Recall that with the CSMA/CD protocol, the adapter waits K # 512 bit times after a collision, where K is drawn randomly. For K = 100, how long does the adapter wait until returning to Step 2 for a 10 Mbps broadcast channel? For a 100 Mbps broadcast channel?
Wait for 51,200 bit times. For 10 Mbps, this wait is
51.2 x 103 bits : 10 x 106 bps = 5.12 msec
For 100 Mbps, the wait is 512 µsec.