A sanitation department is replacing analog phones with IP phones that share a cable with data PCs. How should the access switch typically separate voice and data traffic on that single drop?
Select an answer to reveal the explanation.
Short Explanation
One cable, two jobs—like a dual-lane driveway. The voice VLAN is the phone’s tagged lane; the PC stays in the untagged data lane. That auxiliary VLAN pattern keeps desk phones and PCs sharing copper without sharing one broadcast domain.
Full Explanation
Cisco access ports commonly use a data access VLAN plus a voice VLAN: the IP phone tags voice frames with the auxiliary VLAN while the attached PC uses the untagged/access VLAN. CDP or LLDP often informs the phone of the voice VLAN. A single shared VLAN conflates broadcast domains; a pure L3 port is not the usual desktop phone pattern; dual cabling is optional but not required when voice VLAN is configured correctly.