Multiple choice technology operating systems

For some file the access permissions are modified to 764. Which of the following

  1. Every one can read, group can execute only and the owner can read and write

  2. Every one can read and write, but owner alone can execute

  3. Every one can read, group including owner can write, owner alone can execute

  4. None
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Unix permission 764 in octal represents owner having rwx (7=4+2+1), group having rw- (6=4+2), and others having r-- (4). This means everyone can read, both owner and group can write, but only the owner can execute. The binary breakdown is 111 110 100.

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