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The protocol data unit (PDU) for the application layer in the Internet stack is
  • a)
    Segment
  • b)
    Datagram
  • c)
    Message
  • d)
    Frame
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The protocol data unit (PDU) for the application layer in the Internet...
The PDU for Datalink layer, Network layer , Transport layer and Application layer are frame,
datagram, segment and message respectively.
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The protocol data unit (PDU) for the application layer in the Internet...
Protocol Data Unit (PDU) for the Application Layer
The Protocol Data Unit (PDU) for the application layer in the Internet stack is a Message.

Explanation:

Application Layer:
- The application layer is the top-most layer in the OSI model and the Internet stack.
- It is responsible for providing network services directly to end-users or applications.

Protocol Data Unit (PDU):
- A PDU is a specific block of data at any layer of a network protocol stack.
- It is passed down from one layer to the next and encapsulates the necessary information for that layer to perform its function.

Application Layer PDU:
- At the application layer, the PDU is referred to as a Message.
- This PDU contains the data or information that needs to be transmitted between applications.
- It may include headers, meta-data, and the actual content of the message being sent.

Conclusion:
- In the context of the application layer in the Internet stack, the PDU is a Message, which encapsulates the data being exchanged between applications.
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The protocol data unit (PDU) for the application layer in the Internet stack isa)Segmentb)Datagramc)Messaged)FrameCorrect answer is option 'C'. Can you explain this answer?
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