User Experience Design Technology & Digital Applications 3

Question 1

When designing for touch interfaces, what is the recommended minimum touch target size according to most platform guidelines?

Accepted Answer

44x44 points (iOS) or 48x48 dp (Android)

Answer

Apple HIG recommends 44x44 pt and Google Material Design recommends 48x48 dp as minimum touch targets to prevent mis-taps.

Question 2

What is 'skeleton screen' loading, and why is it preferred over spinner-based loading in UX?

Accepted Answer

Placeholder content shapes that mimic the final layout, reducing perceived wait time

Answer

Skeleton screens show the page structure before data arrives, giving users a sense of progress and reducing the feeling of waiting compared to an indefinite spinner.

Question 3

In web accessibility, what is the purpose of ARIA `role` attributes?

Accepted Answer

To convey semantic meaning of UI elements to assistive technologies when native HTML semantics are insufficient

Answer

ARIA roles supplement or override the implicit semantics of HTML elements, ensuring screen readers can correctly interpret custom widgets.

Question 4

Which of the following best describes the UX benefit of using a design system with a shared component library?

Accepted Answer

It ensures visual and behavioral consistency across products while speeding up design and development

Answer

Shared component libraries create a single source of truth that aligns design and engineering, reducing inconsistency and duplicated effort across teams.

Question 5

What is 'infinite scroll' and what is a key UX drawback of this pattern?

Accepted Answer

Continuously loading content as users scroll down; it makes it hard to reach footers and track position in a list

Answer

Infinite scroll improves content discovery but traps users in a feed with no clear end, making it difficult to find previously seen items or access page footers.

User Experience Design Practice Test

User Experience Design Practice Test

User Experience Design Technology & Digital Applications 3