Which one of the following is true regarding VLANs?
A.Two VLANs are configured by default on all Cisco switches.
B.VLANs only work if you have a complete Cisco switched internetwork. No off-brand switches are allowed.
C.You should not have more than 10 switches in the same VTP domain.
D.VTP is used to send VLAN information to switches in a configured VTP domain.
Answer: D
Switches do not propagate VLAN information by default; you must configure the VTP domain. VLAN Trunking Protocol (VTP) is used to propagate VLAN information across a trunk link.