TRANSPORT LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Positive
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Negative
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Neutral
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None of the above
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Detailed explanation-1: -NACK, or NAK, an abbreviation for negative acknowledgment or not acknowledged, is a signal used by computers or other devices to indicate that data transmitted over a network was received with errors or was otherwise unreadable.
Detailed explanation-2: -Negative Acknowledgement (NACK or NAK) is a passed signal between computers and other devices. NACK’s purpose is to express that data over a network communications protocol was missed, corrupted, or received with errors.
Detailed explanation-3: -If you use ACK, the sender will stop sending and keep its backlog until the link is restored. If you use NACK instead, then the receiver may eventually tell you that it has not received the packet that fell off the sender’s backlog since a long time, and the connection is essentially unrecoverable.
Detailed explanation-4: -(networking) To acknowledge negatively; to send a NAK signal to.