Software Testing MCQs and Answers With Explanation – Check out this article if you are in need of Software Testing Questions and Answers. Software testing is a crucial part of software development that ensures the software system meets specified requirements and quality standards. It involves the execution of software under controlled conditions to identify any errors, defects, or shortcomings. Test cases are documented and outline the steps to be taken to execute a particular test, including expected results, input data, and test preconditions. There are different types of software testing, including functional and non-functional testing, black-box and white-box testing, regression testing, smoke testing, acceptance testing, and usability testing. And in order to test your knowledge of Software Testing concepts this Software Testing MCQ With Answers article is the right choice for you.
Software Testing Questions and Answers
In this set of Top 50 Software Testing Multiple Choice Questions you can get complete knowledge about the basics of software testing, and software testing types, and many other things. And just to give you a heads up through this Software Testing MCQ Quiz/ Software Testing Quiz we will test your knowledge of software testing concepts and principles.
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Software Testing Multiple Choice Questions
| Name | Software Testing |
| Exam Type | MCQ (Multiple Choice Questions) |
| Category | Technical Quiz |
| Mode of Quiz | Online |
Top 50 Software Testing MCQ With Answers | Practice Online Quiz
1. What is software testing?
a) The process of ensuring that a software system meets specified requirements and quality standards
b) The process of designing software systems
c) The process of coding software systems
d) The process of debugging software systems
Answer: a) The process of ensuring that a software system meets specified requirements and quality standards
Explanation: Software testing is the process of evaluating a software system or application to ensure that it meets specified requirements and quality standards. It involves the execution of software under controlled conditions to identify any errors, defects, or shortcomings.
2. What is a test case?
a) A document that outlines the steps to be taken to execute a particular test
b) A document that outlines the overall test strategy for a project
c) A document that outlines the project requirements
d) A document that outlines the design of the software system
Answer: a) A document that outlines the steps to be taken to execute a particular test
Explanation: A test case is a document that outlines the steps to be taken to execute a particular test. It includes information about the expected result, input data, and test preconditions.
3. What is functional testing?
a) Testing the functionality of the software system
b) Testing the performance of the software system
c) Testing the security of the software system
d) Testing the compatibility of the software system
Answer: a) Testing the functionality of the software system
Explanation: Functional testing is a type of software testing that involves testing the functionality of the software system. It is used to ensure that the software system meets the specified requirements and performs the functions that it is supposed to perform.
4. What is non-functional testing?
a) Testing the functionality of the software system
b) Testing the performance of the software system
c) Testing the security of the software system
d) Testing the compatibility of the software system
Answer: b) Testing the performance of the software system
Explanation: Non-functional testing is a type of software testing that focuses on testing the non-functional aspects of a software system such as performance, scalability, reliability, and usability.
5. What is black-box testing?
a) Testing where the tester has knowledge of the internal workings of the software system
b) Testing where the tester has no knowledge of the internal workings of the software system
c) Testing where the tester is only concerned with the performance of the software system
d) Testing where the tester is only concerned with the functionality of the software system
Answer: b) Testing where the tester has no knowledge of the internal workings of the software system
Explanation: Black-box testing is a type of software testing where the tester has no knowledge of the internal workings of the software system. The tester only has access to the inputs and outputs of the software system and tests it based on its functionality.
6. What is white-box testing?
a) Testing where the tester has knowledge of the internal workings of the software system
b) Testing where the tester has no knowledge of the internal workings of the software system
c) Testing where the tester is only concerned with the performance of the software system
d) Testing where the tester is only concerned with the functionality of the software system
Answer: a) Testing where the tester has knowledge of the internal workings of the software system
Explanation: White-box testing is a type of software testing where the tester has knowledge of the internal workings of the software system. The tester tests the software system by looking at the internal code and making sure that it conforms to design specifications.
7. What is regression testing?
a) Testing to ensure that new features do not introduce new bugs
b) Testing to ensure that the software system meets specified requirements
c) Testing to ensure that the software system performs at an acceptable level
d) None
Answer: a) Testing to ensure that new features do not introduce new bugs
Explanation: Regression testing is a type of software testing that involves retesting a software system after changes or modifications have been made to ensure that new features do not introduce new bugs or break existing functionality. It is used to ensure that the software system continues to function as intended after changes have been made.
