A.Network layer

B.Convergence layer

C.Core layer

D.Access layer

A.The broadcast address of host A and host B are the same

B.Host A and Host B cannot obtain each other's MAC address

C.The following entry 10.0.12.5 MAC-B exists in the ARP cache of host A

D.Host A can ping host B

A.The VRP system will not adjust the sequence number, but will first match the rule permit source 20.1.1.0 0.0.0.255

B.The VRP system will adjust the sequence number of the first rule to 5 according to the configuration sequence

C.The VRP system will first match the rule by numbering in sequence deny source 20.1.1.0 0.0.0.255

D.Configuration error, the sequence number of the rules must be configured from small to large

A.True

B.False

A.False

B.True