Multiple choice

Director's salary details are hidden from the employee. This is called

  1. conceptual level hiding

  2. physical level data hiding

  3. external level data hiding

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

External level data hiding restricts what different users can see based on their access privileges. Director's salary hidden from employees is an example of view-level security. Conceptual and physical levels deal with logical structure and storage implementation, not user access control.

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