Which statements about PMTUD is true?
A) GRE tunnels use PMTUD to fragment data packets by default.
B) It is used to prevent fragmentation of packets traveling across a smaller MTU link between
C) It is used to prevent fragmentation of packets at the endpoint of a TCP connection.
D) It is supported by TCP and UDP.
E) It increases the connection's send MSS value to prevent fragmentation.

Question

Quizplus · Accepted Answer

PMTUD (Path MTU Discovery) is used to determine the maximum transmission unit (MTU) size on the network path between two IP hosts, so that IP packets can be sent without fragmentation.

Which Statements About PMTUD Is True