单项选择题
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? （）
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? （）
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?（）