Designing Cisco Enterprise Networks (ENSLD) — Question 147

How are wireless endpoints registered in the HTDB in a Cisco SD-Access architecture?

Answer options

• A. Border nodes first register endpoints and then update the HTDB.
• B. Fabric WLCs update the HTDB as new clients connect to the wireless network.
• C. Fabric APs update the HTDB with the clients' EID and RLOC.
• D. Fabric edge nodes update the HTDB based on CAPPWAP messaging from the AP.

Correct answer: B

Explanation

The correct answer is B because Fabric WLCs are responsible for updating the HTDB when new wireless clients connect. Option A is incorrect as border nodes do not perform this function. Option C mistakenly attributes the update role to Fabric APs, while D incorrectly assigns the update responsibility to fabric edge nodes instead of the WLCs.