TELECOMMUNICATIONS SYSTEMS
COMMUNICATION WIRELESS COMPUTING DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CSMA/CD
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CSMA/CA
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Token-passing
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Polling
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Detailed explanation-1: -802.11x standards for wireless networking all support the CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) type of communication path-sharing technology.
Detailed explanation-2: -802.11 standards use the Ethernet protocol and CSMA/CA (carrier sense multiple access with collision avoidance) for path sharing.
Detailed explanation-3: -Carrier sense multiple access/collision avoidance (CSMA/CA) is a protocol for carrier transmission in 802.11 networks. It was developed to minimize the potential of a collision occurring when two or more stations send their signals over a data link layer.
Detailed explanation-4: -CSMA/CA is generally used in wireless networks. CSMA/CD is generally used in wired networks. CSMA/CA minimizes the risk of collision. CSMA/CD reduces the recovery time.
Detailed explanation-5: -802.11ac uses wider bandwidth, MU-MIMO and beamforming technology to improve wireless speed and coverage.