The network below uses virtual circuit packet switching. The size of a message i

Question

The network below uses virtual circuit packet switching. The size of a message is 60 octet. " the message is sent as a packet, it wa' require a header of 4 octets (so the total packet size is 64 octets). Any of the nodes below requires a transmission time of 4 psee for packet. If the original message was broken up into four equal packets at Node 3. A, how long it will take these packets to reach the Node C assuming that the virtual circuit is not setup yet (ignore both propazation delay and node delay) a. 6.25 usec b. 16 usec C. At least 6.25 sec d. At least 16 usec

Explanation / Answer

The original packet is 60 octets, if we equally divide it into four then each will be of 15 octets.

Transmission time calculation:

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