Refer to the exhibit. A network associate has configured OSPF with the command:
City(config-router)# network 192.168.12.64 0.0.0.63 area 0
After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? （）

单项选择题Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?（）

A.link bandwidth
B.hop count
C.link cost
D.administrative distance
E.link delay

单项选择题If IP routing is enabled, which two commands set the gateway of last resort to the default gateway? （）

A.ip default-gateway 0.0.0.0
B.ip route 172.16.2.1 0.0.0.0 0.0.0.0
C.ip default-network 0.0.0.0
D.ip default-route 0.0.0.0 0.0.0.0 172.16.2.1
E.ip route 0.0.0.0 0.0.0.0 172.16.2.1

多项选择题Refer to the exhibit. The two exhibit devices are the only Cisco devices on the network. The serial network between the two devices has a mask of 255.255.255.252. Given the output that is shown, what three statements are true of these devices? （）

A.The Manchester serial address is 10.1.1.1
B.The Manchester serial address is 10.1.1.2
C.这个Manchester路由器串口地址为：10.1.12
D.The London router is a Cisco 2610.
E.The Manchester router is a Cisco 2610.
F.The CDP information was received on port Serial0/0 of the Manchester router.
G.The CDP information was sent by port Serial0/0 of the London Router.

单项选择题Refer to the exhibit:The technician wants to upload a new IOS in the router while keeping the existing IOS. What is the maximum size of an IOS file that could be loaded if the original IOS is also kept in flash?（）

A.3MB
B.4MB
C.5MB
D.7MB
E.8MB

单项选择题Which command is used to display the collection of OSPF link states?（）

A.show ip ospf lsa database
B.show ip ospf link-state
C.show ip ospf neighbors
D.show ip ospf database