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CWNP CWDP-305 Exam - Topic 2 Question 23 Discussion

Assume that your network operates in a regulatory domain that allows use of the entire 5 GHz space allowed in the 802.11ac amendment. In yourupcoming802.11ac deployment, you would like to take advantage of the performance improvements that result from channel bonding. However, afterextensive testing, you have determined that your mission-critical WLAN should not use channels requiring DFS support.Given those two criteria (enable channel bonding and disable DFS channels), in the 5 GHz spectrum, how many non-overlapping 40 MHz channelswill your system be able to use?
C) 4
A) 2
B) 3
D) 6

CWNP CWDP-305 Exam - Topic 2 Question 23 Discussion

Actual exam question for CWNP's CWDP-305 exam
Question #: 23
Topic #: 2
[All CWDP-305 Questions]

Assume that your network operates in a regulatory domain that allows use of the entire 5 GHz space allowed in the 802.11ac amendment. In your

upcoming

802.11ac deployment, you would like to take advantage of the performance improvements that result from channel bonding. However, after

extensive testing, you have determined that your mission-critical WLAN should not use channels requiring DFS support.

Given those two criteria (enable channel bonding and disable DFS channels), in the 5 GHz spectrum, how many non-overlapping 40 MHz channels

will your system be able to use?

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Suggested Answer: C

by German at Jul 21, 2026, 11:28 PM

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Lenna
4 days ago
Definitely 3, no DFS means fewer options.
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Kristel
9 days ago
I thought it was 4 channels, but I guess not.
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Werner
14 days ago
Wait, are we sure about that? Seems low for 5 GHz.
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Cecilia
19 days ago
Totally agree, 3 is the right answer!
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Jeniffer
24 days ago
You can use 3 non-overlapping 40 MHz channels.
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Melita
29 days ago
I feel like the answer might be 3, but I need to double-check how DFS restrictions affect the channel count.
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Sheridan
1 month ago
If I remember correctly, there are a few non-overlapping channels in the 5 GHz range, but I can't quite recall the exact number.
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Dominic
1 month ago
I think we practiced a similar question, and I recall that there are a limited number of channels available when avoiding DFS.
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Glen
1 month ago
I remember studying that in the 5 GHz band, we can use 40 MHz channels, but I’m not sure how many are non-overlapping without DFS.
upvoted 0 times
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