Software Testing MCQ

Software testing plays an indispensable role in the software development lifecycle, ensuring that products meet specifications and are free from defects. But how much do you really know about software testing? Put your knowledge to the test with these 25 multiple-choice questions!

1. What is the main objective of software testing?

a) Debugging the code
b) Deploying the application
c) Validating that software meets requirements and detecting defects
d) Writing documentation

Answer:

c) Validating that software meets requirements and detecting defects

Explanation:

The primary goal of software testing is to ensure the software meets its specified requirements and to identify any defects or discrepancies between the actual and expected results.

2. Which of the following testing types focuses on the functionality of the software?

a) Performance Testing
b) Usability Testing
c) Functional Testing
d) Security Testing

Answer:

c) Functional Testing

Explanation:

Functional testing is concerned with verifying that the software functions according to the defined requirements and specifications.

3. What is a "test case"?

a) A specific condition to determine the correctness of software
b) A piece of code developers write
c) A type of bug or defect
d) The environment where testing is performed

Answer:

a) A specific condition to determine the correctness of software

Explanation:

A test case is a set of conditions or variables under which a tester determines whether a system under test satisfies requirements or works correctly.

4. Which of the following is NOT a level of software testing?

a) Unit Testing
b) Integration Testing
c) System Testing
d) Requirement Testing

Answer:

d) Requirement Testing

Explanation:

Requirement Testing isn't a recognized level of software testing. The main levels of testing include Unit, Integration, and System Testing.

5. In which phase of the SDLC is testing done?

a) Requirement Gathering
b) Design
c) Coding
d) Testing

Answer:

d) Testing

Explanation:

Testing is a distinct phase in the Software Development Life Cycle (SDLC). After coding is complete, the software moves to the testing phase where it undergoes various types of tests.

6. Which type of testing focuses on testing the software for potential security vulnerabilities?

a) Functional Testing
b) Security Testing
c) Usability Testing
d) Compatibility Testing

Answer:

b) Security Testing

Explanation:

Security testing aims to uncover vulnerabilities, threats, and risks in a software application and prevent malicious attacks.

7. What does "Regression Testing" involve?

a) Testing a regression model in statistics
b) Testing only the new features in software
c) Testing to ensure that previously developed and tested software still functions after a change
d) Testing the first version of a software

Answer:

c) Testing to ensure that previously developed and tested software still functions after a change

Explanation:

Regression Testing is conducted after modifications (like bug fixes or new features) to ensure that recent changes haven't adversely affected existing features.

8. Which type of testing is carried out by the development team?

a) Alpha Testing
b) Beta Testing
c) Acceptance Testing
d) White Box Testing

Answer:

d) White Box Testing

Explanation:

White Box Testing (or Glass Box Testing) is carried out by the developers, as it involves testing the internal structures or workings of an application, which is typically known to the developers.

9. What is "Black Box Testing"?

a) Testing the external behavior of a program
b) Testing by developers
c) Testing based on the color of the box
d) A type of performance testing

Answer:

a) Testing the external behavior of a program

Explanation:

Black Box Testing focuses on testing the software's functionality without any knowledge of its internal workings or logic.

10. Which testing is done to ensure the software works for the intended audience?

a) Usability Testing
b) Security Testing
c) Performance Testing
d) Integration Testing

Answer:

a) Usability Testing

Explanation:

Usability Testing evaluates the software's user-friendliness and overall user experience, ensuring it is effective, efficient, and satisfying for the intended audience.

11. What type of testing checks the software's performance under load?

a) Load Testing
b) Functional Testing
c) Unit Testing
d) Acceptance Testing

Answer:

a) Load Testing

Explanation:

Load Testing checks how the system behaves under a specific load, ensuring it can maintain good performance and responsiveness.

12. What is the main purpose of "Stress Testing"?

a) To test the software with insufficient resources
b) To ensure software works in a stressed environment
c) To check if the software can be easily hacked
d) To ensure software works on different devices

Answer:

a) To test the software with insufficient resources

Explanation:

Stress Testing involves subjecting the software to conditions beyond its specifications to evaluate its behavior under adverse conditions, such as insufficient memory or disk space.

13. Which of the following is a non-functional testing type?

a) Integration Testing
b) Unit Testing
c) Usability Testing
d) Alpha Testing

Answer:

c) Usability Testing

Explanation:

Non-functional testing checks non-functional aspects of software like usability, performance, and reliability. Usability Testing is one such type.

