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Exam 350-401 topic 1 question 75 discussion

Actual exam question from Cisco's 350-401
Question #: 75
Topic #: 1
[All 350-401 Questions]

What does the LAP send when multiple WLCs respond to the CISCO-CAPWAP-CONTROLLER.localdomain hostname during the CAPWAP discovery and join process?

  • A. unicast discovery request to the first WLC that resolves the domain name
  • B. broadcast discovery request
  • C. join request to all the WLCs
  • D. unicast discovery request to each WLC
Show Suggested Answer Hide Answer

Suggested Answer: A


Highly Voted 1 month, 3 weeks ago
Answer should be D; let's look: https://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/107606-dns-wlc-config.html#anc5
upvoted 8 times
Most Recent 4 days, 7 hours ago
Definitely D
upvoted 1 times
1 week ago
D. unicast discovery request to each WLC is the correct answer
upvoted 2 times
2 weeks, 4 days ago
The correct answer is D.
upvoted 2 times
2 weeks, 6 days ago
A is ok The Lightweight AP (LAP) can discover controllers through your domain name server (DNS). For the access point (AP) to do so, you must configure your DNS to return controller IP addresses in response to CISCO-LWAPP-CONTROLLER.localdomain, where localdomain is the AP domain name. When an AP receives an IP address and DNS information from a DHCP server, it contacts the DNS to resolve CISCO-CAPWAP-CONTROLLER.localdomain. When the DNS sends a list of controller IP addresses, the AP sends discovery requests to the controllers. The AP will attempt to resolve the DNS name CISCO-CAPWAP-CONTROLLER.localdomain. When the AP is able to resolve this name to one or more IP addresses, the AP sends a unicast CAPWAP Discovery Message to the resolved IP address(es). Each WLC that receives the CAPWAP Discovery Request Message replies with a unicast CAPWAP Discovery Response to the AP. Reference: https://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/107606-dns-wlc-config.html
upvoted 2 times
3 weeks, 2 days ago
Should be D...
upvoted 3 times
1 month ago
Answer is D
upvoted 4 times
1 month, 3 weeks ago
I think A is correct "If two controllers have the same excess capacity, then send the join request to the first controller that responded to the discovery request with a discovery response." https://www.cisco.com/c/en/us/support/docs/wireless/5500-series-wireless-controllers/119286-lap-notjoin-wlc-tshoot.html#anc4
upvoted 2 times
1 month ago
Best answer is D. The question is about discovery process, not join proccess.
upvoted 3 times