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When we use slow start algorithm ,the size of CW increases ...............until it reaches threshold.

A)Additively

B)Multiplicatively

C)Exponentially

D) NONE

4 Answers

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It increases exponentially. Suppose initial frame is 1KB, so it will send 2KB,4KB,8KB and so on until it reaches the threshold.
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→ In the slow-start algorithm, the size of the congestion window increases exponentially until it reaches a threshold.
→ ​TCP slow start is an algorithm which balances the speed of a network connection. Slow start gradually increases the amount of data transmitted until it finds the network’s maximum carrying capacity.
​→ TCP slow start is one of the first steps in the congestion control process. It balances the amount of data a sender can transmit (known as the congestion window) with the amount of data the receiver can accept (known as the receiver window).
→ The lower of the two values becomes the maximum amount of data that the sender is allowed to transmit before receiving an acknowledgment from the receiver.
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During slow start phase congestion window size increases exponentially. So the correct option C

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