Module Quiz: Testing :Mobile Development and JavaScript (Meta iOS Developer Professional Certificate) Answers 2026

Question 1

Which of the following is a framework that can help you run a unit test?

✅ Jest
❌ JavaTest
❌ JavaFrame
❌ JFrame

Explanation:
Jest JavaScript ka popular testing framework hai jo unit tests run karne ke liye use hota hai.

Question 2

When the following test executes, what will the test result be?

❌ Success.
✅ Fail.

Explanation:
multiply(2,2) function sirf a return kar raha hai (2), jabki expectation 4 hai.

Question 3

Which of the following testing types revolves around the idea of having separate, small pieces of code that are easy to test?

✅ Unit testing.
❌ Integration testing.
❌ End-to-end testing.
❌ Post-hoc testing.

Question 4

Which of the following describes a measure of what percentage of your code is covered by tests?

❌ TestMeasure
❌ Code coverage
❌ Test%
✅ Test coverage

Explanation:
Test coverage batata hai kitna code tests ke through execute ho raha hai.

Question 5

Node.js is typically used to do which of the following?

❌ Run unit tests
❌ Estimate code coverage
✅ Build web application backends
❌ Download and manage packages

Question 6

Which of the following is testing how parts of your system interact with other parts of your system?

❌ Post-hoc testing
❌ End-to-end testing
❌ Unit testing
✅ Integration testing

Question 7

True or False: You can install packages from the npm repository using the node command.

❌ True
✅ False

Explanation:
Packages install karne ke liye npm command use hota hai, node nahi.

Question 8

Which file lists all your application’s required node packages?

❌ node.json
✅ package.json
❌ pkg.json
❌ npm.json

Question 9

A person on your team wants to help with testing. However, they are not a developer and cannot write code. What type of testing is most suited for them?

✅ End-to-end testing
❌ Post-hoc testing
❌ Integration testing
❌ Unit testing

Explanation:
End-to-end testing real user flow test karta hai, jisme coding knowledge zaroori nahi hoti.

Question 10

Which of the below statements would NOT be a benefit of Mocking?

❌ You can test the front end functionality of your web app by mocking the data as if it came back from a server.
✅ Mocking is a substitute for testing.
❌ Mocks allow you to pretend that users are already there if the backend hasn’t been built yet.
❌ Mocking allows you to separate the code that you are testing from its related dependencies.

Explanation:
Mocking testing ka substitute nahi, balki testing ko easier banata hai.

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