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Which of the following is the multiple access protocol for channel access control?(a) CSMA/CD(b) CSMA/CA(c) Both CSMA/CD & CSMA/CA(d) HDLC |
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Answer» The correct answer is (c) Both CSMA/CD & CSMA/CA For explanation: In CSMA/CD, it deals with detection of collision after collision has occurred, whereas CSMA/CA deals with preventing collision. CSMA/CD is abbreviation for Carrier Sensing Multiple Access/Collision detection. CSMA/CA is abbreviation for Carrier Sensing Multiple Access/Collision Avoidance. These protocols are used for efficient multiple channel access. |
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