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#1. What is the primary function of GitHub Copilot within the Visual Studio Code environment?

To scan for security vulnerabilities in code

To scan for security vulnerabilities in code

To provide AI-based code completion and suggestions as you type

To provide AI-based code completion and suggestions as you type

To run unit tests automatically on your code

To run unit tests automatically on your code

To synchronize settings across multiple devices

To synchronize settings across multiple devices

#2. Which of the following file extensions does GitHub Copilot most effectively support for code suggestions?

docx

docx

py

py

jpeg

jpeg

mp3

mp3

#3. What is required to enable GitHub Copilot in Visual Studio Code?

a) A valid GitHub account and a Copilot subscription

a) A valid GitHub account and a Copilot subscription

b) Just installing Visual Studio Code

b) Just installing Visual Studio Code

c) Only a local repository

c) Only a local repository

d) Only a Microsoft Live account

d) Only a Microsoft Live account

#4. What is one key feature of GitHub Copilot when writing code comments in plain English?

a) It checks spelling automatically in all comments.

a) It checks spelling automatically in all comments.

b) It can convert plain English comments into code suggestions or code blocks.

b) It can convert plain English comments into code suggestions or code blocks.

c) It formats comments according to PEP8 style.

c) It formats comments according to PEP8 style.

d) It removes all comments before committing code.

d) It removes all comments before committing code.

#5. How does GitHub Copilot provide code suggestions?

a) By analyzing only code in your current project folder

a) By analyzing only code in your current project folder

b) By using machine learning models trained on a vast amount of public code and your current context

b) By using machine learning models trained on a vast amount of public code and your current context

c) By searching Stack Overflow live

c) By searching Stack Overflow live

d) By connecting directly to GitHub Issues

d) By connecting directly to GitHub Issues

#6. Which of the following best describes how Copilot treats private code?

a) Copilot may suggest code from any private repositories on GitHub

a) Copilot may suggest code from any private repositories on GitHub

b) Copilot does not use your private code to train its model, but may use it as context for suggestions

b) Copilot does not use your private code to train its model, but may use it as context for suggestions

c) Copilot will never access or use private code in any form

c) Copilot will never access or use private code in any form

d) Copilot publishes your private code automatically

d) Copilot publishes your private code automatically

#7. Which extension must be installed in Visual Studio Code to enable GitHub Copilot?

a) Python Extension

a) Python Extension

b) GitHub Copilot Extension

b) GitHub Copilot Extension

c) IntelliCode Extension

c) IntelliCode Extension

d) Prettier Extension

d) Prettier Extension

#8. How can you accept an inline suggestion from GitHub Copilot in Visual Studio Code?

a) Press Tab or right arrow key

a) Press Tab or right arrow key

b) Press Escape

b) Press Escape

c) Close and reopen VS Code

c) Close and reopen VS Code

d) Use the Print command

d) Use the Print command

#9. What is one responsible practice when using code suggestions from Copilot?

a) Always accept every suggestion

a) Always accept every suggestion

b) Review suggestions for quality, security, and license compliance before using in production

b) Review suggestions for quality, security, and license compliance before using in production

c) Disable all other extensions

c) Disable all other extensions

d) Share Copilot suggestions without credit

d) Share Copilot suggestions without credit

#10. Scenario 2 — Prompt Refinement for Bug Localization. A developer uses Copilot Chat in VS Code to identify the cause of an intermittent null‑reference error in a Python API, but Copilot’s explanations remain vague. Which strategy will most likely improve Copilot’s diagnostic accuracy?

good question

good question

A) Give Copilot only the single line where the error occurs

A) Give Copilot only the single line where the error occurs

B) Include the full stack trace and several related code blocks in the prompt

B) Include the full stack trace and several related code blocks in the prompt

C) Restart VS Code and re‑ask the same question

C) Restart VS Code and re‑ask the same question

D) Ask Copilot to rewrite the entire module automatically

D) Ask Copilot to rewrite the entire module automatically

#11. Scenario  — Improving Test Coverage with Copilot Chat. You’re enhancing the test coverage of a large TypeScript backend project. The team wants to use Copilot Chat to auto‑generate tests and ensure that each new function receives basic validation. What is the best approach to maximize the quality of generated test cases?

good question.

good question.

A) Ask Copilot Chat to generate global project‑wide tests automatically

A) Ask Copilot Chat to generate global project‑wide tests automatically

B) Provide Copilot Chat with individual function definitions and example test styles

B) Provide Copilot Chat with individual function definitions and example test styles

C) Disable test framework context to enforce generic suggestions

C) Disable test framework context to enforce generic suggestions

D) Let Copilot Chat import and test all third‑party modules directly

D) Let Copilot Chat import and test all third‑party modules directly

Finish

B. Use Copilot to scaffold test cases and refine them manually.

Question 18: Copilot and Code Suggestions

Which of the following is a sign of poor Copilot suggestion quality?

A. The suggestion includes outdated APIs
B. The suggestion matches your comment exactly
C. The suggestion compiles without errors
D. The suggestion includes inline documentation

A. The suggestion includes outdated APIs.

19: Copilot and Collaboration

How can GitHub Copilot enhance collaboration in a development team?

A. By replacing team discussions with AI suggestions
B. By generating code that teammates can review and improve
C. By removing the need for documentation
D. By automatically merging pull requests

B. By generating code that teammates can review and improve.

Question 20: Copilot and Accessibility

Which of the following is a positive use case of GitHub Copilot for improving accessibility?

A. Generating ARIA labels for screen readers
B. Removing all alt text from images
C. Ignoring keyboard navigation support
D. Disabling semantic HTML tags

A. Generating ARIA labels for screen readers.

GitHub Copilot can assist in writing accessible code by suggesting ARIA labels, semantic HTML, and other features that improve usability for people with disabilities. This is a positive and ethical use case. The other options listed (removing alt text, ignoring keyboard support, disabling semantic tags) reduce accessibility and are considered poor practices.

Question 21: Copilot and Code Consistency

Which of the following practices helps maintain consistency when using GitHub Copilot across a team?

A. Let each developer use Copilot however they prefer
B. Establish shared coding standards and review Copilot suggestions accordingly
C. Avoid documenting Copilot usage
D. Disable Copilot for junior developers

B. Establish shared coding standards and review Copilot suggestions accordingly.

Question 22: Copilot and Sensitive Data

Which of the following is a safe practice when using GitHub Copilot in a repository that contains sensitive data?

A. Use Copilot to generate encryption keys
B. Disable Copilot suggestions in sensitive files
C. Accept all suggestions without review
D. Share Copilot-generated code snippets publicly

B. Disable Copilot suggestions in sensitive files.

Question 23: Copilot and Code Efficiency

Which of the following is a benefit of using GitHub Copilot for repetitive coding tasks?

A. It reduces the need for code optimization
B. It eliminates the need for documentation
C. It speeds up development by automating boilerplate code
D. It replaces the need for experienced developers

C. It speeds up development by automating boilerplate code.

Question 24: Copilot and Pull Requests

What is a good practice when using Copilot-generated code in a pull request?

A. Skip the pull request description since Copilot wrote the code
B. Clearly explain the purpose and origin of the Copilot-generated code
C. Merge the pull request without review
D. Avoid using Copilot code in pull requests

B. Clearly explain the purpose and origin of the Copilot-generated code.

Question 25: Copilot and Language Models

What type of model powers GitHub Copilot?

A. Rule-based expert system
B. Traditional compiler
C. Large language model (LLM)
D. Neural network for image recognition

C. Large language model (LLM).