiscoSystem1’s routing table.
B. There is no gateway of last resort on CiscoSystem1.
C. The static route for 172.16.20.0 is incorrect.
D. The CiscoSystem1 router is not receiving 172.16.20.0 updates

Q41. You are a network technician at CiscoSystem, Inc. You are currently troubleshooting a Cisco router. You issue the show ip route command. The output from the command is displayed in the following exhibit:
CiscoSystem1#show ip route
Codes: C - connected, S - static, I - IGRP, R- RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inner area
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - Candidate default
U - per-user static route
Gateway of last resort is not set
R 192.168.8.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
C 192.168.9.0/24 is directly connected, Serial1
R 192.168.10.0/24 [120/7] via 192.168.9.1, 00:00:02, Serial1
R 192.168.11.0/24 [120/7] via 192.168.9.1, 00:00:03, Serial1
C 192.168.1.0/24 is directly connected, Ethernet0
C 192.168.2.0/24 is directly connected, Serial0
R 192.168.3.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
R 192.168.4.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0
R 192.168.5.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0
R 192.168.6.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0
R 192.168.7.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
Which route will not be entered into the routing table of a neighboring router?
A. R 192.168.11.0/24 [120/7] via 192.168.9.1, 00:00:03, Serial1
B. C 192.168.1.0/24 is directly connected, Ethernet0
C. R 192.168.8.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
D. R 192.168.5.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0

Q49. What could you use to prevent rooting loops in the network when configuring the network using a distance vector routing protocol? (Choose two.)
A. Spanning Tree Protocol
B. Shortest path first tree
C. Link-state advertisements (LSA)
D. Hold-down timers
E. Split horizon
F. VRP

Q50. The following exhibit shows the router topology for the CiscoSystem network.

All routers are running RIP. Which of the following statements describe how the routers exchange their
routing tables? (Choose all that apply.)
A. CiscoSystem4 exchanges with CiscoSystem3.
B. CiscoSystem4 exchanges with CiscoSystem2.
C. CiscoSystem4 exchanges with CiscoSystem1.
D. CiscoSystem1 exchanges with CiscoSystem3.
E. CiscoSystem1 exchanges with CiscoSystem2.
F. CiscoSystem1 exchanges with CiscoSystem4.

Q60. Which of the following statements describes the rule of split horizon?
A. Only routers can split boundaries (horizons) between concentric networks.
B. Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.
C. Networks can only remain fully converged if all information is sent out all active interfaces.
D. Information about a route should not be sent back in the direction from which the original update came.
E. Distance vector protocols need fall back routers that are responsible for momentary loops.

Q73. You are a network technician at CiscoSystem, Inc. You received reports that users on the CiscoSystem2 Ethernet site cannot access the CiscoSystem1 network site. You issue the show running-config command.
The output form the command is shown in the following exhibit:

After reviewing the command output, what is the most likely cause of the problem?
A. Link state routing protocol is missing.
B. Incorrectly configured IP addresses
C. IGRP is incorrectly configured.
D. Frame relay is not configured.

Q76 : You are a network technician at ********, Inc. You received a report that users on the 172.17.22.0 network are unable to reach the server located on the 172.31.5.0 network. You connected to router ********1 via the console port, issued the show ip route command, and could ping the server. The network topology and the output from the show ip route is shown in the following exhibit:

Cisco1#show ip route
Codes: C – connected, S – static, I – IGRP, R- RIP, M – mobile, B – BGP D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inner area E1 – OSPF external type 1, E2 – OSPF external type 2, E – EGP i – IS-IS, L1 – IS-IS level-1, L2 – IS-IS level-2, * - Candidate default U – per-user static route
Gateway of last resort is 172.19.22.2 to network 0.0.0.0
C 172.17..22.0/24 is directly connected, FastEthernet0/0
C 172.18.22.0/24 is directly connected, Serial0/0
S* 0.0.0.0/0[1/0] via 172.19.22.2

What is the cause of this problem?
A. The FastEthernet interface is disabled.
B. The neighbor relationship table is not updated.
C. A static route is configured incorrectly.
D. The routing table on ********1 is not updated.
E. IP routing is not enabled

Q77. You are a network technician at CiscoSystem, Inc. The router topology for the CiscoSystem network is shown in the following exhibit:

