Which one of the following is true regarding VLANs?

• Two VLANs are configured by default on all Cisco switches.
• VLANs only work if you have a complete Cisco switched internetwork. No off-brand switches are allowed.
• You should not have more than 10 switches in the same VTP domain.
• VTP is used to send VLAN information to switches in a configured VTP domain.