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7. Consider five serial connected nodes A, B, C, D, E and that 100 bytes of data are supposed to be transmitted from node A to E using a protocol that requires packet headers to be 20 bytes long (a) Ignore tp, t, and all control signals; and sketch and calculate total tf in terms mit the data for cases in which the data is con of byte-time to trans verted into 1 packet, 2 packets, 5 packets, and 10 packet:s. Put all the results obtained from part (a) together in one plot and estimate where the plot approximately shows the minimum delay (no mathematical work is needed, just indicate the location of the lowest delay transmission on the plot)