CCNA final2 部分题目.doc

3 窗体顶端 In which situation would a default static route be recommended? when connecting an edge router to the Internet when variable length subnet masking is in effect when there is more than one valid route for a destination network when a destination network has a larger mask than any routes in the routing table 窗体底端 6 窗体顶端 An administrator is configuring Router1 so that it can connect to Router2 by using IP. Which protocol can be used by Router1 to determine the IP address of Router2 when they are directly connected and only Layer 2 connectivity exists between them? ARP CDP ICMP Telnet 窗体底端 7 窗体顶端 Refer to the exhibit. The IP addresses on all interfaces on router R1 were configured before the OSPF protocol had been enabled on the router. No OSPF router ID was manually configured. Which IP address will be selected by the router as an OSPF router ID? 10.10.10.1 172.16.1.1 172.16.2.1 192.168.1.1 192.168.100.1 9 窗体顶端 Which prompt is used to allow a user to change the IP address of an interface on a router? Router Router# Router(config)# Router(config-if)# 窗体底端 10 窗体顶端 Which two statements are true for OSPF Hello packets? (Choose two.) They are used for dynamic neighbor discovery. They are used to maintain neighbor relationships. They are used to determine the complete network topology. They are used with timers to elect the designated router with the fastest link. They are used to negotiate correct parameters among neighboring interfaces. 窗体底端 11 窗体顶端 Refer to the exhibit. Host A is unable to access the Internet, and troubleshooting has revealed that this is due to an addressing problem. What is incorrectly configured in this network? the IP address of the Fa0/0 interface of R1 the subnet mask of the S0/0/0 interface of R1 the IP address of the S0/0/0 interface of R1 the subnet mask of the S0/0/0 interface of R2 窗体底端 12 窗体顶端 Refer to the exhibit. R1 is configured properly for a single area OSPF, and R2 has been recently