NETWORK LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When a connectionless IP protocol is in use in the OSI model, how are dropped packets detected and retransmitted?
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Connectionless acknowledgements are used to request retransmission.
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A Transport layer connection-oriented protocols keep track of the data received and can request retransmission from the sending host.
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Network layer IP protocols manage the communication sessions if connection-oriented transport services are not available.
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The best-effort delivery process guarantees that all packets that are sent are received.
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Explanation:
Detailed explanation-1: -Explanation: When connectionless protocols are in use at a lower layer of the OSI model, upper-level protocols may need to work together on the sending and receiving hosts to account for and retransmit lost data.
Detailed explanation-2: -UDP is also a transport-layer protocol and is an alternative to TCP. It provides a connectionless data transmission service between applications.
Detailed explanation-3: -A connectionless protocol refers to the communication between two network endpoints without a prior arrangement in which one network endpoint simply sends a message to the other. At the sending end, the device transmits the unit of data before ensuring that the receiving end’s device is ready.
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