In a packet switching network, if the message size is 48 bytes and each packet…
2017
In a packet switching network, if the message size is 48 bytes and each packet contains a header of 3 bytes. If 24 packets are required to transmit the message, the packet size is ________.
- A.
2 bytes
- B.
1 byte
- C.
4 bytes
- D.
5 bytes
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Correct answer: D
Key idea: split the message evenly across packets to find payload per packet, then add the header to get the packet size.
Compute payload per packet: 48 ÷ 24 = 2 bytes.
Add header to payload to get packet size: 2 + 3 = 5 bytes.
Answer: 5 bytes.
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