Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 9

Which feature mitigates fragmentation issues caused by endpoint hosts?

Answer options

• A. TCP Flow Control
• B. ICMP DF bit
• C. PMTUD
• D. TCP MSS

Correct answer: C

Explanation

The correct answer, PMTUD (Path MTU Discovery), is designed to determine the maximum transmission unit size on the network path to avoid fragmentation. TCP Flow Control, ICMP DF bit, and TCP MSS are related to data transmission but do not specifically address the prevention of fragmentation caused by endpoint hosts.