8. What is smoke testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to ensure that non-critical functionality of the software system is working
Answer: c) Testing to ensure that critical functionality of the software system is working
Explanation: Smoke testing is a type of software testing that involves testing the critical functionality of a software system to ensure that it is working properly. It is used to identify any major issues or defects in the software system before more extensive testing is done.
9. What is acceptance testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to ensure that non-critical functionality of the software system is working
Answer: a) Testing to ensure that the software system meets specified requirements
Explanation: Acceptance testing is a type of software testing that involves testing a software system to ensure that it meets the specified requirements and is acceptable to the end-users. It is usually done by the client or end-user before accepting the software system for deployment.
10. What is usability testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to ensure that the software system is easy to use and user-friendly
Answer: d) Testing to ensure that the software system is easy to use and user-friendly
Explanation: Usability testing is a type of software testing that involves testing the software system to ensure that it is easy to use and user-friendly. It is used to identify any usability issues or problems with the user interface or user experience of the software system.
11. What is load testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to ensure that the software system can handle expected and unexpected loads
Answer: d) Testing to ensure that the software system can handle expected and unexpected loads
Explanation: Load testing is a type of software testing that involves testing the software system to ensure that it can handle expected and unexpected loads, such as the number of users or the volume of data, without crashing or slowing down. It is used to identify performance bottlenecks and to optimize the software system for maximum performance.
12. What is stress testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to ensure that the software system can handle unexpected loads beyond its capacity
Answer: d) Testing to ensure that the software system can handle unexpected loads beyond its capacity
Explanation: Stress testing is a type of software testing that involves testing the software system to ensure that it can handle unexpected loads beyond its capacity, such as high traffic or heavy usage, without crashing or failing. It is used to identify the breaking point or limit of the software system and to ensure that it can recover from unexpected failures.
13. What is performance testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to ensure that the software system can handle expected and unexpected loads and meets performance criteria
Answer: d) Testing to ensure that the software system can handle expected and unexpected loads and meets performance criteria
Explanation: Performance testing is a type of software testing that involves testing the software system to ensure that it can handle expected and unexpected loads and meets performance criteria, such as response time, throughput, and resource utilization. It is used to identify performance issues or bottlenecks and to optimize the software system for maximum performance.
14. What is compatibility testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to ensure that the software system works correctly on different platforms and browsers
Answer: d) Testing to ensure that the software system works correctly on different platforms and browsers
Explanation: Compatibility testing is a type of software testing that involves testing the software system to ensure that it works correctly on different platforms, such as different operating systems or devices, and different browsers. It is used to ensure that the software system can be used by a wider range of users with different configurations.
15. What is security testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to ensure that the software system is secure and free from vulnerabilities
Answer: d) Testing to ensure that the software system is secure and free from vulnerabilities
Explanation: Security testing is a type of software testing that involves testing the software system to ensure that it is secure and free from vulnerabilities, such as unauthorized access or malicious attacks. It is used to identify potential security risks or vulnerabilities and to ensure that the software system is protected against them.
16. What is exploratory testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing where the tester explores the software system without a specific test plan
Answer: d) Testing where the tester explores the software system without a specific test plan
Explanation: Exploratory testing is a type of software testing where the tester explores the software system without a specific test plan. The tester uses their knowledge and experience to identify issues or areas of the software system that may be problematic. It is used to identify issues that may not be found through other types of testing and to ensure that the software system is thoroughly tested.
17. What is API testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing of the Application Programming Interfaces of the software system
Answer: d) Testing of the Application Programming Interfaces of the software system
Explanation: API testing is a type of software testing that involves testing the Application Programming Interfaces (APIs) of the software system. It is used to ensure that the APIs are functioning correctly, that they return the expected results, and that they are compatible with other software components that use them. API testing is often used in integration testing to ensure that different software components work together seamlessly.
18. What is black box testing?
a) Testing where the tester has knowledge of the software system’s internal workings
b) Testing where the tester has no knowledge of the software system’s internal workings
c) Testing to ensure that critical functionality of the software system is working
d) Testing where the tester only tests the graphical user interface (GUI) of the software system
Answer: b) Testing where the tester has no knowledge of the software system’s internal workings
Explanation: Black box testing is a type of software testing where the tester has no knowledge of the software system’s internal workings. The tester focuses on the inputs and outputs of the software system and tests the software system as a whole. It is used to test the software system from the user’s perspective and to identify issues that may not be apparent from other types of testing.