CiscoSystem2 and CiscoSystem3 are configured for RIPv1 and have complete connectivity. CiscoSystem1 was recently added to the network. You want CiscoSystem1 to have full connectivity as well.
What would then be the most appropriate CiscoSystem1 configuration?
A. CiscoSystem1(config)# router rip
CiscoSystem1(config-router)# network 10.0.0.0
CiscoSystem1(config-router)# network 172.16.0.0
CiscoSystem1(config-router)# network 192.168.1.0
B. CiscoSystem1(config)# router rip
CiscoSystem1(config-router)# network 10.0.0.0
CiscoSystem1(config-router)# network 192.168.1.0
C. CiscoSystem1(config)# router rip
CiscoSystem1(config-router)# network 10.0.0.0
CiscoSystem1(config-router)# network 172.16.0.0
D. CiscoSystem1(config)# router rip
CiscoSystem1(config-router)# network 10.0.0.0

Q99. You are a network technician at CiscoSystem, Inc. One of your trainees asked you which parameter must be supplied when initializing the IGRP routing process.
What would your response be?
A. IP address subnet mask
B. Metric weighting
C. Register administrative id
D. Autonomous system number
E. Connected network ID numbers

Q121. Study the Exhibit below carefully:

Popcorn# show ip protocols
Routing Protocol is “rip”
Sending updates every 30 seconds, next due in 13 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is
Incoming update filter list for all interfaces is
Redistribution: rip
Default version control: send version 1, receive any version
Interface Send Recv Triggered RIP Key-chain
Ethernet0 1 12
Ethernet1 1 12
Serial 1 12
Routing for Networks:
222.8.4.0
10.1.1.0
Routing Information Sources:
Gateway Distance Last Update
222.8.4.1 120 00:00:04
Consider the following scenario: You are consoled into the Peanut router and is able to ping Serial0 and Ethernet0 ports of the Popcorn router. However, you cannot ping its Ethernet1 interface. Given the exhibit above and the command output, can you identify the possible causes for this problem? (Select two options.)
A. The Popcorn router is not forwarding RIP updates.
B. The Popcorn router did not include network 192.168.12.0 in its routing configuration.
C. The Ethernet1 interface of the Popcorn router is shutdown.
D. The clockrate is not present in the configuration of one of the routers.
E. The Serial interface of the Popcorn router is not operationable.

Q122. Study the Exhibit below carefully:
RtrA#debug ip rip
Rip protocol debugging is on
RtrA#
1d05h: RIP: sending v1 update to 255.255.255.255 via FastEthernet0/0 (172.16.1.1)
1d05h: RIP: build update entries
1d05h: network 10.0.0.0 metric 1
1d05h: network 192.168.1.0 metric 2
1d05h: RIP: sending v1 update to 255.255.255.255 via Serial0/0 (10.0.8.1)
1d05h: RIP: build update entries
1d05h: network 172.16.0.0 metric 1
RtrA#
1d05h: RIP: received v1 update from 10.0.15.2 on Serial0/0
1d05h: 192.168.1.0 in 1 hops
1d05h: 192.168.0 in 16 hops (inaccessible)
Which of the following statements would be true when one encounters the command output shown in the display? (Select two options.)
A. A ping to 10.0.15.2 will be successful.
B. RtrA has three interfaces that will take part in the RIP process.
C. There are at least two routers participating in the RIP process.
D. A ping to 192.168.168.2 will be positive.

Q146
Study the Exhibit below carefully:

Users on the Holyoke router cannot get access to the intranet server attached to interface E0 of the Chicopee router. After investigating you discover that the routing table of the Holyoke router shows that an entry for the Chicopee E0 network is missing.
Which command, according to the above exhibit, will configure the Holyoke router with a path to the intranet server network?
A. Holyoke(config)# ip host Chicopee 201.73.127.2
B. Holyoke(config)# ip network 202.18.38.0
C. Holyoke(config)# ip network 202.18.18.0 255.255.255.0
D. Holyoke(config)# ip host Chicopee 201.73.127.0 255.255.255.0
E. Holyoke(config)# ip route 202.18.18.0 255.255.255.0 201.73.127.2
F. Holyoke(config)# ip route 201.73.127.2 255.255.255.0 202.18.18.0

