A.Services can be quickly restored when a fault occurs.

B.Faults seldom occur.

C.Faults never occur.

D.Services can only be manually restored when a fault occurs.

A.Configure only one gateway for the PC which is the IP address of Master.

B.Configure only one gateway for the PC which is the IP address of virtual router.

C.Configure two gateways for the Pc which are the IP addresses of Master and Slave.

D.Configure three gateways for the PC which are the IP addresses of Master, Slave and virtual router.

A.The secondary optimal path is selected.

B.Improve the network reliability

C.Some VLAN paths are unreachable

D.Traffic cannot be load balanced.

A.Packets with the same FEC are processed differently on a MPLS network.

B.FECs can be divided flexibly by source IP address, destination IP address, source port, destination port, protocol type, VPN, or any combinations of them.

C.MPLS classifies packets with the same forwarding processing mode into one FEC.

D.One FEC has only one unique label marker.

A.4

B.8

C.7

D.6