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Question 26

What is the main purpose of IP fragmentation?

To limit the number of the IP addresses in the network.

To improve the efficiency of transmissions over the network.

To reduce the number of resources required to send a large frame over the network.

To allow IP datagrams to be carried over Layer 2 networks with varying MTU sizes.

Correct Answer: D

The main purpose of IP fragmentation is to allow IP datagrams to be carried over Layer 2 networks with varying MTU sizes. IP fragmentation occurs when packets are broken into smaller fragments so they can pass through links with smaller maximum transmission units (MTUs) than the size of the original packets. This ensures that the data can be transmitted efficiently across the network despite differences in MTU sizes along the route.

Discussion

LungfulOption: D

D is correct. "IP fragmentation occurs when packets are broken up into smaller pieces (fragments) so they can pass through a link at a smaller maximum transmission unit (MTU) than the original (larger) packet size. The fragments are then put back together by the host receiving them, or destination host."