Q152. One of your trainees asked you which parameter must be supplied when initializing the IGRP routing process. What is your response?
A. Connected subnet numbers
B. Register administrative subnet masks
C. IP address mask
D. Autonomous system number
E. Metric weights

Q161. Study the Exhibit below carefully:

The company, CiscoSystem, network is running OSPF on the routers as shown in the exhibit above. An ISDN link provides connectivity to the remote sales office.
Which of the following route types should be configured on the Corporate router to connect to the sales office’s remote network while minimizing network overhead on the ISDN link?
A. A RIP route
B. An OSPF route
C. A static route
D. A default route
E. A dynamic route

Q162. Study the Exhibit below carefully:
Cisco_System#show ip protocol
Routing Protocol is "rip"
Sending updates every 30 seconds, next due in 4 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistribution rip
Default version control: send version 1, receive any version
Interface Send Recv Triggered RIP Key-chain
Serial0/0 1 1 2
Serial0/1 1 1 2
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
10.0.0.0
Routing Information Sources:
Gateway Distance Last Update
10.168.11.14 120 00:00:22
Distance: (default is 120)
John#show ip interfaces brief
Interface IP-Address OK? Method Status
FastEthernet0/0 192.168.18.1 YES manual up
Serial0/0 10.168.11.17 YES manual up
FastEthernet0/1 unassigned YES NVRAM administratively down
Serial0/1 192.168.11.21 YES manual up
The exhibit above shows the output from the router. Use it to determine which of the following are correct. (Select two options.)
A. Router John will get routing updates on the Serial0/1 interface.
B. Router John will issue routing updates out the Serial0/0 interface.
C. Router John makes use of a link-state routing protocol.
D. Router John will get routing updates on the Serial0/0 interface.
E. Router John will issue routing updates out the FastEthernet0/0 interface.

Q172 One of your trainees wants to know which of the following statements regarding the command ip route 172.16.3.0 255.255.255.0 192.168.2.4 are true. What can you tell her? (Select two options.)
A. The default administrative distance is used.
B. The command is used to establish a static route.
C. The command is used to configure the routers.
D. The command is used to establish a stub network.
E. The subnet mask for the source address is 255.255.255.0

Q237. You are the network engineer at CiscoSystem. Your CiscoSystem trainee Tess wants to know which parameter must be supplied when you initialize the IGRP routing process.
What should you tell her?
A. The wild card mask
B. The IP address
C. The IP address mask
D. The metric weights
E. The Autonomous System number

Q253. You are the network administrator at CiscoSystem. The RIP routing protocol is being used on the CiscoSystem network. RIP is configured with default settings and equal cost load balancing. The CiscoSystem network has six paths with the same metric and administrative distance for a single destination.
Which of the six paths will RIP use to reach the destination?
A. Only the first two paths that are learned.
B. Four of the paths.
C. All six routes in a routed robin fashion.
D. The oldest two paths in the routing table.
E. The first path learned to the destination network.

Q266. You are the network administrator at CiscoSystem. You issue the show ip route command on a router during routine maintenance. The output from the show ip route command indicates a network that is advertised by both RIP and IGRP as an IGRP route. Your CiscoSystem assistant wants to know why the RIP route to the network is not used in the routing table.
What will your reply be?
A. IGRP has a faster update timer.
B. IGRP has a lower administrative distance.
C. RIP has a higher metric value for that route.
D. The IGRP route has fewer hops.
E. The RIP path has a routing loop.

Q268. You are the network administrator at CiscoSystem. The CiscoSystem network has the address of 192.1.1.0/24 and is using RIP as the routing protocol. A portion of the network is shown in the following exhibit:

