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Which option TPID 802.1q tag?
A. 0x0806
B. 0x8100
C. 0x0800
D. 0x888E
Correct Answer: B
Explanation/Reference:
TPID
The QinQ frame contains the modified tag protocol identifier (TPID) value of VLAN Tags. By default, the VLAN tag uses the TPID field to identify the protocol type of the tag. The value of this field, as defined in IEEE 802.1Q, is 0x8100.
Link: http://www.cisco.com/c/en/us/support/docs/lan-switching/8021q/17056-741-4.html
