PL-300 Keyboard navigation tab order Practice Question
Which THREE of the following are valid methods to enhance the accessibility of a Power BI report? (Choose three.)
⚠ Common exam trap
The trap is that candidates often overlook high contrast themes as a valid accessibility feature, mistakenly thinking they are only for visual appeal. However, Power BI's high contrast themes are a built-in accessibility feature, so option C is correct.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Provide keyboard navigation support by setting tab order.
Setting tab order in Power BI allows keyboard-only users to navigate through report visuals in a logical sequence, which is a core requirement of WCAG 2.1 success criterion 2.4.3 (Focus Order). Option C is correct because Power BI provides built-in high contrast themes that enhance readability for users with visual impairments. Option E is correct because adding alt text to visuals ensures screen readers can convey the content to visually impaired users. Option D is not considered a valid method for this question; while using a color-blind friendly palette is a good design practice, it is not specifically a method to enhance accessibility in the context of the exam. Option A is incorrect as animations can distract and are not an accessibility feature.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Add animations to visuals to draw attention.
Why it's wrong here
Animations such as fly-ins or spinning visuals are decorative motion effects that do not aid comprehension. They can trigger vestibular or photosensitive issues, and screen readers ignore motion, so the information is lost. Under accessibility best practices, static and predictable visuals are preferred because animations introduce visual noise without providing any equivalent text or structural benefit.
- ✓
Provide keyboard navigation support by setting tab order.
Why this is correct
Setting tab order on visual elements creates a logical keyboard-only flow through a report. This is a core WCAG 2.1 requirement under 'keyboard accessible' because it lets users navigate without a mouse. By defining a sequence, Power BI ensures screen reader users and those with motor impairments can reach every interaction predictably, avoiding random or confusing jumps.
- ✓
Use a high contrast theme.
Why this is correct
Power BI's built-in high contrast theme applies a simplified, high-contrast color palette that distinguishes text, data, and backgrounds more clearly. This directly aids users with low vision or contrast sensitivity by reducing eye strain and making content discernible. When a user enables high contrast in Windows, Power BI can automatically adopt the system theme, ensuring a seamless accessible experience.
- ✗
Use a color-blind friendly palette.
Why it's wrong here
Although color-blind friendly palettes can help some users, they are not considered a direct method to enhance accessibility in the context of this exam; the three correct methods are tab order, high contrast themes, and alt text.
- ✓
Add alt text to all visuals.
Why this is correct
Alt text on a visual provides a concise, meaningful description that screen readers announce aloud. In Power BI, you add alt text in the 'General' pane of a visual; it should summarize the graphic's key insight rather than describing every pixel. This enables visually impaired users to grasp the same information as sighted users, fulfilling the WCAG 'text alternatives' principle.
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