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CWNP CWNA-109 Exam - Topic 3 Question 26 Discussion

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) S1G
B) VHT
C) OFDM
D) HT

CWNP CWNA-109 Exam - Topic 3 Question 26 Discussion

Actual exam question for CWNP's CWNA-109 exam
Question #: 26
Topic #: 3
[All CWNA-109 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?

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Suggested Answer: A

S1G is one of the 802.11 PHYs that is more likely to be used in an industrial deployment but not likely to be used in standard office deployments. This is because S1G stands for Sub-1 GHz, which means it operates in the frequency bands below 1 GHz, such as 900 MHz and 868 MHz. These bands offer better penetration and range than the higher frequency bands used by other 802.11 PHYs, such as 2.4 GHz and 5 GHz. This makes S1G suitable for industrial applications that require robust and reliable wireless communication in harsh environments, such as factories, warehouses, mines, and smart grids. S1G also supports low-power and low-data-rate devices, such as sensors, actuators, and meters, which are common in industrial Internet of Things (IoT) scenarios.VHT, OFDM, and HT are other 802.11 PHYs that are more commonly used in standard office deployments, as they offer higher data rates and capacity than S1G, but have lower range and penetration.Reference:CWNA-109 Study Guide, Chapter 3: Radio Frequency Technologies, page 751


by Janey at Apr 07, 2025, 03:16 AM

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Tyisha
8 months ago
Surprised to see S1G mentioned, thought it was niche.
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Junita
9 months ago
I think VHT could work in offices too, though.
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Galen
9 months ago
HT is more common in office setups, no doubt about it.
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Larae
9 months ago
OFDM is pretty standard everywhere, not just industrial.
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Valentin
9 months ago
S1G is definitely more suited for industrial use.
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Nakisha
9 months ago
I’m leaning towards S1G too, but I wonder if HT could also be a contender in some specialized industrial scenarios.
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Alica
10 months ago
I practiced a question similar to this, and I feel like OFDM is more standard for office use, so it’s probably not the answer here.
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Caitlin
10 months ago
I’m not entirely sure, but I remember that VHT is more common in high-density environments, so it might not be the answer.
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Veta
10 months ago
I think S1G might be the right choice since it’s designed for low-power, long-range applications, which fits industrial settings better.
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Kristin
10 months ago
I'm pretty confident on this one. The S1G PHY is designed for low-power, low-data-rate applications, which makes it a good fit for industrial IoT and automation use cases. The other options like VHT and HT are more geared towards high-throughput office and home networking.
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Ben
10 months ago
Okay, I think I've got this. Industrial deployments often require more robust and reliable wireless connections, so I'm guessing the S1G option would be the best choice here. The lower frequency and narrower bandwidth should provide better range and penetration for industrial environments.
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Georgeanna
11 months ago
Hmm, I'm a bit unsure about this one. I know the different 802.11 PHYs, but I'm not sure which one would be more likely in an industrial deployment versus a standard office. I'll have to review my notes.
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Lynda
11 months ago
This question seems to be testing my knowledge of different 802.11 PHY types and their use cases. I'll need to think carefully about the characteristics of each option.
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Annalee
1 year ago
VHT - Very High Testosterone? Hmm, I don't think that's the right answer for an industrial deployment.
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Kerrie
1 year ago
D) HT - HT is not as common in industrial deployments compared to S1G and OFDM.
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Dominque
1 year ago
C) OFDM - OFDM is also a good choice for industrial settings.
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Justine
1 year ago
A) S1G - That's correct, S1G is more likely to be used in an industrial deployment.
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Sherell
1 year ago
I'm not sure, but I think C) OFDM is also commonly used in standard office deployments.
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Rosina
1 year ago
I agree with Lynelle, S1G is designed for industrial environments with specific requirements.
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Lynelle
1 year ago
I think the answer is A) S1G because it is more suitable for industrial deployments.
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Tomas
1 year ago
OFDM, because who doesn't love a good old-fashioned orthogonal frequency division multiplexing?
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Rene
1 year ago
S1G, because it is specifically designed for industrial deployments.
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Tonja
1 year ago
OFDM, because it offers better performance in industrial settings.
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Jospeh
1 year ago
S1G? Sounds like a secret government agency! I'll go with that one.
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