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Exam CWNA-107 topic 1 question 76 discussion

Actual exam question from CWNP's CWNA-107
Question #: 76
Topic #: 1
[All CWNA-107 Questions]

Which one of the following 802.11 PHYs is more likely to be used in an industrial deployment but not likely to be used in standard office deployments?

  • A. SIG
  • B. VHT
  • C. OFDM
  • D. HT
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Suggested Answer: B 🗳️
by ericau at July 22, 2019, 3:20 a.m.

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VladeDivac
Highly Voted 4 years ago
The option would be S1G, which is oriented for either industrial automation, IoT, monitoring and contol scenarios.
upvoted 6 times
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EAG
Most Recent 3 years, 7 months ago
Answer is A. All other 802.11 PHYs operate in either the 2.4GHz or the 5GHz frequency bands, which are used for office deployments.
upvoted 1 times
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staffo
4 years, 1 month ago
Plus you would use VHT (802.11ac) and 5GHz in an office environment.
upvoted 1 times
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staffo
4 years, 1 month ago
I think it is D as you would think an industrial area would mean long distances and wireless devices that may not support 802.11ac. Therefore you would 2.4GHz and therefore HT.
upvoted 1 times
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snickers6910
4 years, 3 months ago
OFDM is not a PHY rate, so the only real correct answer is HT
upvoted 1 times
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Superhappyfuntime
4 years, 4 months ago
SIG isn't a listed PHY modulation and HT/VHT are currently used in office, so this only leaves OFDM
upvoted 2 times
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ericau
5 years, 5 months ago
Should be A
upvoted 3 times
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