UGC NET CSE | January 2017 | Part 3 | Question: 28

Question

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

Comments

Total size of the data including header = 3x24 + 48 = 120

Number of packets = 24.

So, size of each packet = (120/24)= 5

Answer 1

Suppose we have X byte of data in packet

so packet size=x+3

and number of packet's(n=24) can be find

n=48/X

X=48/24

X=2 Bytes ,so Packet size is 2 of Bytes

Comments

packet size will be 5 not 2

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@ jatinkumar  if you include header in a packet size the yes it is 5 bytes.

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You forgot to add the header value to your packet size. It must be 2+3=5