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

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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 Option: D

Slow start is one of the algorithm that TCP uses to control congestion inside the network, also known as exponential growth phase, here the TCP congestion window size is increased.