19. What is white box testing?
a) Testing where the tester has knowledge of the software system’s internal workings
b) Testing where the tester has no knowledge of the software system’s internal workings
c) Testing to ensure that critical functionality of the software system is working
d) Testing where the tester only tests the graphical user interface (GUI) of the software system
Answer: a) Testing where the tester has knowledge of the software system’s internal workings
Explanation: White box testing is a type of software testing where the tester has knowledge of the software system’s internal workings. The tester focuses on the internal structure, design, and implementation of the software system and tests each component individually. It is used to test the software system at a deeper level and to identify issues that may not be apparent from other types of testing.
20. What is boundary value testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to evaluate how the software system handles input values that are on the edge or boundary of the acceptable range
Answer: d) Testing to evaluate how the software system handles input values that are on the edge or boundary of the acceptable range
Explanation: Boundary value testing is a type of software testing where the software system is tested to evaluate how it handles input values that are on the edge or boundary of the acceptable range. It is used to identify issues that may occur when the software system is presented with input values that are just within or just outside the acceptable range.
21. What is equivalence partitioning testing?
a) Testing to ensure that the software system meets specified requirements
b) Testing to ensure that the software system performs at an acceptable level
c) Testing to ensure that critical functionality of the software system is working
d) Testing to evaluate how the software system handles input values that belong to the same equivalence class
Answer: d) Testing to evaluate how the software system handles input values that belong to the same equivalence class
Explanation: Equivalence partitioning testing is a type of software testing where the software system is tested to evaluate how it handles input values that belong to the same equivalence class. It is used to identify issues that may occur when the software system is presented with input values that are similar in nature and should be handled in the same way by the software system.
22. Which of the following is NOT a common testing level in software testing?
a) Unit testing
b) Integration testing
c) System testing
d) Performance testing
e) End-to-end testing
Answer: e) End-to-end testing
Explanation: End-to-end testing is not a common testing level in software testing. The common testing levels are unit testing, integration testing, system testing, and acceptance testing.
23. Which of the following is NOT a characteristic of good test cases?
a) Independent
b) Repeatable
c) Traceable
d) Complex
e) Comprehensive
Answer: d) Complex
Explanation: Good test cases should be independent, repeatable, traceable, and comprehensive. However, they should not be complex as this can make them difficult to understand and execute.
24. Which of the following is NOT a type of test coverage?
a) Statement coverage
b) Decision coverage
c) Condition coverage
d) Path coverage
e) Result coverage
Answer: e) Result coverage
Explanation: Result coverage is not a type of test coverage. The common types of test coverage are statement coverage, decision coverage, condition coverage, and path coverage.
25. Which of the following is NOT a characteristic of good test data?
a) Relevant
b) Comprehensive
c) Representative
d) Invalid
e) Varied
Answer: d) Invalid
Explanation: Good test data should be relevant, comprehensive, representative, and varied. However, it should not be invalid as this can lead to inaccurate test results.
26. Which of the following is a common approach to test automation?
a) Record and playback
b) Random testing
c) Ad hoc testing
d) Exploratory testing
Answer: a) Record and playback
Explanation: Record and playback is a common approach to test automation where the tester records a sequence of actions and inputs, and then plays them back to automate the test. This approach is useful for repetitive tests that require the same sequence of actions and inputs.
27. Which of the following is NOT a common tool used in software testing?
a) Test management tools
b) Test automation tools
c) Performance testing tools
d) Integrated development environments (IDEs)
e) Bug tracking tools
Answer: d) Integrated development environments (IDEs)
Explanation: Integrated development environments (IDEs) are not specifically designed for software testing, although they may have features that support testing. The common tools used in software testing are test management tools, test automation tools, performance testing tools, and bug tracking tools.
28. Which of the following is NOT a common type of software testing?
a) Functional testing
b) Performance testing
c) Security testing
d) Maintenance testing
e) Agile testing
Answer: e) Agile testing
Explanation: Agile testing is not a common type of software testing, although it is a software development methodology that emphasizes iterative and incremental development. The common types of software testing are functional testing, performance testing, security testing, and maintenance testing.
