Nokia Certified Network Associate (NCNA) — Question 48

Which of the following IP header fields contains information that indicates whether routers are allowed to fragment a packet?

Answer options

• A. Header checksum.
• B. Fragmentation offset.
• C. Flags.
• D. Identification.

Correct answer: C

Explanation

The correct answer is C, as the Flags field in the IP header specifically includes a bit that indicates whether fragmentation is allowed. The other options do not pertain to fragmentation control; the Header checksum is for error-checking, the Fragmentation offset indicates the position of a fragment, and the Identification field is used to identify fragmented packets.