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Computer NetworksA pure ALOHA network transmits 200-bit frames on a shared channel of 200 kbps. What is the throughput, if the system (all stations together) produces (i) 1000 frames per second and (ii) 500 frames per second?20217mComputer NetworksSuppose that the stop-and-wait protocol is used on a link with a bit rate of 64 kilobits per second and 20 milliseconds propagation delay. Assume that the transmission time for the acknowledgment and the processing time at nodes are negligible. What is the minimum frame size in bytes to achieve a link utilization of at least 50%.20167mComputer NetworksThe maximum window size for data transmission using the selective reject protocol with n-bit frame sequence numbers is (i) 2^n (ii) 2^(n-1) (iii) 2^n - 1 (iv) 2^(n-2)20212mComputer NetworksStation A needs to send a message consisting of 9 packets to Station B using a sliding window (window size 3) and go-back-n error control strategy. All packets are ready and immediately available for transmission. If every 5th packet that A transmits gets lost (but no packets from B ever get lost), then what is the number of packets that A will transmit for sending the message to B? (i) 12 (ii) 14 (iii) 16 (iv) 1820212m