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

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Computer Networking
ICMP (Internet Control Message Protocol) is

a protocol used to monitor computers
a protocol that handles error and control messages
None of these
a TCP/IP high level protocol for transferring files from one machine to another
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address

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