Which DNS hostname does an access point query for CAPWAP controller discovery?
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Correct answer: CISCO-CAPWAP-CONTROLLER.local.
Why this is the answer
An access point (AP) uses DNS to discover a Wireless LAN Controller (WLC) for CAPWAP (Control And Provisioning of Wireless Access Points) tunnel establishment. By default, the AP queries for the DNS hostname CISCO-CAPWAP-CONTROLLER.local. This is a standard mechanism where the AP resolves this hostname to the IP address of a WLC. If this DNS entry is configured on the network's DNS server, the AP can successfully find and connect to a controller. The other options are not the default, standardized DNS hostnames used by Cisco APs for CAPWAP controller discovery.
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