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An IP datagram of total length 1,500 bytes (including a 20-byte header) is sent over a link whose MTU is 576 bytes. What is the value of th…

2324Medium DSSSB TGT Computer Science 0 replies 1 views

An IP datagram of total length 1,500 bytes (including a 20-byte header) is sent over a link whose MTU is 576 bytes. What is the value of the fragment-offset field in the last fragment?

A185
B138
C69
D1,104

Correct answer: B

Explanation

Each fragment can carry 556 data bytes, rounded down to a multiple of 8, i.e. 552; the last fragment starts at 2 × 552 = 1,104 bytes and 1,104 / 8 = 138.

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