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CWNP CWDP-305 Exam - Topic 3 Question 13 Discussion

Actual exam question for CWNP's CWDP-305 exam
Question #: 13
Topic #: 3
[All CWDP-305 Questions]

Given: The 802.11ac APs you have selected for your public access deployment support many of the PHY and MAC enhancements offered by the

802.11n and

802.11ac amendments. The AP is configured for a single-band (2.4 GHz) and only allows 20 MHz channels. The WLAN radio in the AP is a 3x3

802.11n chip that supports two spatial streams.

What is the maximum MCS rate that could be supported by this AP?

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Suggested Answer: D

by Ciara at Nov 21, 2025, 02:53 PM

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Casie
1 day ago
A) 54 Mbps is definitely the safe bet for 20 MHz channels.
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Jennie
6 days ago
I agree with Gerald, D) 144 Mbps sounds right with two streams.
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Patrick
12 days ago
I feel like C) 108 Mbps is too high for this setup.
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Allene
17 days ago
B) 65 Mbps could be possible, but not sure with 2.4 GHz.
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Rosenda
22 days ago
I think it's A) 54 Mbps. That's the max for 20 MHz, right?
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Gerald
27 days ago
I'm leaning towards D) 144 Mbps. Seems like the best option.
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Kami
2 months ago
Nope, 54 Mbps is correct for single-band 20 MHz.
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Toshia
2 months ago
Wait, are we sure about that? Seems low for 802.11n.
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Ellen
2 months ago
I agree, 54 Mbps is the max for that setup.
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Latanya
2 months ago
It's definitely 54 Mbps for 20 MHz on 802.11n.
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Mary
2 months ago
Haha, D) 144 Mbps? What is this, the future? B) 65 Mbps is the way to go.
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Cherelle
2 months ago
B) 65 Mbps is the correct answer. The question clearly states the AP is limited to 2.4 GHz and 20 MHz channels.
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Jerlene
3 months ago
Hmm, this is a tricky one. I'm going to go with C) 108 Mbps just to be different.
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Mayra
3 months ago
D) 144 Mbps seems too high for a 2.4 GHz, 20 MHz, 2x2 MIMO AP. I'm going with B) 65 Mbps.
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Walton
3 months ago
I feel like I’ve seen 65 Mbps mentioned for single-stream setups, but with two streams, I’m leaning towards 108 Mbps as the right answer.
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Annice
3 months ago
I’m a bit confused because I thought 802.11ac could do more, but since this is limited to 2.4 GHz and 20 MHz, maybe it’s lower than I expected.
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Sean
3 months ago
I remember practicing a similar question, and I think 108 Mbps was the max for 20 MHz with two streams in 802.11n.
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Staci
3 months ago
I think the maximum MCS rate for 802.11n with two spatial streams is around 144 Mbps, but I’m not entirely sure if that applies with the 20 MHz channel limitation.
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Maybelle
4 months ago
This is a good test of my 802.11 knowledge. I feel confident I can work through this and arrive at the correct answer.
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Gracia
4 months ago
I think the answer is B) 65 Mbps. The AP is limited to 20 MHz channels and 2 spatial streams, so the maximum MCS rate would be 65 Mbps.
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Thurman
4 months ago
I'm a bit confused by all the different standards and features. Let me re-read the question and try to break it down step-by-step.
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Vivan
4 months ago
108 Mbps sounds more like it, but only with wider channels.
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Juan
4 months ago
Based on the information provided, I'm leaning towards option B) 65 Mbps as the max MCS rate. But I'll double-check my work to be sure.
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Lavonda
5 months ago
Okay, I know the AP supports 2.4 GHz and 20 MHz channels, and it's a 3x3 802.11n chip with 2 spatial streams. I think that narrows it down to a few options.
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Fernanda
5 months ago
Hmm, this seems tricky. I'll need to think through the 802.11n and 802.11ac features carefully to figure out the max MCS rate.
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