Multiple choice technology operating systems

The numeric permission "400" stands for?

  1. read by anybody

  2. read by other

  3. read by owner

  4. read by group
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C Correct answer
Explanation

Permission 400 in octal notation means: 4 (read) for owner, 0 for group, 0 for others. This translates to read-only access exclusively for the file owner. In symbolic notation, this is 'r--------' - only the owner can read the file, and no one (including the owner) can write to it. This is commonly used for sensitive read-only configuration files.

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