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+21 votes

In the slow start phase of the TCP congestion algorithm, the size of the congestion window:

  1. does not increase

  2. increase linearly

  3. increases quadratically

  4. increases exponentially

in Computer Networks by
edited by | 3.4k views

In Slow start phase, window size increases by 1 MSS for each received acknowledgement and at the end of RTT, window size increases exponentially. 
So, (D) is correct option!

3 Answers

+26 votes
Best answer

Increase is exponential in the Slow Start Phase.

Answer is option D.

edited by
1*2 = 2

2*2 = 4

4*2 = 8 , why don't we read it as linear growth?
+5 votes
In slow start cwind size increases exponentially & In Congestion avoidance cwind size increases Linearly.

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