The administrator has configured the AR2200. Which of the following descriptions about the configuration information is correct ()

When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header? ()

AAA. Which of the following is not included? ()

As shown in the figure, the network administrator creates VLAN2 on the SWA and SWB, and configures the ports connecting the hosts on the two switches as Access ports and assigns them to VLAN2.
Configure G0/0/1 of SWA and G0/0/2 of SWB as trunk ports to allow all VLANs to pass. To achieve normal communication between the two hosts, you also need.

When using the FTP protocol to upgrade the router software, the transmission mode should be selected ()