Computer Networking
What is the purpose of flow control?

To ensure that data is retransmitted if an acknowledgment is not received.
To regulate the size of each segment.
To provide a means for the receiver to govern the amount of data sent by the sender.
To reassemble segments in the correct order at the destination device.

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Computer Networking
Parity bit is

a check bit appended to an array of binary digits to make the sum of all the binary digits.
a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
the ratio of the number of data units in error to the total number of data units
None of these
an error-detecting code based on a summation operation performed on the bits to be checked.

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