Computer Networking
The DoD model (also called the TCP/IP stack) has four layers. Which layer of the DoD model is equivalent to the Network layer of the OSI model?

Host-to-Host
Internet
Application
Network Access

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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
None of these
All of these
the virtual circuit interface to packet-switched service
the interface between the X.25 network and packet mode device

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