You want to configure router Cisco1 for LAN-to-LAN communication with router Cisco2.
Which series of commands should you issue? (Choose three.)
A. Cisco1(config)# interface ethernet 0
Cisco1(config-if)# ip address 192.1.1.129 255.255.255.192
Cisco1(config-if)# no shutdown
B. Cisco1(config)# interface ethernet 0
Cisco1(config-if)# ip address 192.1.1.97 255.255.255.192
Cisco1(config-if)# no shutdown
C. Cisco1(config)# interface serial 0
Cisco1(config-if)# ip address 192.1.1.4 255.255.255.252
Cisco1(config-if)# clock rate 56000
D. Cisco1(config)# interface serial 0
Cisco1(config-if)# ip address 192.1.1.6 255.255.255.252
Cisco1(config-if)# no shutdown
E. Cisco1(config)# router rip
Cisco1(config-router)# network 192.1.1.4
Cisco1(config-router)# network 192.1.1.128
F. Cisco1(config)# router rip
Cisco1(config-router)# version 2
Cisco1(config-router)# network 192.1.1.0

Q269. You are the network administrator at CiscoSystem. A portion of the network is shown in the following exhibit:

You configure a static route to the 10.5.6.0/24 network on router CiscoSystem. You want router CiscoSystem to treat this static route as the most reliable route.
Which command should you use?
A. Cisco(config)# ip route 10.5.6.0 0.0.0.255 fa0/0
B. Cisco (config)# ip route 10.5.6.0 0.0.0.255 10.5.4.6
C. Cisco (config)# ip route 10.5.6.0 255.255.255.0 fa0/0
D. Cisco (config)# ip route 10.5.6.0 255.255.255.0 10.5.4.6
E. Cisco (config)# ip route 10.5.4.6 0.0.0.255 10.5.6.0
F. Cisco (config)# ip route 10.5.4.6 255.255.255.0 10.5.6.0

Q276. You are the network administrator at CiscoSystem. The CiscoSystem network is shown in the following exhibit:

With regard to the routing decision router A will make to reach router E, which of the following statements are true? (Choose three.)
A. Router A will determine that all paths have an equal cost if RIP is the routing protocol.
B. Router A will install only the ADE path in its routing table if RIP is the routing protocol.
C. Router A will determine that path ACE has the lowest cost if IGRP is the routing protocol.
D. Router A will determine that path ADE has the lowest cost if IGRP is the routing protocol.
E. Router A will use the route information learned by IGRP if both RIP and IGRP are configured on router A.
F. Router A will use the route information learned by RIP if both RIP and IGRP are configured on router A.

Q285. You are the network technician at CiscoSystem. Two routers on the CiscoSystem network, Router Cisco1 and Router Cisco2 are configured with RIP only. Router Cisco1 receives a routing update with a higher cost path to a remote network that is already in its routing table.
What will Router Cisco1 do?
A. It will ignore the update and take no further action.
B. It will add the update information to its routing table.
C. It will replace the existing routing table entry with the update information.
D. It will delete the existing routing table and will send out hello packets to rebuild the routing table.

Q335
Your boss at Cisco.com is curios about the extended ping command.
Which of the following statements are true? (Choose all that apply.)
A. The extended ping command is supported from user EXEC mode.
B. The extended ping command is supported from privileged EXEC mode.
C. With the extended ping command you can specify the port to be pinged.
D. With the extended ping command you can specify the timeout.
E. With the extended ping command you can specify the datagram size.

**Thang Tam** · 09-10-2004, 03:39 PM

advance IP

Q63. You are a network technician at CiscoSystem, Inc. You are troubleshooting a connectivity problem. You issue the ping command during a router console session. Your trainee wants to know what the ping command use to test connectivity between the two devices. What would your reply be?
A. ICMP echo request
B. Information interrupt request
C. Timestamp reply
D. Source quench

Q182. Which of the following are the routing protocols that are capable of supporting a network that uses VLSM and route summarization? (Select three options.)
A. IGRP
B. EIGRP
C. RIP v1
D. RIP v2
E. OSPF
F. VTP
G. LSA

Q196. What does the concept route aggregate mean when one talks about using variable subnet masking?
A. Deleting unusable addresses through the creation of many subnets.
B. Combining routes to multiple networks into one supernet.
C. Reclaiming unused space by means of changing the subnet size.
D. Calculating the available host addresses in the AS.

