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Q. |
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 |
Answer» C. both csma/cd & csma/ca | |
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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