Computer Networking
The first step in troubleshooting many problems is to verify which of the following?

TCP/IP is installed correctly on the client
The BDC is operable
None of these
The subnet mask is valid
The WINS server is running

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Computer Networking
The data-link layer, in reference to the OSI model, specifies

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

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