Question

What is congestion avoidance?



a. regulating sending rate based on network capacity.



b. regulating receiving rate based on network capacity.



c. regulating sending rate based on receiver's feedback.



d. regulating receiving rate based on sender's feedback?

Answer 1

Thanks for asking the question!

ANSWER::

d. regulating receiving rate based on sender's feedback is the answer.

Extra Information - Network Congestion Algorithm is used by TCP (Transmission Control Protocol) which includes various features of an AIMD (additive increase/multiplicative decrease) .

AIMD is feedback control algorithm. The linear growth of congestion window is combined with an exponential reduction by AIMD .

Hope it helps!

Answer 2

Congestion avoidance is regulating sending rate based on network capacity.  

Option (a)

Explanation:

• 'Congestion avoidance' predicting when 'congestion is about to happen', and then decreases the speed at which hosts send data just before packets begin to be discarded. Congestion avoidance is a way to deal with lost packets.
• TCP uses a congestion window and a congestion policy to prevent congestion. If the network can not transmit the information as soon as the sender makes, it must tell the sender to slow down. In other words, besides the receiver, the network is the second entity which decides the window size of the sender.

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Congestion control and congestion avoidance

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What is congestion avoidance? a. Regulating sending rate based on network capacity. b. Regulating receiving rate based on network capacity. c. Regulating sending rate based on receiver’s feedback. d. Regulating receiving rate based on sender’s feedback.

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