Question

In IP datagram, which field is NOT needed for fragmentation and reassembly?

header checksum

fragment offset

flgs

16-bit identifier

2. If a local network utilizes NAT, then all datagrams leaving this local network have different IP addresses?

True

False

Answer 1

ANSWERS -

1) Header checksum

In IP datagram , fragmentation and reassembly need the identifical field (16 bits) with local internet address and protoco ID, flag field of 3 bits , fragment offset field to indicate starting position of fragment in packet.

So, the correct option is Header checksum

2) False

Datagrams leaving the local network which utilizes NAT will have same IP addresses.

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