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CWNP CWNA-109 Exam - Topic 2 Question 35 Discussion

Actual exam question for CWNP's CWNA-109 exam
Question #: 35
Topic #: 2
[All CWNA-109 Questions]

An RF signal sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?

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Suggested Answer: A

Refraction is the bending of an RF signal as it passes through a medium with a different density than free space. This can cause the signal to change its direction and speed, which can affect the accuracy and reliability of wireless communication.Refraction is influenced by factors such as temperature, humidity, and atmospheric pressure12.Reference:CWNA-109 Study Guide, Chapter 2: Radio Frequency Fundamentals, page 72;CWNA-109 Study Guide, Chapter 2: Radio Frequency Fundamentals, page 67.


by Hortencia at Nov 25, 2025, 11:36 PM

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Paris
1 day ago
Scattering is different. It’s more about spreading.
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Tresa
6 days ago
Not so sure. What about C) Scattering?
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Lisbeth
12 days ago
Agreed! Refraction fits the bending concept.
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Demetra
17 days ago
I think it's A) Refraction. Sounds right.
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Gerald
22 days ago
Reflection could be a contender, but refraction is the right term!
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Magda
27 days ago
I thought it might be scattering, but refraction makes sense.
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Elke
2 months ago
Wait, is it really just refraction? Seems too simple.
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Billy
2 months ago
Haha, "Warping"? What is this, Star Trek? Refraction is the way to go.
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Rupert
2 months ago
Reflection? Nah, that's when the signal bounces off the material, not bends through it.
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Devorah
2 months ago
Warping? Really? That sounds more like something out of a sci-fi movie.
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Dorothy
2 months ago
I'm going with Scattering. That's what happens when the signal interacts with the material, right?
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Valentin
2 months ago
Refraction, of course! That's the term for when an RF signal bends as it passes through a material.
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Willow
3 months ago
I think it's refraction too, but I remember there was a question about reflection that confused me. I hope I don't mix them up on the exam!
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Joseph
3 months ago
I definitely recall refraction being mentioned in class, but I keep mixing it up with reflection. I hope I remember the right one!
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Dylan
3 months ago
I'm not entirely sure, but I feel like it could also be scattering? I remember a practice question that mentioned how signals can spread out in different directions.
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Annice
3 months ago
Refraction, that's the one! I remember the professor talking about how radio waves can bend when they pass through things like the atmosphere or buildings. Gotta keep that in mind for the exam.
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Renato
3 months ago
Okay, let me think this through. Reflection is when the wave bounces off the surface, and scattering is when it gets scattered in different directions. I'm going to go with refraction for this one.
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Rozella
3 months ago
I'm not totally sure about this one. Is it scattering? I know that has something to do with waves interacting with materials. Refraction sounds right too though.
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Eleni
4 months ago
It's called refraction!
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Ardella
4 months ago
I think the term we're looking for is refraction. I remember studying how light and RF signals change direction when they pass through different materials.
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Catherin
4 months ago
Totally agree, it's definitely A.
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Celeste
5 months ago
Refraction, definitely. I remember learning about that in my physics class - it's when the wave changes speed and direction as it goes from one material to another.
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Mel
5 months ago
Hmm, this seems like a tricky one. I think it might be refraction, since that's when light or other waves bend as they pass through a different medium.
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Franklyn
4 months ago
I agree, refraction sounds right!
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Sage
4 months ago
Reflection could be a contender too, but not quite.
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