Which one of the following statements best describes how 802.1q incorporates VLAN information onto an Ethernet frame?

Which one of the following statements best describes how 802.1q incorporates VLAN information onto an Ethernet frame?
A . It uses a special EtherType to identify the Ethernet payload that contains the 802.1Q tag.
B . It inserts a 4-byte header after the source MAC address in the original Ethernet frame, which carries the VLAN information.
C . The VLAN information is identified in the Ethernet header Type/Length field.
D . It encapsulates the entire Ethernet frame and adds a 4-byte header before the destination MAC address which carries the VLAN information.

View Answer

Answer: B