Unix
Which of the following commands is used to absolutely assign all permissions to the owner, read and write permissions to the group and only executable permission to the others of the file note?

chmod 167 note
chmod 4=rwx, g=rw note
chmod 761 note
chmod 671 note

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Unix
The cp command uses:

standard input file
neither standard input nor standard output file
both input and output file
standard output file

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