In the Layer 2 inter-TAC roaming scenario, the STA belongs to the same subnet before and after roaming. The FAP/FAC forwards the messages of the Layer 2 roaming users in the same way as the ordinary newly online users. The messages are directly forwarded in the local network of the FAP/FAC, without the need to be forwarded back to the HAP/HAC through the inter-WAC tunnel.

• A. True
• B. False

In the WAC+FITAP networking mode, which option field of the DHCP protocol can the AP use to discover the WAC device?

• A. option 82
• B. option 148
• C. option 43
• D. option 12

In the hotel wireless coverage scenario, which of the following descriptions of the guest room scenario network plan are correct? (Multiple choice)

• A. When installing RU or panel AP in a room, it is usually installed under the table using 86 box or wall mounting.
• B. APs outside the room that cover the corridor should be installed away from the door of the guest room.
• C. If the guest rooms are separated by solid walls, it is recommended to place one RU or panel AP in each room to ensure user experience.
• D. If the guest rooms are separated by solid walls, APs can be deployed at equal intervals in the corridor to save costs.

On a WLAN, channel operating bandwidths can be classified as 40 MHz+, 40 MHz-, 80 MHz,
80+80 MHz, and 160 MHz based on channel bonding modes. Which of the following statements are true about the operating bandwidth of channels? (Choose all that apply.)

• A. For a 40 MHz+ channel, the center frequency of the primary channel is higher than that of the secondary channel.
• B. Two adjacent channels are bonded into channels of all types, excluding 80+80 MHz channels.
• C. One of the four or eight 20 MHz channels is randomly selected as the primary channel in an 80 MHz or 160 MHz channel.
• D. For a 40 MHz-channel, the center frequency of the primary channel is higher than that of the secondary channel.