1) Draw a timeline diagram for the sliding window algorithm with SWSERWS = 3 frames that shows the loss of frame 84. You may use a timeout interval of 2RTT. You may also assume selective repeat where the receiver acknowledges all frames (in/out of order) and buffers them until all frames in a window are received. SPts Sender Receiver 2. Why can you not use CSMA/CD to solve the hidden terminal problem? 3pts