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Q91. EIGRP has been configured to operate over Frame Relay multipoint connections. What should the bandwidth command be set to?

A. the CIR rate of the lowest speed connection multiplied by the number of circuits

B. the CIR rate of the lowest speed connection

C. the CIR rate of the highest speed connection

D. the sum of all the CIRs divided by the number of connections

Answer: A


Q92. Refer to the exhibit.


A new TAC engineer came to you for advice. A GRE over IPsec tunnel was configured, but the tunnel is not coming up. What did the TAC engineer configure incorrectly?

Select the best response.

A. The crypto isakmp configuration is not correct.

B. The crypto map configuration is not correct.

C. The network 172.16.1.0 is not included in the OSPF process.

D. The interface tunnel configuration is not correct.

Answer: A


Q93. According to RFC 2328, what is the stateful order in which an OSPF router transitions to a full adjacency with a neighbor router?

A. Down, Init, 2-Way, Exstart, Exchange, Loading, and Full

B. Down, Init, 2-Way, Exchange, Exstart, Loading, and Full

C. Down, 2-Way, Init, Loading, Exstart, Exchange, and Full

D. Down, 2-Way, Init, Exchange, Exstart, Loading, and Full

E. Down, Init, 2-Way, Loading, Exstart, Exchange, and Full

F. Down, 2-Way, Init, Exstart, Exchange, Loading, and Full

Answer: A


Q94. The administrator wants to verify the current state of the OSPF database loading process. Which show command should the administrator use? Select the best response.

A. show ip ospf [process-id] interface

B. show ip ospf neighbor

C. show ip ospf [process-id]

D. show ip ospf [process-id area-id] database

Answer: B


Q95. Refer to the exhibit. EIGRP has been configured on all routers in the network. The command metric weights 0 0 1 0 0 has been added to the EIGRP process so that only the delay metric is used in the path calculations. Which router will R1 select as the successor and feasible successor for Network A?


A. R4 becomes the successor for Network A and will be placed in the routing table. R2 becomes the feasible successor for Network A.

B. R4 becomes the successor for Network A and will be included in the routing table. No feasible successor will be selected as the advertised distance from R2 is higher than the feasible distance.

C. R2 becomes the successor and will be placed in the routing table. R4 becomes the feasible successor for Network A.

D. R2 becomes the successor and will be placed in the routing table. No feasible successor will be selected as the reported distance from R4 is lower than the feasible distance.

Answer: B


642-902 practice question

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Q96. OSPF is configured over a Frame Relay network as shown in the exhibit. All PVCs are active. However, R1 and R3 fail to see all OSPF routes in their routing tables. The show ip ospf neighbor command executed on R2 shows the state of the neighbors. What should be done to fix the problem?


A. The ip ospf network non-broadcast command should be configured on each Frame Relay interface.

B. The ip ospf network broadcast command should be configured on each Frame Relay interface.

C. The neighbor command should be configured under the OSPF routing process on all routers.

D. The ip ospf priority value on the hub router should be set to 0.

E. The ip ospf priority value on the spoke routers should be set to 0.

Answer: E


Q97. show eigrp command and related information


Answer: 




Q98. Which statement is true about an IPsec/GRE tunnel?

A. The GRE tunnel source and destination addresses are specified within the IPsec transform set.

B. An IPsec/GRE tunnel must use IPsec tunnel mode.

C. GRE encapsulation occurs before the IPsec encryption process.

D. Crypto map ACL is not needed to match which traffic will be protected.

Answer: C


Q99. In an interface, they had configured both ipv4 and ipv6 address, the ipv6 did not  start with 2002. 

Select the best response.

A. The interface can use either ipv4 or ipv6 address

B. Its dual stack 6to4 tunneling

C. Its dual stack

D. It first uses ipv4 and if it fails ipv6…

Answer: AC


Q100. An engineer has added the following configuration snippet to an implementation planning document. The configuration will be added to Router R1, whose Fa0/0 interface connects to a LAN to which Routers R2 and R3 also connect. R2 and R3 are already EIGRP neighbors with each other. Assuming the snippet shows all commands on R1 related to EIGRP authentication, which answer lists an appropriate comment to be made during the implementation plan peer review?

key chain fred

key 3

key-string whehew

interface fa0/0

ip authentication key-chain eigrp 9 fred

A. The configuration is missing one authentication-related configuration command.

B. The configuration is missing two authentication-related configuration commands.

C. Authentication type 9 is not supported; type 5 should be used insteaD.

D. The key numbers must begin with key 1, so change the key 3 command to key 1.

Answer: A