CWNP CWNA-109 Exam - Topic 4 Question 32 Discussion

Actual exam question for CWNP's CWNA-109 exam

Question #: 32
Topic #: 4

You are troubleshooting a controller-based AP that is unable to locate the controller. DHCP is not use and the controller is located at 10.10.10.81/24 while the AP is on the 10.10.16.0/24 network. What should be inspected to verify proper configuration?

ANTP

BBOOTH

CDNS

DAP hosts file

Show Suggested Answer

Suggested Answer: C

What should be inspected to verify proper configuration isDNS. DNS stands for Domain Name System and is a service that resolves hostnames to IP addresses. In a controller-based AP deployment, DNS can be used to help the AP locate the controller by using a predefined hostname such as CISCO-CAPWAP-CONTROLLER or aruba-master. The AP sends a DNS query for this hostname and receives an IP address of the controller as a response. Therefore, if DNS is not configured properly or if there is no DNS entry for the controller hostname, the AP may not be able to locate the controller. NTP, BOOTP, and AP hosts file are not relevant for this scenario.Reference:[CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 374; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 364.

by Chantell at Aug 13, 2025, 11:03 PM

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Toshia

2 months ago

Totally agree, the subnet mismatch is a big red flag!

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Elly

2 months ago

Wait, how can the AP even find the controller without DHCP?

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Aleta

2 months ago

I think DNS might be the issue too.

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Sarah

2 months ago

Definitely check the AP hosts file!

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Jerilyn

3 months ago

The AP and controller are on different subnets.

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Adelle

3 months ago

I vaguely recall that NTP could be relevant for time synchronization, but I don't see how that would help with the controller connection issue.

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Alton

4 months ago

I'm a bit confused about the options. I thought DNS was important for resolving addresses, but does it apply here since DHCP isn't used?

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Deja

4 months ago

I think we practiced a similar question where we had to check the AP's configuration settings. Could it be the AP hosts file?

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Latanya

4 months ago

I remember something about the AP needing to know the controller's IP, but I'm not sure if it uses a hosts file or something else.

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Bambi

4 months ago

This is a good one. I'll start by checking the AP's IP address and subnet mask to make sure it's on the correct network. Then I'll verify the controller's IP address and see if the AP can ping it directly or if there's a routing issue.

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Heike

4 months ago

Okay, I think I've got this. The key is to verify the network configuration between the AP and the controller, since they are on different subnets. I'll check the routing, default gateway, and make sure the AP can reach the controller's IP address.

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Annamae

4 months ago

Hmm, I'm a bit confused here. Is this a question about NTP, DHCP, or something else? I need to re-read the question carefully to make sure I understand what's being asked.

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Pura

5 months ago

This seems like a pretty straightforward question about network connectivity. I'll focus on checking the basic network settings like IP addresses, subnets, and gateways.

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Cory

5 months ago

I agree with Nina, DNS could be the issue here.

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Nina

5 months ago

I think we should check the DNS configuration.

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Melodie

5 months ago

I'm going with B) BOOTH. You know, like the controller's boot process or something. It's gotta be a typo, right?

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Brittni

5 months ago

I think it's D) AP hosts file. Aren't we supposed to manually configure the controller's IP address on the AP?

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Dannette

2 months ago

Definitely! Without the correct entry, the AP won't find the controller.

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Jade

2 months ago

I agree, the AP hosts file is crucial for manual IP configuration.

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Lashandra

3 months ago

But what about DNS? Could that play a role too?

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Jolanda

3 months ago

DNS might help, but the hosts file is more direct for this issue.

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Virgilio

6 months ago

The correct answer is C) DNS. The AP needs to be able to resolve the controller's hostname or IP address, and that's the responsibility of the DNS server.

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Ling

5 months ago

Check the DNS configuration on the AP.

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