Linux
How can you add Amit, a new user, to your system?

Using useradd
All of these
None of these
Using linuxconf
Using adduser

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Linux
The physical layer of a network

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

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Linux
NIS

was formerly known as yellow pages
allows configuration-such as password and group files
is Network Information Service
is a simple directory service whose main purpose is to allow remote authentication of systems on local network systems

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