Question

A 1-km-long, 100 Mbps CSMA/CD Local Area Network (LAN) has a propagation speed of
200 m/usec. Repeaters are not allowed in this system. Data frames are 512 bits long,
including 32 bits of header, checksum, and other overhead. The first bit slot after a
successful transmission is reserved for the receiver to capture the channel in order to
send a 32-bit acknowledgement frame. Correlate the effective data rate, excluding
overhead, assuming that there are
a) no collisions
b) collisions​

Answer 1

Answer:

A 2-km-long, 10-Mbps CSMA/CD LAN (not 802.3) has a propagation speed of 200 m/microsec. Repeaters are not allowed in this system