Q48

Consider a new TCP connection between a sender and a receiver. The receiver advertised window is constant at $48$ KB, the maximum segment size (MSS) is $2$ KB, and the slow start threshold for TCP congestion control is $16$ KB. Assume that there are no timeouts or duplicate acknowledgements. The number of rounds of transmission required for the congestion control algorithm of the TCP connection to reach the congestion avoidance phase is $\_\_\_\_$. (answer in integer) Note: $1 \mathrm{~K}=2^{10}$