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Computer-Networks
October 4, 2023
2013 செப்டம்பர் UGC NET தாள் 1
October 4, 2023
Computer-Networks
October 4, 2023
2013 செப்டம்பர் UGC NET தாள் 1
October 4, 2023

Computer-Networks

Question 261
Which media access control protocol is used by IEEE 802.11 wireless LAN?
A
CDMA
B
CSMA/CA
C
ALOHA
D
None of the above
Question 261 Explanation: 
This layer provides the same function as the MAC layer in the wired LAN environment.
IEEE 802.11, instead of using Ethernet’s CSMA/CD, specifies a scheme called CSMA/CA.
CA stands for Collision Avoidance. (In the wireless environment, since a station may not be able to hear all other stations, CD, Collision Detection is not feasible)
Correct Answer: B
Question 261 Explanation: 
This layer provides the same function as the MAC layer in the wired LAN environment.
IEEE 802.11, instead of using Ethernet’s CSMA/CD, specifies a scheme called CSMA/CA.
CA stands for Collision Avoidance. (In the wireless environment, since a station may not be able to hear all other stations, CD, Collision Detection is not feasible)
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