Multiple choice

Which of the following is a state driven protocol running full dupex at 9600 bps to 64 kbps with subscriber networks?

  1. X.25

  2. X.21

  3. BOOTP

  4. None of the above

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

X.21 is a state driven protocol running full dupex at 9600 bps to 64 kbps with subscriber networks. X.21 is a circuit-switching protocol using synchronous.