Cisco Exam Questions

which mechanism provides the VLAN ID?

When an IP phone boots up, which mechanism provides the VLAN ID?

A.
CDP

B.
DNS

C.
DHCP

D.
TFTP

E.
Option 150

Explanation:
If a voice VLAN ID is configured on the switch it will respond to the received Cisco Discovery
Protocol message
and inform the Cisco IP phone about the voice VLAN ID