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

1. does not increase
2. increases linearly
3. increases quadratically
4. increases exponentially

Correct answer: increases exponentially

Solution

During the slow start phase of TCP congestion control, the congestion window size doubles with each round-trip time, leading to an exponential increase in the amount of data that can be sent, which helps to quickly utilize available bandwidth.

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