Which statement about using native VLANs to carry untagged frames is true?

Which statement about using native VLANs to carry untagged frames is true?
A . Cisco Discovery Protocol version 2 carries native VLAN information, but version 1 does not.
B . Cisco Discovery Protocol version 1 carries native VLAN information, but version 2 does not.
C . Cisco Discovery Protocol version 1 and version 2 carry native VLAN information.
D . Cisco Discovery Protocol version 3 carries native VLAN information, but versions 1 and 2 do not.

View Answer

Answer: A

Explanation:

Cisco Discovery Protocol (CDP) version 2 passes native VLAN information between Cisco switches. If you have a native VLAN mismatch, you will see CDP error messages on the console output. Reference: http://www.ciscopress.com/articles/article.asp?p=29803&seqNum=3