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Computer NetworksExplain random access protocol. Differentiate between pure ALOHA and slotted ALOHA.20207mComputer 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 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) 1820212mComputer NetworksIn pure ALOHA, the vulnerable time is ______ the frame transmission time. (i) the same as (ii) two times (iii) three times (iv) None of the above20202m
PreviousExplain why Slotted ALOHA approach performs better than pure ALOHA approach?NextConsider a sender S and a receiver R that are connected on a network, where the one-way latency is 250 milliseconds. The data rate of that network is 32000 bits per second, and size of each frame in that network is 1000 bits. Assume that S and R are using sliding windows with Selective Repeat. How large must the sliding window for S be in order to maximize the utilization?