Câu 95: H12-831: HCIP-Datacom-Advanced Routing & Switching Technology

Qing technology is a technology that expands the VLAN space. It achieves the function of expanding the VLAN space by adding a layer of 8D2.1Q Tag on the basis of the 8Q2.12 tag message. Which of the following statements about qinq is wrong?

1. A. Flexible QinQ can add different outer tags according to different inner tags, which is more precise in the division of user VLANs.
2. B. QinQ increases the number of VLANs to 4095*4095 — đáp án hiện tại
3. C. QinQ technology can make the private network LAN transparently transmitted on the public network
4. D. Basic QinQ is implemented based on the interface method