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210-255 · Question #11

210-255 Question #11: Real Exam Question with Answer & Explanation

The correct answer is C: file permissions. Linux controls file access through a permissions model assigning read, write, and execute rights to the owner, group, and others.

Question

What mechanism does the Linux operating system provide to control access to files?

Options

  • Aprivileges required
  • Buser interaction
  • Cfile permissions
  • Daccess complexity

Explanation

Linux controls file access through a permissions model assigning read, write, and execute rights to the owner, group, and others.

Common mistakes.

  • A. 'Privileges required' is a metric in the CVSS vulnerability scoring system used to rate exploit difficulty, not a Linux access control mechanism.
  • B. 'User interaction' is a CVSS scoring metric describing whether a user must participate for a vulnerability to be exploited, unrelated to Linux file access.
  • D. 'Access complexity' is a CVSS v2 metric for rating vulnerability exploitability and has no role in Linux file access control.

Concept tested. Linux file permissions and access control model

Reference. https://www.man7.org/linux/man-pages/man1/chmod.1.html

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