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Question: The _________ layer is responsible for the delivery of a message from one process to another.

Answer:

MCQ: The _________ layer is responsible for the delivery of a message from one process to another.

Correct Answer: A. physical

Explanation:

  • The Transport layer (Layer 4) is responsible for the delivery of a message from one process to another in the TCP/IP protocol suite.
  • The Transport layer provides end-to-end communication services between applications running on different devices. It takes data from the Application layer (Layer 7) and breaks it down into smaller units called segments. These segments are then encapsulated with Transport layer header information, including source and destination port numbers, and passed to the Network layer (Layer 3) for delivery across the network.
  • The Transport layer also provides flow control, error recovery, and congestion control mechanisms to ensure reliable data transfer between applications. The most commonly used Transport layer protocols are TCP (Transmission Control Protocol) and UDP (User Datagram Protocol).
  • Therefore, the correct answer is the Transport layer.

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