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CWNP CWISA-102 Exam - Topic 2 Question 29 Discussion

Actual exam question for CWNP's CWISA-102 exam
Question #: 29
Topic #: 2
[All CWISA-102 Questions]

How does OFDMA differ from OFDM?

Show Suggested Answer Hide Answer
Suggested Answer: D

Legacy Support:The primary reason to continue using older wireless technologies is the need to connect with devices that don't support newer standards (e.g., old sensors or equipment).

Other Reasons (Not as Strong):

Cost:Replacing legacy devices can be expensive.

Reliability:Some legacy technologies might be well-proven in specific settings.


by Juan at Mar 09, 2025, 09:21 AM

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Bernadine
3 months ago
I heard OFDMA has better range too, but not sure about that.
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Nina
3 months ago
OFDMA can send data to different receivers, right? That's cool!
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Nina
3 months ago
Wait, does OFDMA really use multiple radios? Sounds a bit off.
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Janessa
3 months ago
I agree, that's a big advantage over OFDM.
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Lashawn
4 months ago
OFDMA lets multiple devices share the same frequency, super efficient!
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Ma
4 months ago
I’m a bit confused about the range aspect; I thought OFDMA didn’t necessarily use multiple channels for that.
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Elfriede
4 months ago
I feel like there was a practice question about how OFDMA improves efficiency by allowing simultaneous transmissions.
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Lindsay
4 months ago
I think OFDMA is about subcarriers being able to carry data for different receivers, but I'm not entirely sure.
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Dino
4 months ago
I remember studying that OFDMA allows multiple devices to transmit at the same time, which is different from OFDM.
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Filiberto
5 months ago
Wait, I'm a bit confused. Is it true that OFDMA offers greater range by using multiple channels at once? I'm not sure if that's accurate or not. I'll need to review my notes to make sure I have the right understanding.
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Marisha
5 months ago
Okay, I think I've got this. The main difference is that in OFDMA, the subcarriers can contain data destined for different receivers, whereas in OFDM, all the subcarriers are used by a single receiver. That's an important distinction to remember.
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Larae
5 months ago
Hmm, this is a tricky one. I know OFDMA is related to OFDM, but I'm not sure exactly how they differ. I'll need to think this through carefully to make sure I understand the distinction.
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Vashti
5 months ago
I'm pretty confident I know the difference between OFDM and OFDMA. OFDMA allows multiple devices to transmit simultaneously on the same frequency, which is a key advantage over OFDM.
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Josephine
5 months ago
The way I see it, the main difference is that OFDMA allows for multiple devices to transmit at the same time on the same frequency. That's a pretty significant advantage over the single data stream in OFDM. I'm feeling good about this question.
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Jenifer
5 months ago
Wait, I'm a bit confused. Is OFDMA about using multiple channels at once for greater range? Or is that a difference from OFDM? I need to review my notes on this topic before answering.
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Phyliss
5 months ago
Okay, I think I've got it. OFDMA allows the subcarriers to contain data destined for different receivers, while OFDM has a single data stream. That's the key distinction I need to remember.
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Alex
5 months ago
Hmm, this is a tricky one. I know OFDMA and OFDM are both related to OFDM, but I'm not sure of the exact differences. I'll have to think this through carefully.
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Casie
5 months ago
I'm pretty confident I know the difference between OFDM and OFDMA. OFDMA allows multiple devices to transmit simultaneously on the same frequency, which is a key advantage over OFDM.
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Louann
10 months ago
Option D seems a bit too futuristic. I mean, who needs multiple radios when you can just use a single one and still get the job done, am I right?
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Shawnda
8 months ago
Option D might be necessary for achieving higher throughput in certain scenarios
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Tresa
9 months ago
C) OFDMA allows multiple devices to transmit simultaneously on the same frequency
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Katie
9 months ago
A) Subcarriers of OFDMA can contain data destined for a different receiver
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Emerson
10 months ago
Hmm, I'm not sure. OFDMA seems pretty complicated. I just hope I don't have to explain it to my grandparents, they still think the internet is a series of tubes!
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Nathan
8 months ago
D) OFDMA uses multiple radios to achieve higher throughput
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Brandon
8 months ago
I know, it can be confusing. But it's all about efficient data transmission.
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Yolande
8 months ago
C) OFDMA allows multiple devices to transmit simultaneously on the same frequency
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Mozell
9 months ago
A) Subcarriers of OFDMA can contain data destined for a different receiver
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Stephaine
10 months ago
I think Option B is the correct answer. OFDMA offers greater range by using multiple channels at once, right?
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Mitsue
10 months ago
Actually, OFDMA allows multiple devices to transmit simultaneously on the same frequency. So, the correct answer is C.
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Laurel
10 months ago
Yes, you are correct. OFDMA does offer greater range by using multiple channels at once.
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Leota
11 months ago
Option C is the correct answer. OFDMA allows multiple devices to transmit simultaneously on the same frequency, enabling efficient spectrum utilization.
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Brendan
11 months ago
So, OFDMA is better for scenarios with high user density then.
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Caren
11 months ago
That's correct. OFDMA is more efficient in handling multiple users compared to OFDM.
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Brendan
11 months ago
I think OFDMA allows multiple devices to transmit simultaneously on the same frequency.
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