Which of the following statements is TRUE about CSMA/CD

GATE · 2005 · IT

1. A.

   IEEE 802.11 wireless LAN runs CSMA/CD protocol

2. B.

   Ethernet is not based on CSMA/CD protocol

3. C.

   CSMA/CD is not suitable for a high propagation delay network like satellite network

4. D.

   There is no contention in a CSMA/CD network

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