Linux
How could you install the file ipchains-1.3.9-5.i386.rpm?

rpm -qip ipchains
rpm -Uvh ipchains
None of these
rpm -e ipchains-1.3.9-5.i386.rpm
rpm -i ipchains* .i386.rpm

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Linux
The physical layer of a network

All of these
controls error detection and correction
constructs packets of data and sends them across the network
defines the electrical characteristics of signals passed between the computer and communication devices
None of these

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