Why is CSMA/CD generally not used in modern switched full-duplex Ethernet?
Dedicated full-duplex links eliminate collisions, so collision detection is unnecessary.
In CSMA/CD, what happens after a station detects a collision?
The station sends a jam signal and enters binary exponential backoff before retrying.
In binary exponential backoff, after c collisions, the random slot count is chosen from which range before the exponent reaches its cap?
The standard backoff range is k in [0, $2^c - 1$], subject to the Ethernet exponent cap.
Which access method divides time into discrete slots and permits transmission only at slot boundaries?
Slotted ALOHA synchronizes transmissions to slot boundaries.
Compared with Pure ALOHA, Slotted ALOHA improves maximum throughput because:
Slotted ALOHA reduces the vulnerable period, increasing maximum throughput from about 18.4% to 36.8%.