DATA LINK LAYER WIRED NETWORKS
MULTIPLE ACCESS PROTOCOLS MAC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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receiver received the data
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data lost during transmission
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informs sender about data error
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informs receiver that data is sent by the sender
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Detailed explanation-1: -The ACK signal is important in computing (buses), telecommunications networks and data networks. As part of a communication protocol, ACK is a way for destination processes or devices to acknowledge that they have received a message from source processes or devices.
Detailed explanation-2: -ACKs often contain data, too. You may be really confusing yourself with client/server since TCP has no such idea. Yes I know that they contain data but they have the same sequence and acknowledgement numbers as the ACK packet of TCP.
Detailed explanation-3: -The receiver is typically ACKing 480 bits of data. There are cases where a receiver ACKs every other received segment. This can be seen when there are two ACKs in a row.