14. Who typically conducts "Beta Testing"?

a) Developers
b) Testers
c) End Users
d) Managers

Answer:

c) End Users

Explanation:

Beta Testing is usually done by a select group of end-users before the software's final release to ensure it meets users' needs and is free of major issues.

15. What is a "Test Suite"?

a) A collection of software tools for testing
b) A collection of defects found during testing
c) A collection of test cases
d) A room where testers work

Answer:

c) A collection of test cases

Explanation:

A Test Suite is a collection of test cases that are intended to be used to test a software program to ensure it meets certain standards and works as expected.

16. Which of the following describes "Exploratory Testing"?

a) Following a strict script
b) Testing without a plan or documentation
c) Only testing the most important features
d) Exploring the software's source code

Answer:

b) Testing without a plan or documentation

Explanation:

Exploratory Testing involves testers actively exploring the application without a strict script, simultaneously designing and executing tests based on their findings.

17. What is "Sanity Testing"?

a) Checking the logical sanity of the software's code
b) A test to check the stability of software under stress
c) A quick test to determine if a particular software function is working
d) Detailed and comprehensive testing

Answer:

c) A quick test to determine if a particular software function is working

Explanation:

Sanity Testing is done to ensure that a particular function or section of an application is working as expected, typically after a minor change.

18. What is the primary goal of "Compatibility Testing"?

a) Ensure software works on different devices and environments
b) Check if software is compatible with previous versions
c) Ensure software is compatible with other software products
d) Check the software's compatibility with user requirements

Answer:

a) Ensure software works on different devices and environments

Explanation:

Compatibility Testing aims to ensure that software can run on different devices, operating systems, network environments, or browsers.

19. Which testing type focuses on a single module or unit of code?

a) System Testing
b) Integration Testing
c) Unit Testing
d) Acceptance Testing

Answer:

c) Unit Testing

Explanation:

Unit Testing focuses on individual units or components of a software to validate that each unit functions correctly.

20. Which type of testing validates the end-to-end functioning of an application?

a) Unit Testing
b) System Testing
c) Performance Testing
d) Load Testing

Answer:

b) System Testing

Explanation:

System Testing validates the complete and fully integrated software product, ensuring that the entire application works in terms of functionality, performance, and more.

21. Which testing type is done after "System Testing"?

a) Unit Testing
b) Acceptance Testing
c) Integration Testing
d) Load Testing

Answer:

b) Acceptance Testing

Explanation:

Acceptance Testing is done after System Testing to ensure that the system meets the acceptance criteria and is ready for delivery to the client or end-users.

22. What is "End-to-End Testing"?

a) Testing the frontend of an application
b) Testing the backend of an application
c) Testing a single feature from start to finish
d) Testing the flow of an application from start to finish, including its interaction with external systems

Answer:

d) Testing the flow of an application from start to finish, including its interaction with external systems

Explanation:

End-to-End Testing validates the flow of an application, ensuring that the entire process of using the application works smoothly, including its interactions with databases, networks, and other services.

23. Which of the following is a benefit of automated testing?

a) It can replace manual testing entirely
b) It is always more accurate than manual testing
c) It can execute repetitive tasks and regression tests efficiently
d) It understands the context of software

Answer:

c) It can execute repetitive tasks and regression tests efficiently

Explanation:

Automated testing is especially beneficial for executing repetitive tasks, regression tests, and scenarios that need to be run frequently, ensuring quicker and consistent results.

24. What is "Boundary Value Analysis"?

a) Testing within the boundaries of the software's code
b) Testing the software's user interface
c) Testing with values that are on the edge of acceptable limits
d) Analyzing the highest values a software can handle

Answer:

c) Testing with values that are on the edge of acceptable limits

Explanation:

Boundary Value Analysis is a testing technique where test cases are designed to include values at the boundary. If there are boundaries at

25. What is a "Defect"?

a) An intended functionality that developers forgot to implement
b) A feature that users request after software deployment
c) Any variance between the actual and expected result
d) An external factor affecting the software

Answer:

c) Any variance between the actual and expected result

Explanation:

A defect, also known as a bug or fault, is any variance between the actual result produced by the software and the expected result, causing the software to behave in an unintended way.


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