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 Exam CWNA-109 Topic 2 Question 20 Discussion

Actual exam question for CWNP's CWNA-109 exam
Question #: 20
Topic #: 2
[All CWNA-109 Questions]

In an 802.11n (H T) 2.4 GHz BSS, what prevents each station from using all the airtime when other client stations are actively communicating in the same BSS?

Show Suggested Answer Hide Answer
Suggested Answer: A

OFDMA is a new modulation scheme introduced in 802.11ax that allows multiple users to share the same channel by dividing it into smaller subchannels called resource units (RUs). This improves the efficiency and capacity of the WLAN by reducing contention and overhead. However, to use OFDMA, both the AP and the client must support 802.11ax and negotiate the parameters of the subchannel allocation.Therefore, the customer needs to upgrade the clients that require OFDMA to 802.11ax devices12.

The other options are not correct because they do not reflect the reality of OFDMA.Option B is incorrect because OFDMA is a mandatory feature of 802.11ax for both downlink and uplink transmissions, and all 802.11ax APs must support it1. Option C is incorrect because OFDM and OFDMA are different modulation schemes, and OFDM does not allow multiple users to share the same channel.Option D is incorrect because 802.11ac devices cannot support OFDMA through driver upgrades, as they lack the hardware and firmware capabilities to do so2.


by Donte at Dec 10, 2024, 06:18 AM

Limited Time Offer

25%

Off

Get Premium CWNA-109 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel
Georgene
50 minutes ago
I agree with Rene. CSMA/CA helps prevent stations from using all the airtime.
upvoted 0 times
...
Rene
4 days ago
I think the answer is D) CSMA/CA.
upvoted 0 times
...

Save Cancel