问题:
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 router
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?()
● 参考解析
本题暂无解析