Nokia Certified Network Associate (NCNA) — Question 49

What is the main purpose of IP fragmentation?

Answer options

• A. To limit the number of the IP addresses in the network.
• B. To improve the efficiency of transmissions over the network.
• C. To reduce the number of resources required to send a large frame over the network.
• D. To allow IP datagrams to be carried over Layer 2 networks with varying MTU sizes.

Correct answer: D

Explanation

The correct answer is D because IP fragmentation allows IP packets to be divided into smaller pieces that can fit into the varying Maximum Transmission Unit (MTU) sizes of different Layer 2 networks. Options A, B, and C do not accurately describe the purpose of IP fragmentation, as they focus on addressing limitations and resource management rather than the technical necessity of adapting packet sizes for transmission.