# Accessibility and performance

> Text that identifies a control to assistive technology.

Course: [Web development foundations](https://studybrix.com/en/courses/web-development/index.md)
Level: university
Prerequisites: Basic computer literacy.

## Notes

### Accessible name

Text that identifies a control to assistive technology.

### Keyboard access

The ability to operate interactive features without a pointing device.

### Alternative text

A textual equivalent for meaningful non-text content.

### Performance budget

A practical limit for resource size or runtime cost used to protect speed.

## Practice questions

### 1. Which term best matches this description: Text that identifies a control to assistive technology.

A. Alternative text
B. Keyboard access
C. Accessible name
D. Performance budget

Answer: Accessible name

Explanation: Accessible name is the matching concept in this lesson.

### 2. Which term best matches this description: The ability to operate interactive features without a pointing device.

A. Keyboard access
B. Performance budget
C. Alternative text
D. Accessible name

Answer: Keyboard access

Explanation: Keyboard access is the matching concept in this lesson.

### 3. Which concept would you apply first in a situation where a textual equivalent for meaningful non-text content.

A. Keyboard access
B. Accessible name
C. Alternative text
D. Performance budget

Answer: Alternative text

Explanation: The scenario directly calls for Alternative text.

### 4. Name the concept described as: A practical limit for resource size or runtime cost used to protect speed.

Answer: Performance budget

Explanation: The intended concept is Performance budget.

### 5. Which statement about Accessible name is most accurate?

A. The ability to operate interactive features without a pointing device.
B. Text that identifies a control to assistive technology.
C. A practical limit for resource size or runtime cost used to protect speed.
D. A textual equivalent for meaningful non-text content.

Answer: Text that identifies a control to assistive technology.

Explanation: The definition in the lesson notes gives the required condition.

### 6. Explain one important difference between Accessible name and Keyboard access.

Sample answer / marking guidance: Accessible name: Text that identifies a control to assistive technology. Keyboard access: The ability to operate interactive features without a pointing device.

Explanation: Credit a clear distinction using both definitions and an appropriate example if supplied.

### 7. Give a short example showing how Alternative text would be used in practice.

Sample answer / marking guidance: A valid example should demonstrate this idea: A textual equivalent for meaningful non-text content.

Explanation: Credit a relevant scenario that applies the concept rather than merely naming it.

### 8. Summarize why Performance budget matters in the lesson “Accessibility and performance”.

Sample answer / marking guidance: Performance budget matters because A practical limit for resource size or runtime cost used to protect speed.

Explanation: Credit the core purpose, scope and any important limitation from the notes.

## Further reading

- https://developer.mozilla.org/

Original AI-assisted educational draft; not independently teacher-reviewed. References support further study, not copied exercises, affiliation or curriculum accreditation.