For data communications to occur, the communicating devices must be part of a communication system made up of a combination of?
A. WAN and LAN
B. Hardware and software
C. Full duplex and half duplex
D. All of the above
Answer: Option B
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I'm not getting that why all of the above is not the answer?
For the occurrence of data communication, there is a need for certain network hardware and networking software to enable data communication