350-401 Question #97: Real Exam Question with Answer & Explanation

Question

Which DNS lookup does an access point perform when attempting CAPWAP discovery?

Options

• ACISCO-DNA-CONTROlLLER.local
• BCAPWAP-CONTROLLER.local
• CCISCO-CONTROLLER.local
• DCISCO-CAPWAP-CONTROLLER.local

Explanation

CAPWAP DNS Discovery Explanation

When a Cisco access point (AP) attempts to discover a Wireless LAN Controller (WLC) via CAPWAP, it performs a DNS lookup for the hostname CISCO-CAPWAP-CONTROLLER.local, which is the standardized name defined in Cisco's CAPWAP implementation - if this name is resolvable, the AP will receive the WLC's IP address and proceed with the join process.

Option A (CISCO-DNA-CONTROLLER.local) is incorrect as this relates to Cisco DNA Center branding, not the CAPWAP discovery process. Option B (CAPWAP-CONTROLLER.local) is a plausible distractor but omits the "CISCO-" prefix that Cisco specifically requires. Option C (CISCO-CONTROLLER.local) is also incorrect because it omits the critical "CAPWAP" portion of the hostname, making it an incomplete and invalid lookup name.

🧠 Memory Tip: Think of the full name as a combination of the vendor + protocol + role: CISCO (vendor) + CAPWAP (protocol) + CONTROLLER (role) = CISCO-CAPWAP-CONTROLLER.local. If you remember all three components must be present, you'll never confuse it with the distractors.

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