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    Question

    Which layer transmits data between the systems by

    ‘packet’ level?
    A Data Link Layer Correct Answer Incorrect Answer
    B Physical Layer Correct Answer Incorrect Answer
    C Session Layer Correct Answer Incorrect Answer
    D Transport Layer Correct Answer Incorrect Answer
    E Network Layer Correct Answer Incorrect Answer

    Solution

    When data is formatted into packets, packet switching is employed. In the packet switched networks, data is sent in discrete units that have variable length. They are called as packets. All the packets belonging to a transmission may or may not take the same route. The route of a packet is decided by network layer protocols. 

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