Computer Networking
Transmission of computerised data from one location to another is called

None of these
data management
data communication
data transfer
data flow

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Computer Networking
The physical layer, in reference to the OSI model, defines

data link procedures that provide for the exchange of data via frames that can be sent and received
the interface between the X.25 network and packet mode device
None of these
All of these
the virtual circuit interface to packet-switched service

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