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

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

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
HDLC (High-level Data Link Control) is

None of these
a very common bit-oriented data link protocol issued by ISO.
a method access control technique for multiple-access transmission media
network access standard for connecting stations to a circuit-switched network
a method of determining which device has access to the transmission medium at any time

ANSWER DOWNLOAD EXAMIANS APP