Q213. Study the Exhibit below carefully:

Which of the following is the correct IP address configuration for HostA?
A. IP 192.168.100.31 255.255.255.240 default-gateway 192.168.100.18
B. IP 192.168.100.30 255.255.255.240 default-gateway 172.16.1.1
C. IP 192.168.100.20 255.255.255.240 default-gateway 192.168.100.17
D. IP 192.168.100.21 255.255.255.248 default-gateway 192.168.100.17
E. IP 192.168.100.19 255.255.255.248 default-gateway 172.16.1.1

Q236. You are the network technician at CiscoSystem. You tell your newly appointed CiscoSystem trainee that discontiguous networks in the IP addressing scheme can create problems when a routing protocol tries to identify the next hop. Your trainee now wants to know which routing protocols can be used to minimize the effects of these problems
What will your reply be? (Choose all that apply)

A. IGRP
B. ICMP
C. OSPF
D. RIP v1
E. RIP v2
F. EIGRP

Q254. You are the network administrator at CiscoSystem. You want to configure a default route to any destination network not found in the routing table on router TK1.
Which of the following commands can you issue?
A. TK1(config)# ip default-route 0.0.0.0 255.255.255.255 s0
B. TK1(config)# ip route 0.0.0.0 255.255.255.255 s0
C. TK1(config)# ip default-route 0.0.0.0 s0
D. TK1(config)# ip route 0.0.0.0 0.0.0.0 s0
E. TK1(config)# ip route any any e0

Q265. With regard to classless routing protocols, which of the following statements are true? (Choose two.)
A. Discontiguous subnets are not allowed.
B. Variable length subnet masks are allowed.
C. RIP v1 is a classless routing protocol.
D. IGRP supports classless routing within the same autonomous system.
E. RIP v2 supports classless routing.

Q293. You are the network administrator at CiscoSystem. The CiscoSystem network uses RIP as its routing protocol. A portion of the CiscoSystem network is shown in the following exhibit:

You want to create a gateway of last resort.
What command should you issue?
A. ********1(config)# ip route 172.16.4.2 0.0.0.0 0.0.0.0
B. ********1(config)# ip route 0.0.0.0 0.0.0.0 S1
C. ********1(config)# ip route 172.16.4.1 0.0.0.0 0.0.0.0
D. ********1(config)# ip route S0 0.0.0.0 0.0.0.0
E. ********1(config)# ip route 0.0.0.0 0.0.0.0 172.16.4.2

Q302
Your boss at Cisco.com asks you which routing protocols that supports VLSM.
What should you tell her? (Select three)
A. IP
B. RIPv1
C. EIGRP
D. OSPF
E. IGRP
F. RIPv2

Q303
Your boss at Cisco.com asks you which routing protocols that supports VLSM.
What should you tell her? (Select three)
A. RIPv1
B. IGRP
C. EIGRP
D. OSPF
E. IS-IS
F. CDPv2

Q305
You work as a network consultant. You are required to design a Cisco network for Cisco.com, a large company. Cisco has the following requirements on the network:
• minimal bandwidth for routing updates should be used
• quick converging
• support VLSM, CIDR, IP, and IPX.
What routing protocol should you suggest?
A. RIPv1
B. RIPv2
C. IGRP
D. OSPF
E. EIGRP

**rollroll** · 11-10-2004, 10:31 PM

Re: Tra loi ho

Originally posted by Thang Tam

Q63. You are a network technician at CiscoSystem, Inc. You are troubleshooting a connectivity problem. You issue the ping command during a router console session. Your trainee wants to know what the ping command use to test connectivity between the two devices. What would your reply be?
A. ICMP echo request
B. Information interrupt request
C. Timestamp reply
D. Source quench

Q182. Which of the following are the routing protocols that are capable of supporting a network that uses VLSM and route summarization? (Select three options.)
A. IGRP
B. EIGRP
C. RIP v1
D. RIP v2
E. OSPF
F. VTP
G. LSA

Q196. What does the concept route aggregate mean when one talks about using variable subnet masking?
A. Deleting unusable addresses through the creation of many subnets.
B. Combining routes to multiple networks into one supernet. not sure
C. Reclaiming unused space by means of changing the subnet size.
D. Calculating the available host addresses in the AS.

