A.AP

B.AC

C.STA

D.Client

A.SNMPv3

B.SNMPv2c

C.SNMPv2

D.SNMPv1

A.DHCP client and DHCP server must be connected to the same switch

B.network does not allow multiple DHCP servers

C.After receiving the DHCP request or response message, the DHCP relay does not modify the message format and forwards it directly

D.If the DHCP client and the DHCP server are not on the same network segment, the DHCP relay needs to be used to forward DHCP messages

A.Only compare interface priority

B.Compare the priority of the interface first, and it is impossible to determine the better one to continue to compare the interface number, the smaller the better.

C.Only compare interface numbers

D.Compare device priority

A.The port in the Forwarding state does not learn the source MAC address of the packet

B.The port in the Forwarding state can forward data packets

C.Ports in Forwarding state can receive BPDU packets

D.The port in the Forwarding state will definitely send BPDU packets