Unix
Which command is used with file named 'note' to remove the executable permission from the user and assign read permission to the group and others?

None of these
chmod u-x, go+r note
chmod go+r, u+x note
chmod go+x, u-x note
chmod g-x, uo+r note

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Unix
The ls -l command tells

None of these
All of these
who the owner of the file is
how large the file is and when the file was last modified.
the name of the group owner of the file

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