Hi Chris, I would like to request some help with q11 of the practice midsem questions. Can I ask whether my reasoning is correct and whether my response correctly targets your question? Your assistance is greatly appreciated. Q11. Within a sliding window Data-Link layer protocol, is it meaningful for the receiver's maximum window size to be larger than the sender's maximum window size? Why or why not? My answer: I would argue that it is only meaningful to have the same window size between the sender and receiver. If the receiver's window is smaller, then they would not be able to accept all the frames sent by the sender (if the sender sends the max number of frames that it can in one transmission). So if a sender, with window size W = 5, sends frames five at a time, a receiver, whose window size W = 3, would not be able to accept all the frames at once. The receiver would only accept 3 frames and look to send the acknowledgement for the first one. If the receiver's window is larger than the sender's, then the receiver's window would never be full and so it's not meaningful to have different window sizes.