CCNA 640-802 V14 题库（36-40）

36. Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the followingare true? (Choose two.)

A. Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.

B. Router C will use ICMP to inform Router B that Host 2 cannot be reached.

C. Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached.

D. Router C will send a Destination Unreachable message type.

E. Router C will send a Router Selection message type.

F. Router C will send a Source Quench message type.

Answer: AD

37. Refer to the exhibit. Assuming that the router is configured with the default settings, what type of routerinterface is this?

A. Ethernet

B. FastEthernet

C. Gigabit Ethernet

D. asynchronous serial

E. synchronous serial

Answer: B

38. On point-to-point networks, OSPF hello packets are addressed to which address?

A. 127.0.0.1

B. 172.16.0.1

C. 192.168.0.5

D. 223.0.0.1

E. 224.0.0.5

F. 254.255.255.255

Answer: E

39. While troubleshooting a connectivity problem, a network administrator notices that a port status LED on aCisco Catalyst series switch is alternating green and amber. Which condition could this indicate?

A. The port is experiencing errors.

B. The port is administratively disabled.

C. The port is blocked by spanning tree.

D. The port has an active link with normal traffic activity.

Answer: A

40. Refer to the exhibit. The network shown in the exhibit is running the RIPv2 routing protocol. The network hasconverged, and the routers in this network are functioning properly. The FastEthernet0/0 interface on R1 goesdown. In which two ways will the routers in this network respond to this change? (Choose two.)

A. All routers will reference their topology database to determine if any backup routes to the 192.168.1.0 network are known.

B. Routers R2 and R3 mark the route as inaccessible and will not accept any further routing updates from R1 until their hold-down timers expire.

C. Because of the split-horizon rule, router R2 will be prevented from sending erroneous information to R1 aboutconnectivity to the 192.168.1.0 network.

D. When router R2 learns from R1 that the link to the 192.168.1.0 network has been lost, R2 will respond bysending a route back to R1 with an infinite metric to the 192.168.1.0 network.

E. R1 will send LSAs to R2 and R3 informing them of this change, and then all routers will send periodic updatesat an increased rate until the network again converges.

Answer: CD