Two broad categories of congestion control are(a) Open-loop and Closed-loop(b) Open-control and Closed-control(c) Activecontrol and Passive control(d) Active loop and Passive loopThis question was posed to me in my homework.My doubt is from Congestion Control topic in chapter Frame Relay of Computer Network

Two broad categories of congestion control are(a) Open-loop and Closed

1.	Two broad categories of congestion control are(a) Open-loop and Closed-loop(b) Open-control and Closed-control(c) Activecontrol and Passive control(d) Active loop and Passive loopThis question was posed to me in my homework.My doubt is from Congestion Control topic in chapter Frame Relay of Computer Network
Answer» 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.

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