COMPUTER NETWORKING

DATA LINK LAYER WIRED NETWORKS

MULTIPLE ACCESS PROTOCOLS MAC

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what is the use of ack?
A
receiver received the data
B
data lost during transmission
C
informs sender about data error
D
informs receiver that data is sent by the sender
Explanation: 

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.

There is 1 question to complete.