Which of the following statements about IPv4 fragmentation is/are TRUE?

Let us evaluate each statement regarding IPv4 fragmentation and reassembly:

• Statement (A) is FALSE and Statement (B) is TRUE: In IPv4, fragmentation can occur either at the source host or at any intermediate router along the path when the datagram size exceeds the outgoing interface's Maximum Transmission Unit (MTU).

• Statement (C) is TRUE and Statement (D) is FALSE: Reassembly of fragmented IP datagrams is performed exclusively at the final destination host. Intermediate routers do not reassemble fragments because individual fragments may follow different paths and intermediate reassembly would introduce unnecessary buffering and processing overhead.

Hence, statements (B) and (C) are TRUE.