Question 1

As a junior developer, you’ve recently started using GitHub Copilot Chat to assist in your coding tasks. You want to ensure you’re getting the best out of the AI assistant while maintaining code quality, security, and efficiency. During a session, Copilot suggests a code snippet. Before accepting it, what best practice should you follow?

Options :

A : Disable all linting tools to avoid conflicts with Copilot-s suggestions

B : Review the suggested code for security vulnerabilities and bugs

C : Copy the code from Copilot and paste it directly into your production codebase

D : Always accept the first suggestion without reviewing the code

Answer: B

Question 2

You are working on a Node.js project that uses Jest for unit testing. Your task is to write a test for a function calculateTotal() that takes an array of numbers and returns the sum. You have asked GitHub Copilot to assist you in generating the unit test. Below is the code generated by Copilot:Which two of the following actions would best ensure that the generated test properly validates the calculateTotal() function and follows best testing practices? (Select two)

Options :

A : Add a test case to check if the function handles non-numeric values in the array

B : Trust the generated test as sufficient and do not add more tests.

C : Rely on manual testing to check other edge cases like large numbers or floats.

D : Add a test case where the input includes negative numbers and zeros.

E : Modify the test to include an empty array as input.

Answer: A,D

Question 3

After confirming GitHub Copilot CLI is enabled in account settings, which of the following actions is required to complete the installation and initial configuration?

Options :

A : Download and install GitHub CLI using the command brew install gh, then link GitHub Copilot CLI manually.

B : Use the command gh auth login to authenticate and link GitHub Copilot CLI with the user’s GitHub account.

C : Enter copilot init to automatically set up GitHub Copilot CLI with default settings.

D : Run gh copilot configure to apply Copilot preferences and complete the setup.

Answer: B

Question 4

You are working on a Python project that includes a function calculate_discount(price, discount_rate) which calculates the final price after applying a discount. You want to use GitHub Copilot to generate unit tests for this function, ensuring that edge cases like invalid input are also covered. How can you use GitHub Copilot to generate appropriate tests for your function? (Select two)

Options :

A : Use GitHub Copilot to generate only positive test cases (e.g., valid price and discount values), and write the negative test cases manually.

B : Provide comments within your code describing potential edge cases like negative prices or high discount rates, and let GitHub Copilot generate tests based on these comments.

C : Prompt GitHub Copilot with the function signature and ask it to "generate tests."

D : Rely entirely on GitHub Copilot to generate tests and assume they cover all edge cases.

E : Ask GitHub Copilot to generate tests without including any function or code context.

Answer: B,C

Question 5

You are working on a full-stack web development project. You need GitHub Copilot to help generate both frontend (HTML, CSS, and JavaScript) and backend (Python, Node.js) code. To ensure you get high-quality suggestions, you’re wondering what languages and contexts GitHub Copilot supports. Which of the following statements best describes how GitHub Copilot supports different languages and technologies when writing prompts?

Options :

A : GitHub Copilot can generate code in multiple languages but can only suggest code in the language currently being used in the file.

B : GitHub Copilot only works for popular programming languages like Python, JavaScript, and Java.

C : GitHub Copilot supports multiple languages and contexts, and it can generate full-stack code across frontend and backend technologies.

D : GitHub Copilot is optimized for text-based languages but does not support markup languages like HTML or CSS.

Answer: C

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