TCp congestion control

Question

Assume a TCP implementation over a 10Gbps link with one way dealy of 80ms if TCP receiver window size is 2MB and TCP send 1KB packet then how many RTT does it take until slow start phase open the congesion windows of 2MB. Assume no congestion and no loss of packet.

a) 11 RTT b) 10 RTT c) 12 RTT d) 13 RTT

Answer 1

The transmission from sender and receiver will look like this :

 

 

After the $11^{th}$ RTT sender will send 2MB of data and hence sender will open congesion

windows of 2MB.

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Option A, is Correct Answer.