Linux
What command is not used to list the files chap01, chap02 and chap04?

ls chap[124]
ls - x chap0[124]
None of the listed here
ls chap*

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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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