Which command can configure a switchport for VTP client mode?

The command that configures a switchport for VTP (VLAN Trunking Protocol) client mode is "vtp mode client." This command is specifically designed to set the mode of the VTP on a switch to client, which allows the switch to receive VLAN configuration information from a VTP server.

In VTP client mode, the switch cannot create, change, or delete VLANs; it can only learn VLAN information from VTP servers. This is crucial for maintaining a consistent VLAN configuration across a network, as the client switches receive updates and utilize the VLANs defined by the VTP server.

Other command options do not correctly set the switch into VTP client mode. The command "vtp client" is not syntactically correct, nor does "switchport vtp client" or "switchport mode client" pertain to VTP mode configuration. The correct command must include "vtp mode" to effectively transition the switch into the VTP client role.