Question

Two broad categories of congestion control are

(a) Open-loop and Closed-loop

(b) Open-control and Closed-control

(c) Active  control and Passive control

(d) Active loop and Passive loop

This question was posed to me in my homework.

My doubt is from Congestion Control topic in chapter Frame Relay of Computer Network

Answer 1

Correct choice is (a) Open-loop and Closed-loop

The explanation is: Open loop congestion control techniques are used to prevent congestion before it even happens by enforcing certain policies. Closed loop congestion control techniques are used to treat congestion after it has happened.