Computer Networking
The X.25 standard specifies a

data bit rate
technique for start-stop data
None of these
technique for dial access
DTE/DCE interface

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

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

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