Computer Networking
You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use?

255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248

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

All of these
the virtual circuit interface to packet-switched service
None of these
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

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