简答题

Drag and drop the xDSL type on the above to the appropriate xDSL description on the below.

问答题Match the xDSL type on the above to the most appropriate implementation on the below.

问答题Drag each element of the Cisco IOS Firewall Feature Set from the above and drop onto itsdescription on the below.

问答题Drag the protocols that are used to distribute MPLS labels from the above to the target area on thebelow.（Not all options will be used）

问答题Drag and drop question. The upper gives the MPLS functions， the bottom describes the planes. Drag the above items to the proper location at the below

单项选择题Study the exhibit carefully. Routers A and B are customer routers. Routers 1， 2， 3 and 4 are provider routers. The routers areoperating with various IOS versions. Which frame mode MPLS configuration statement is true？（）

A.Before MPLS is enabled， the ip cef command is only requited on routers 1 and 4
B.After MPLS is enabled， the ip cef command is only required on routers 1 and 4
C.Before MPLS is enabled， the ip cef command is only required on the Ethernet 0 interfaces ofrouters 1 and 4
D.After MPLS is enabled， the ip cef command is only required on the Ethernet 0 interfaces ofrouters 1 and 4
E.Before MPLS is enabled， the ip cef command must be applied to all provider routers