3. Flow control is a service supported by the data link control (DLC) sublayer. a. A sliding window protocol is used between a sender and a receiver. The sender wants to send 10 packets with a 1 packet/1 ms rate. The propagation time is 2 ms for any packet, and the time out is 8 ms. The time for processing the packet is negligible. i. Assume that Go-Back-N ARQ (automatic repeat request) is used, window size is 5 and the packet #4 is lost. Complete Figure 2 below that shows packets from sender to receiver and ACK packets in the reverse direction. (3 marks) ii. Repeat (i) for Selective Reject ARQ. (3 marks) 1 ms Receiver H+ TA Sender