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LFCA · Question #13

Which of the following is a non-functional requirement?

The correct answer is D. The system must adhere to all security requirements and regulations. Non-functional requirements describe how a system performs a function, rather than what functions it performs, such as adherence to security standards.

Submitted by thandi_sa· May 4, 2026Security

Question

Which of the following is a non-functional requirement?

Options

  • AThe system must allow the administrator to disable user accounts.
  • BThe system must provide the user the option to enable multi-factor authentication.
  • CThe system must allow the user to upload a profile image.
  • DThe system must adhere to all security requirements and regulations.

How the community answered

(45 responses)
  • A
    4% (2)
  • B
    7% (3)
  • C
    2% (1)
  • D
    87% (39)

Why each option

Non-functional requirements describe how a system performs a function, rather than what functions it performs, such as adherence to security standards.

AThe system must allow the administrator to disable user accounts.

This describes a specific functional capability for an administrator.

BThe system must provide the user the option to enable multi-factor authentication.

This describes a specific functional capability for a user.

CThe system must allow the user to upload a profile image.

This describes a specific functional capability for a user.

DThe system must adhere to all security requirements and regulations.Correct

Adhering to all security requirements and regulations is a non-functional requirement because it specifies a quality attribute (security compliance) of the system, rather than a specific user-facing behavior or feature.

Concept tested: Functional vs. Non-functional requirements

Source: https://www.iso.org/standard/63588.html

Topics

#Non-functional requirements#Security requirements#System quality attributes

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