JN0-360 · Question #361
Which fields are added to an Ethernet frame when using Q-in-Q?
The correct answer is A. S-VLAN and C-VLAN. IEEE 802.1ad is an Ethernet networking standard informally known as QinQ and is an amendment to IEEE standard IEEE 802.1Q-1998. The conventions for 802.1ad terminology typically are as follows: The inner tag is the tag which is closest to the payload portion of the frame; it is…
Question
Which fields are added to an Ethernet frame when using Q-in-Q?
Options
- AS-VLAN and C-VLAN
- BS-VLAN and D-VLAN
- CP-VLAN and D-VLAN
- DP-VLAN and C-VLAN
How the community answered
(42 responses)- A81% (34)
- B2% (1)
- C5% (2)
- D12% (5)
Explanation
IEEE 802.1ad is an Ethernet networking standard informally known as QinQ and is an amendment to IEEE standard IEEE 802.1Q-1998. The conventions for 802.1ad terminology typically are as follows: The inner tag is the tag which is closest to the payload portion of the frame; it is officially called C- TAG (Customer tag, with ethertype 0x8100). The outer tag is the one closer/closest to the Ethernet header; its name is S-TAG (Service tag, ethertype 0x88a8).
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