Cisco Exam 300-425 Topic 12 Question 105 Discussion

Actual exam question for Cisco's 300-425 exam

Question #: 105
Topic #: 12

[All 300-425 Questions]

A hospital wireless environment was designed with these characteristics:

* RF coverage

* better than -67 dBm in the 5 GHz spectrum

* RRM be used for DCA and TPC in the 2.4 GHz band

* RRM be used for DCA and TPC in the 5 GHz band

After deployment, why do many of the legacy 802.11b/g devices have difficulty maintaining connectivity?

AExcessive co-channel interference in the 2.4 GHz band exists.

BExcessive overlapping channels in the 2.4 GHz band exists.

CTPC drastically increases Tx power in the 2.4 GHz band.

DTPC drastically reduces Tx power in the 2.4 GHz band.

Show Suggested Answer

Suggested Answer: D

by Lindsey at Jan 10, 2025, 07:57 PM

Limited Time Offer

25%

Off

Get Premium 300-425 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Shawana

3 months ago

This question is a real head-scratcher. I'm torn between B and D, but I'm going to go with D. TPC must be cranking down the power on those poor 2.4 GHz devices, leaving them out in the cold. Someone should tell the hospital to invest in some signal boosters for the legacy gear. Or, you know, just replace them with something from this decade.

upvoted 0 times

Candra

2 months ago

D) TPC drastically reduces Tx power in the 2.4 GHz band.

upvoted 0 times

...

Barrie

2 months ago

C) TPC drastically increases Tx power in the 2.4 GHz band.

upvoted 0 times

...

Rashida

2 months ago

B) Excessive overlapping channels in the 2.4 GHz band exists.

upvoted 0 times

...

Shalon

2 months ago

A) Excessive co-channel interference in the 2.4 GHz band exists.

upvoted 0 times

...

Brendan

3 months ago

Hmm, I'm going with A. Excessive co-channel interference in the 2.4 GHz band exists. That's what happens when you try to cram too many devices into a narrow spectrum. Maybe they should have considered a Faraday cage for the legacy devices to keep them from interfering with the cool kids on 5 GHz.

upvoted 0 times

Kanisha

3 months ago

User 2: Yeah, it's like a traffic jam in there. Maybe they should have separated the legacy devices somehow.

upvoted 0 times

...

Ilene

3 months ago

User 1: I think A makes sense. Too many devices fighting for space in the 2.4 GHz band.

upvoted 0 times

...

Becky

3 months ago

I believe TPC drastically increases Tx power in the 2.4 GHz band, causing connectivity issues for legacy devices.

upvoted 0 times

...

Martin

4 months ago

I agree with Stevie, overlapping channels in the 2.4 GHz band can also be a problem.

upvoted 0 times

...

Ciara

4 months ago

I think D is the correct answer. TPC drastically reduces Tx power in the 2.4 GHz band, making it harder for legacy devices to maintain connectivity. The hospital must have some high-powered 5 GHz devices that are hogging all the juice!

upvoted 0 times

Carolynn

3 months ago

C: I'm not sure about that. I think A is the correct answer. Excessive co-channel interference in the 2.4 GHz band seems like a more plausible reason for the connectivity issues.

upvoted 0 times

...

Delfina

3 months ago

B: I agree with A. Having too many overlapping channels can lead to interference and make it difficult for devices to maintain connectivity.

upvoted 0 times

...

Cassie

3 months ago

A: I think B is the correct answer. Excessive overlapping channels in the 2.4 GHz band can definitely cause connectivity issues for legacy devices.

upvoted 0 times

...

Johanna

4 months ago

Clearly, the answer is B. Excessive overlapping channels in the 2.4 GHz band exist. The question mentions that RRM is used for DCA in the 2.4 GHz band, which means the access points are dynamically adjusting the channels to avoid interference. Legacy 802.11b/g devices can't handle this very well.

upvoted 0 times

Otis

3 months ago

D: I agree with B, the overlapping channels are likely causing the problem for legacy devices.

upvoted 0 times

...

Marion

3 months ago

C: TPC drastically increases Tx power in the 2.4 GHz band, causing connectivity issues.

upvoted 0 times

...

Becky

3 months ago

B: No, I believe it's actually due to excessive overlapping channels in the 2.4 GHz band.

upvoted 0 times

...

Annabelle

4 months ago

A: I think the issue is with excessive co-channel interference in the 2.4 GHz band.

upvoted 0 times

...

Stevie

4 months ago

I think the issue is with excessive co-channel interference in the 2.4 GHz band.

upvoted 0 times

...