Q236. You are the network technician at CiscoSystem. You tell your newly appointed CiscoSystem trainee that discontiguous networks in the IP addressing scheme can create problems when a routing protocol tries to identify the next hop. Your trainee now wants to know which routing protocols can be used to minimize the effects of these problems
What will your reply be? (Choose all that apply)

A. IGRP
B. ICMP
C. OSPF
D. RIP v1
E. RIP v2
F. EIGRP

Q254. You are the network administrator at CiscoSystem. You want to configure a default route to any destination network not found in the routing table on router TK1.
Which of the following commands can you issue?
A. TK1(config)# ip default-route 0.0.0.0 255.255.255.255 s0
B. TK1(config)# ip route 0.0.0.0 255.255.255.255 s0
C. TK1(config)# ip default-route 0.0.0.0 s0
D. TK1(config)# ip route 0.0.0.0 0.0.0.0 s0
E. TK1(config)# ip route any any e0

Q265. With regard to classless routing protocols, which of the following statements are true? (Choose two.)
A. Discontiguous subnets are not allowed.
B. Variable length subnet masks are allowed.
C. RIP v1 is a classless routing protocol.
D. IGRP supports classless routing within the same autonomous system.
E. RIP v2 supports classless routing.

Q302
Your boss at Cisco.com asks you which routing protocols that supports VLSM.
What should you tell her? (Select three)
A. IP
B. RIPv1
C. EIGRP
D. OSPF
E. IGRP
F. RIPv2

Q303
Your boss at Cisco.com asks you which routing protocols that supports VLSM.
What should you tell her? (Select three)
A. RIPv1
B. IGRP
C. EIGRP
D. OSPF
E. IS-IS
F. CDPv2

Q305
You work as a network consultant. You are required to design a Cisco network for Cisco.com, a large company. Cisco has the following requirements on the network:
• minimal bandwidth for routing updates should be used
• quick converging
• support VLSM, CIDR, IP, and IPX.
What routing protocol should you suggest?
A. RIPv1
B. RIPv2
C. IGRP
D. OSPF
E. EIGRP

**rosekiller** · 23-10-2004, 06:16 PM

đề nghị anh Minh check lại

Originally posted by dangquangminh

31. New switches have been purchased for a network upgrade. The objective for the network design emphasizes efficient, error-free transport instead of fast transport. Which switching mode should be configured on the new switches to provide error-free transport to the network?

A. cut-through
B. fragment-free
C. frame-filtering
D. store-and-forward
E. 802.1q forwarding
F. VTP transparent mode

Ans: D, chưa dám chắc lắm, xin anh Minh confirm.

Trong các cơ chế switch, kiểu store-and-forward là đảm bảo các lỗi truyền frame ít xảy ra nhất. Do đó bạn chọn D là một đáp án chính xác.

Thân,

em đồng ý là store and forwarrd đảm bảo ít lỗi khi truyền frame, nhưng giải pháp này lại không đảm bảo tính hiệu quả Effective (truyền nhanh, ít lỗi) -> theo em chuẩn hơn là giải pháp Fragment-Free, tức đáp án B!

**rosekiller** · 23-10-2004, 06:51 PM

Originally posted by danguyennhi

Originally posted by calvin.nguyen

68. You are working as a network technician at Contoso. You are required to troubleshooting the WAN link between the Contoso main office at Boston and the Contoso remote office at Rio De Janeiro. A Cisco router that was providing Frame Relay connectivity at the Rio de Janeiro site as replaced with a different vendor's frame relay router. Connectivity is now down between the Boston and Rio De Janeiro site.
What is the most likely cause of the problem?

A. Mismatched LMI types.
B. Incorrect DLCI.
C. Mismatched encapsulation types.
D. Incorrect IP address mapping.

Câu A . Cisco LMI dùng DLCI 1023 còn ITU và ANSI dùng DLCI 0.

Hi

Do site ở Rio thay thế bằng một router frame relay của một vendor khác nên khả năng vấn đề lớn nhất nằm ở vấn đề LMI mismatch.

Chúc vui

Theo tôi thì đáp án phải là C, encapsulation phải là ietf, not cisco device!

**nqminh79** · 23-10-2004, 07:18 PM

RE: Mời trao đổi một số câu hỏi ôn tập CCNA

Mình đồng ý với RoseKiller là encap ietf (vì LMI type đã được autosensed và chỉ có ý nghĩa Local). Chắc rosekiller sắp thi cc fải ko, me too. ******** có khá nhiều câu sai, kể cả v40 , họ làm thế là có ý của họ rồi.

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