Q35

Consider the implementation of sliding window protocol over a lossless link, with a window size of $W$ frames, where each frame is of size $1000$ bits (including header). The bandwidth of the link is $100 \mathrm{kbps}\left(1 \mathrm{k}=10^{3}\right)$ and the one-way propagation delay is $100$ milliseconds. Assume that processing times at the sender and receiver are zero and the transmission time of acknowledgements is also zero. Which one of the following options gives the minimum size of $W$ (in number of frames) required to achieve $100\%$ link utilization?