You are installing a VoIP phone on the same interface as an existing computer. Which command will allow the VoIP phone to switch traffic onto its respective VLAN?

A. Switch(config-if)# switchport voice vlan 4
B. Switch(config-if)# switchport vlan voice 4
C. Switch(config-if)# switchport voip vlan 4
D. Switch(config-if)# switchport access vlan 4 voice

A. The switchport voice vlan 4 command will configure the interface to switch traffic with a COS value of 5 set by the phone to the voice VLAN of 4.