Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 354

A large campus network has deployed two wireless LAN controllers to manage the wireless network WLC1 and WLC2 have been configured as mobility peers. A client device roams from AP1 on WLC1 to AP2 on WLC2, but the controller's client interfaces are on different VLANs. How do the wireless LAN controllers handle the inter-subnet roaming?

Answer options

• A. WLC1 marks the client with an anchor entry in its own database. The database entry is copied to the new controller and marked with a foreign entry on WLC2.
• B. WLC2 marks the client with an anchor entry in its own database. The database entry is copied to the new controller and marked with a foreign entry on WLC1.
• C. WLC1 marks the client with a foreign entry in its own database. The database entry is copied to the new controller and marked with an anchor entry on WLC2.
• D. WLC2 marks the client with a foreign entry in its own database. The database entry is copied to the new controller and marked with an anchor entry on WLC1.

Correct answer: A

Explanation

The correct answer is A because WLC1 maintains an anchor entry for the client in its database, allowing it to keep track of the client even after it roams to WLC2. The other options incorrectly assign roles or entries to WLC2, which would not perform the anchor function for a client originally associated with WLC1.