A.If both ports GE0/0/1 and GE0/0/2 of the switch are modified to be trunk ports, the two departments can communicate normally.

B.The switch here can be a Layer 2 switch or a Layer 3 switch because communication does not need to go through a Layer 3 gateway.

C.The administrative department and the finance department cannot exchange visits because the VLANs belonging to the two departments are different.

D.The data frame sent by the finance department carries the tag in the switch as VLAN20.

E.The data frame sent by the administrative department carries the tag in the switch as VLAN20.

A.The administrator configures the AR2200 as an FTP client to transfer VRP software through FTP.

B.The administrator configures the AR2200 as a TFTP server and transmits VRP software through TFTP.

C.The administrator configures the AR2200 as an FTP server to transmit VRP software through FTP.

D.The administrator configures the AR2200 as a TFTP client to transmit VRP software through TFTP.

A.Transport layer

B.Network layer

C.Physical layer

D.Data link layer

A.display ip routing-table

B.display interface

C.display current-configuration

D.display ip path

A.25

B.27

C.23

D.29