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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?
Suggested Answer: A
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33 comments · newest first
CE
Celeste
11 months ago
Nope, it's all about CSMA/CA in wireless.
QU
Queenie
11 months ago
I thought OFDMA was supposed to help with that too?
CH
Chantell
11 months ago
Wait, isn't CSMA/CD more relevant for wired networks?
MA
Martha
11 months ago
Totally agree, CSMA/CA is key for fair access!
WI
Willard
11 months ago
It's definitely CSMA/CA that manages the airtime.
NO
Noel
12 months ago
I feel like I might be mixing things up, but CSMA/CD is for wired networks, right? So it can't be that one.
AS
Ashleigh
12 months ago
I practiced a question similar to this, and I recall that CSMA/CA is used to manage access to the medium, so that could be the answer.
AL
Allene
12 months ago
I’m not entirely sure, but I remember something about OFDMA being more relevant to newer standards, not 802.11n specifically.
CA
Cassie
1 year ago
I think it might be CSMA/CA since it deals with how stations avoid collisions in wireless networks.
AL
Aliza
1 year ago
CSMA/CA is the access method used in 802.11 networks to avoid collisions, so that's my best guess for the answer.
JI
Jimmie
1 year ago
I'm a little confused by the wording of the question. Let me re-read it and see if I can figure it out.
LA
Laurena
1 year ago
CSMA/CA makes sense to me as the mechanism that prevents stations from using all the airtime.
TA
Tasia
1 year ago
Hmm, I'm a bit unsure about this one. I'll need to think it through carefully.
MA
Margurite
1 year ago
This question seems straightforward, I think CSMA/CA is the correct answer.
RA
Raina
1 year ago
D) CSMA/CA is the way to go. It's the tried and true method for keeping all those stations from hogging the airtime. Though, I wonder if they have a special 'no cheating' mode for exam questions like this.
RO
Ronny
1 year ago
D) CSMA/CA is the way to go. It's the tried and true method for keeping all those stations from hogging the airtime. Though, I wonder if they have a special 'no cheating' mode for exam questions like this.
EU
Eugene
1 year ago
C) CSMA/CD
AL
Alaine
1 year ago
B) OFDMA
JU
Justine
1 year ago
A) 802.11 DOS prevention
LI
Lina
1 year ago
D) CSMA/CA is the way to go. It's the tried and true method for keeping all those stations from hogging the airtime.
KR
Krissy
1 year ago
C) CSMA/CD
GR
Gregg
1 year ago
B) OFDMA
LI
Lillian
1 year ago
A) 802.11 DOS prevention
VI
Virgie
1 year ago
A) 802.11 DOS prevention? That's not even a real thing! These answer choices are getting more and more ridiculous.
MI
Ming
1 year ago
B) OFDMA? Really? That's for 802.11ax, not 802.11n. Someone needs to go back and review their 802.11 standards!
UL
Ula
1 year ago
C) CSMA/CD
NI
Nickolas
1 year ago
B) OFDMA? Really? That's for 802.11ax, not 802.11n. Someone needs to go back and review their 802.11 standards!
CH
Christoper
1 year ago
D) CSMA/CA
EL
Elin
1 year ago
A) 802.11 DOS prevention
JO
Jordan
1 year ago
D) CSMA/CA, of course! That's the classic medium access control mechanism for 802.11 networks. Gotta love that Carrier Sense Multiple Access with Collision Avoidance.
LA
Lakeesha
2 years ago
I'm not sure, but I think CSMA/CA is the right choice because it helps with channel access.
GE
Georgene
2 years ago
I agree with Rene. CSMA/CA helps prevent stations from using all the airtime.
RE
Rene
2 years ago
I think the answer is D) CSMA/CA.