ISRO | ISRO CS 2013 | Question 46

The protocol data unit for the transport layer in the internet stack is
(A) segment

(B) message

(C) datagram
(D) frame


Answer: (A)

Explanation: The protocol data unit for the transport layer in the internet stack is Segment for TCP and Datagram when UDP is used. For other layers the protocol data units are:
Network Layer: Packet
DataLink Layer: Frame
Physical Layer: stream
Application Layer: Message

Option (A) is correct.


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