Computer-Networks
October 4, 20232013 September UGC NET Paper 1
October 4, 2023Computer-Networks
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Question 261
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Which media access control protocol is used by IEEE 802.11 wireless LAN?
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CDMA
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CSMA/CA
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ALOHA
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None of the above
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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)
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)
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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