Certified Professional in Accessibility Core Competencies (CPACC) Practice Exam 2026 – The All-In-One Guide to Master Your Certification!

Question: 1 / 400

If a navigation menu only expands on mouse hover and not on keyboard focus, which POUR principle does this violate?

Robust

Understandable

Perceivable

Operable

The correct answer pertains to the principle of Operable. This principle emphasizes that all users should be able to operate the interface, regardless of the technology they are using. When a navigation menu only expands on mouse hover and not when an item is focused using the keyboard, it creates an accessibility barrier for users who rely on keyboard navigation, such as those who use screen readers or cannot use a mouse due to mobility impairments.

For an interface to be fully operable, all interactive elements must be accessible through various input methods, including keyboard navigation. By not providing keyboard access to the menu, the design violates this fundamental principle, making it difficult or impossible for some users to navigate effectively. Just as interfaces must be perceivable and understandable, they must also allow all users to interact with them in ways that suit their needs.

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