CPACC - Certified Professional in Accessibility Core Competencies Cpacc/Questions/Mcq 1 — Questions and Answers
Question 1: What are the four core principles of the Web Content Accessibility Guidelines (WCAG), often remembered by the acronym POUR?
- Perceivable, Operable, Understandable, Robust (Correct answer)
- Portable, Operable, Usable, Readable
- Perceivable, Optimized, Universal, Reliable
- Practical, Operable, Understandable, Responsive
Correct answer: Perceivable, Operable, Understandable, Robust
WCAG is organized around four principles—Perceivable, Operable, Understandable, and Robust (POUR). Each principle groups success criteria that together ensure content is accessible to a wide range of users with disabilities.
Question 2: According to the social model of disability, what is the primary source of disability?
- The individual's medical diagnosis or impairment
- Lack of adequate personal support services
- Environmental and societal barriers that exclude people with impairments (Correct answer)
- The person's inability to adapt to mainstream society
Correct answer: Environmental and societal barriers that exclude people with impairments
The social model holds that disability arises from the barriers society creates—physical, attitudinal, and systemic—rather than from a person's impairment itself. Removing those barriers reduces or eliminates the disabling effect.
Question 3: What minimum color contrast ratio does WCAG 2.1 Level AA require for normal-sized body text against its background?
- 3:1
- 4.5:1 (Correct answer)
- 7:1
- 2:1
Correct answer: 4.5:1
WCAG 2.1 Success Criterion 1.4.3 (Level AA) requires a contrast ratio of at least 4.5:1 for normal text. Large text (18pt or 14pt bold) requires only 3:1 at AA, while 7:1 is the Level AAA threshold for normal text.
Question 4: Which document, adopted by the United Nations in 2006, is the primary international human rights treaty focused on the rights of persons with disabilities?
- The Marrakesh Treaty
- The Rehabilitation Act
- The UN Convention on the Rights of Persons with Disabilities (CRPD) (Correct answer)
- The Berne Convention
Correct answer: The UN Convention on the Rights of Persons with Disabilities (CRPD)
The UN Convention on the Rights of Persons with Disabilities (CRPD), adopted in 2006, is the first comprehensive human rights treaty of the 21st century. It establishes that persons with disabilities enjoy the same rights and fundamental freedoms as all other persons.
Question 5: In accessibility, what does the term 'keyboard trap' refer to?
- A physical keyboard lock used to prevent unauthorized computer access
- A situation where a user navigating by keyboard cannot move focus away from a component (Correct answer)
- A shortcut key sequence that triggers an unintended action
- A software bug that disables keyboard input entirely
Correct answer: A situation where a user navigating by keyboard cannot move focus away from a component
A keyboard trap occurs when focus enters a UI component—such as a modal or widget—and the user cannot navigate away using only the keyboard. WCAG 2.1 Success Criterion 2.1.2 (No Keyboard Trap) requires that focus can always be moved away using standard keys.
Question 6: Which of the following best describes 'captions' as an accessibility feature for video content?
- An audio description track narrating on-screen visual information
- Synchronized text transcriptions of spoken dialogue and relevant non-speech audio (Correct answer)
- A transcript document available for download separate from the video
- Subtitles that translate spoken content into a different language
Correct answer: Synchronized text transcriptions of spoken dialogue and relevant non-speech audio
Captions are synchronized text equivalents that include spoken dialogue AND relevant non-speech sounds (e.g., [door slams], [applause]). They differ from subtitles, which typically only translate speech, and from audio descriptions, which narrate visual information for blind users.
CPACC - Certified Professional in Accessibility Core Competencies Cpacc/Questions/Mcq 1
What are the four core principles of the Web Content Accessibility Guidelines (WCAG), often remembered by the acronym POUR?