Computer Networking
An error-detecting code inserted as a field in a block of data to be transmitted is known as

Checksum
Error detecting code
flow control
None of these
Frame check sequence

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Computer Networking
The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver

can do one way data transmission only
can send or receive data one at a time
cannot talk at once
None of these
can receive and send data simultaneously

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