Discuss CWNP CWNA-109 Exam Topic 5 Question 25

You administer a small WLAN with nine access point. As a small business, you do not rum a RADIUS server and use WPA2-Personal for security. Recently, you changed the passphrase for WPA2-personal in all Aps and clients. Several users are now reporting the inability to connect to the network at time and it is constrained to one area of the building. When using scanner, you see that the AP covering that area is online

AThe AP that covers the problem area requires a firmware update

BThe clients are improperly configured

CThe AP that covers the problem area has failed

DThe AP that covers the problem area is improperly configured

Suggested Answer: C

Sensors should be deployed in critical areas where WLAN performance must be high for best results when using a WLAN monitoring solution that utilizes distributed sensor devices. A WLAN monitoring solution is a system that collects, analyzes, and reports on the status and performance of a WLAN. A WLAN monitoring solution can use different methods to gather data from the WLAN, such as embedded software agents, external hardware probes, or distributed sensor devices. Distributed sensor devices are dedicated devices that are deployed throughout the WLAN coverage area to monitor the wireless traffic and environment. Distributed sensor devices can perform various functions, such as scanning the spectrum, capturing wireless frames, measuring signal quality, detecting rogue access points, testing connectivity, and generating alerts. Distributed sensor devices can provide more accurate and comprehensive data than other methods, but they also require more planning and deployment costs. Therefore, it is important to deploy sensors strategically in critical areas where WLAN performance must be high, such as high-density zones, high-priority applications, or high-security locations. By deploying sensors in critical areas, the WLAN monitoring solution can ensure optimal WLAN performance and reliability in those areas and identify and resolve any issues or problems that may arise. The other options are not the best places to deploy sensors for best results. Deploying sensors in switching closets is not effective because sensors need to be close to the wireless medium to monitor it properly. Deploying sensors every 5 meters and alongside each AP is not efficient because sensors may overlap or interfere with each other and cause unnecessary redundancy or complexity.Deploying sensors above the plenum on each floor is not practical because sensors may not capture the wireless traffic and environment accurately due to attenuation or reflection from the ceiling materials or objects.Reference:CWNA-109 Study Guide, Chapter 14: Troubleshooting Wireless LANs, page 4831

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47 comments · newest first

Nobuko 10 months ago

Wait, how can the AP be online but still have issues?

Mitzie 10 months ago

Could be the AP is misconfigured, definitely check that.

Dong 10 months ago

I think it's more likely a client config problem.

Thurman 10 months ago

Sounds like a firmware issue to me.

Yuki 11 months ago

Totally agree, a firmware update might fix this!

Caprice 11 months ago

I'm leaning towards the AP failing, but since it's online, that seems unlikely. I guess it could still be a configuration issue, though.

Mabel 11 months ago

I feel like I read something about AP configuration issues causing problems, especially after changes like a passphrase update. Could that be it?

Shayne 11 months ago

This reminds me of a practice question where client configuration was the problem. Maybe the clients just need to reconnect with the new passphrase?

Paz 11 months ago

I remember studying about firmware updates and how they can affect connectivity, but I'm not sure if that's the issue here since the AP is online.

Stephaine 12 months ago

This is a tough one, but I think I can figure it out. I'll need to carefully analyze the symptoms and consider all the options before selecting the best answer.

Georgene 12 months ago

I've got a good feeling about this one. The information provided points to an issue with the specific AP covering the problem area, so I'll start there.

Jarod 12 months ago

Okay, let's see. The key details seem to be the recent passphrase change and the issue being isolated to one area. I'll focus on troubleshooting the AP in that problem zone.

Caitlin 1 year ago

Hmm, I'm a bit unsure about this one. I'll need to review the information and try to narrow down the most likely issue.

Hollis 1 year ago

This seems like a tricky one. I'll need to carefully consider the details provided and think through the possible causes.

Reyes 1 year ago

Wait, do we have a RADIUS server or not? I'm confused, this question is giving me a headache.

Christiane 1 year ago

I bet the AP is just having a bad day and is feeling a little under the weather. Improper configuration, definitely.

Katy 1 year ago

↳ replying to Christiane

D) The AP that covers the problem area is improperly configured

Tayna 1 year ago

↳ replying to Christiane

B) The clients are improperly configured

Roxanne 1 year ago

↳ replying to Christiane

A) The AP that covers the problem area requires a firmware update

Ashley 1 year ago

Ah, the good ol' AP failure. Time to call in the tech support team and hope they don't charge an arm and a leg for a replacement.

Joanne 1 year ago

↳ replying to Ashley

D) The AP that covers the problem area is improperly configured

Gerald 1 year ago

↳ replying to Ashley

C) The AP that covers the problem area has failed

Melissa 1 year ago

↳ replying to Ashley

B) The clients are improperly configured

Lavera 1 year ago

↳ replying to Ashley

B) The clients are improperly configured

Stephaine 1 year ago

↳ replying to Ashley

A) The AP that covers the problem area requires a firmware update

Dorothy 1 year ago

↳ replying to Ashley

A) The AP that covers the problem area requires a firmware update

Gerardo 2 years ago

Sensors in the switching closets? Are you kidding me? Option A is a recipe for disaster. I'd rather hide them in the ventilation ducts, personally.

Jade 2 years ago

Hold up, did someone say 'plenum'? That's the perfect spot to hide a few extra sensors, if you know what I mean. Option D all the way!

Margret 2 years ago

I think sensors above the plenum on each floor would provide the best overall coverage.

Bobbie 2 years ago

Option B, definitely. Might as well go for the full sensor coverage, even if it means I'll have to climb a few ladders. Gotta love that hands-on work, am I right?

Laticia 1 year ago

↳ replying to Bobbie

D) The AP that covers the problem area is improperly configured

Mona 1 year ago

↳ replying to Bobbie

C) The AP that covers the problem area has failed

Jacquline 1 year ago

↳ replying to Bobbie

B) The clients are improperly configured

Stephen 1 year ago

↳ replying to Bobbie

A) The AP that covers the problem area requires a firmware update

Launa 2 years ago

Improperly configured clients? Sounds like someone needs to brush up on their network administration skills.

Bettye 2 years ago

Hmm, I'm thinking option D. Gotta keep those sensors up in the plenum, where the air is nice and crisp. Less interference, more accuracy, am I right?

Justine 2 years ago

I believe the AP that covers the problem area has failed, that's why some users can't connect.

Linwood 2 years ago

The firmware update seems like the most likely solution. Those pesky access points are always in need of a good update!

Ciara 2 years ago

I agree with Robt, it could be a firmware issue causing the connection problem.

Herminia 2 years ago

I believe sensors should be deployed in critical areas where WLAN performance must be high for best results.

Vanna 2 years ago

Option C seems like the way to go. Why waste time and money on sensors in areas where WLAN performance isn't critical? Keep it simple and targeted.

Theola 1 year ago

↳ replying to Vanna

D) The AP that covers the problem area is improperly configured

Serina 1 year ago

↳ replying to Vanna

C) The AP that covers the problem area has failed

Juan 1 year ago

↳ replying to Vanna

A) The AP that covers the problem area requires a firmware update

Robt 2 years ago

I think the AP that covers the problem area requires a firmware update.

Malcom 2 years ago

I agree with Altha, having sensors alongside each AP can provide better coverage.

Altha 2 years ago

I think sensors should be deployed every 5 meters and alongside each AP.

CWNP CWNA-109 Exam - Topic 5 Question 25 Discussion