Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location US
Mob_nav_barsMENU

CWNP CWISA-102 Exam - Topic 3 Question 48 Discussion

How does OFDMA differ from OFDM?
C) OFDMA allows multiple devices to transmit simultaneously on the same frequency
A) Subcarriers of OFDMA can contain data destined for a different receiver
B) OFDMA offers greater range by using multiple channels at once
D) OFDMA uses multiple radios to achieve higher throughput

CWNP CWISA-102 Exam - Topic 3 Question 48 Discussion

Actual exam question for CWNP's CWISA-102 exam
Question #: 48
Topic #: 3
[All CWISA-102 Questions]

How does OFDMA differ from OFDM?

Show Suggested Answer Hide Answer
Suggested Answer: C

OFDM vs. OFDMA:

OFDM (Orthogonal Frequency-Division Multiplexing):Divides a channel into multiple subcarriers for data transmission.

OFDMA (Orthogonal Frequency-Division Multiple Access):Extends OFDM by allowing multiple users to share subcarriers simultaneously, improving efficiency and spectral utilization.

References

OFDM:https://en.wikipedia.org/wiki/Orthogonal_frequency-division_multiplexing

OFDMA:https://en.wikipedia.org/wiki/Orthogonal_frequency-division_multiple_access


by Wayne at Jun 18, 2026, 03:09 AM

Limited Time Offer

25%

Off

Get Premium CWISA-102 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

0/2000 characters
Submit Cancel
King
21 days ago
A is interesting too. Subcarriers for different receivers is a key difference.
upvoted 0 times
...
Kattie
26 days ago
I agree, C makes sense. It really improves efficiency in crowded networks.
upvoted 0 times
...
Donette
1 month ago
I think C is the best answer. OFDMA allows multiple devices to transmit at the same time.
upvoted 0 times
...
Florinda
1 month ago
I thought OFDM was already good enough for range, what's the deal?
upvoted 0 times
...
Lyndia
1 month ago
Yep, simultaneous transmissions are a big plus for OFDMA!
upvoted 0 times
...
Ronny
2 months ago
Wait, does OFDMA really use multiple radios? Sounds a bit much.
upvoted 0 times
...
Kasandra
2 months ago
Totally agree, that's a game changer for efficiency!
upvoted 0 times
...
Edda
2 months ago
OFDMA lets different receivers share subcarriers, right?
upvoted 0 times
...
Tenesha
2 months ago
I’m leaning towards option C since it seems to fit with what I studied about simultaneous transmissions, but I need to double-check my notes.
upvoted 0 times
...
Carma
2 months ago
I feel like OFDMA is more about efficiency with subcarriers, but I can't recall if it really uses multiple radios like option D suggests.
upvoted 0 times
...
Dong
2 months ago
I remember practicing a question about how OFDMA can send data to different receivers, so I think option A might be correct.
upvoted 0 times
...
Paz
3 months ago
I think OFDMA allows multiple devices to transmit at the same time, but I'm not completely sure if that's the main difference from OFDM.
upvoted 0 times
...

Save Cancel