Question: A computer system has a 7 - layer protocol hierarchy. Applications generate messages of length 5 0 0 bytes. At the data link layer, a

A computer system has a 7-layer protocol hierarchy. Applications generate messages of
length 500 bytes. At the data link layer, a 30-byte header and 4-byte trailer are added. At
the remaining 6 layers, a 20-byte header is added. What fraction of the network
bandwidth is filled with headers?
A computer system has a 7-layer protocol hierarchy. Applications generate messages

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