29. Which of the following is NOT a common testing technique?
a) Black-box testing
b) White-box testing
c) Grey-box testing
d) Red-box testing
e) Automated testing
Answer: d) Red-box testing
Explanation: Red-box testing is not a common testing technique. The common testing techniques are black-box testing, white-box testing, grey-box testing, and automated testing.
30. Which of the following is NOT a common test design technique?
a) Equivalence partitioning
b) Boundary value analysis
c) Decision table testing
d) Use case testing
e) Random testing
Answer: d) Use case testing
Explanation: Use case testing is not a common test design technique, although it is a technique that can be used to design tests for software systems that are driven by use cases. The common test design techniques are equivalence partitioning, boundary value analysis, decision table testing, and random testing.
31. Which of the following is NOT a common type of test design?
a) Functional test design
b) Structural test design
c) Regression test design
d) Exploratory test design
e) Performance test design
Answer: e) Performance test design
Explanation: Performance test design is not a common type of test design, although it is a type of testing that focuses on evaluating the performance of a software system. The common types of test design are functional test design, structural test design, regression test design, and exploratory test design.
32. Which of the following is a measure of test effectiveness?
a) Test coverage
b) Test automation
c) Test data
d) Test execution
e) Test planning
Answer: a) Test coverage
Explanation: Test coverage is a measure of test effectiveness that indicates the percentage of the software system that has been covered by tests. The higher the test coverage, the more effective the testing is likely to be.
33. Which of the following is a measure of test efficiency?
a) Test coverage
b) Test automation
c) Test data
d) Test execution
e) Test planning
Answer: b) Test automation
Explanation: Test automation is a measure of test efficiency that indicates the extent to which testing has been automated. The higher the level of test automation, the more efficient the testing is likely to be.
34. Which of the following is NOT a common criterion for selecting test cases?
a) High-risk areas
b) Code complexity
c) User experience
d) Business requirements
e) Functional requirements
Answer: c) User experience
Explanation: User experience is not a common criterion for selecting test cases, although it may be a consideration in some cases. The common criteria for selecting test cases are high-risk areas, code complexity, business requirements, and functional requirements.
35. Which of the following is NOT a common technique for measuring test coverage?
a) Statement coverage
b) Decision coverage
c) Condition coverage
d) Boundary value analysis
e) Path coverage
Answer: d) Boundary value analysis
Explanation: Boundary value analysis is not a common technique for measuring test coverage, although it is a test design technique that focuses on testing the boundaries of input domains. The common techniques for measuring test coverage are statement coverage, decision coverage, condition coverage, and path coverage.
36. Which of the following is a common technique for measuring test effectiveness?
a) Test coverage
b) Test automation
c) Test data
d) Defect detection percentage
e) Test execution time
Answer: d) Defect detection percentage
Explanation: Defect detection percentage is a common technique for measuring test effectiveness that indicates the percentage of defects that have been detected by testing. The higher the defect detection percentage, the more effective the testing is likely to be.
37. Which of the following is a common technique for measuring test efficiency?
a) Test coverage
b) Test automation
c) Test data
d) Defect detection percentage
e) Test execution time
Answer: e) Test execution time
Explanation: Test execution time is a common technique for measuring test efficiency that indicates the time required to execute tests. The lower the test execution time, the more efficient the testing is likely to be.
38. Which of the following is NOT a common category of software defects?
a) Coding defects
b) Design defects
c) Requirements defects
d) Performance defects
e) Configuration defects
Answer: d) Performance defects
Explanation: Performance defects are not a common category of software defects, although they may be a type of defect that can be found in software systems. The common categories of software defects are coding defects, design defects, requirements defects, and configuration defects.
39. Which of the following is a common category of testing?
a) Functional testing
b) Performance testing
c) Security testing
d) Usability testing
e) All of the above
Answer: e) All of the above
Explanation: Functional testing, performance testing, security testing, and usability testing are all common categories of testing. Other categories of testing include compatibility testing, regression testing, and acceptance testing.
40. Which of the following is NOT a common type of performance testing?
a) Load testing
b) Stress testing
c) Endurance testing
d) Volume testing
e) Security testing
Answer: e) Security testing
Explanation: Security testing is not a common type of performance testing, although it is a type of testing that focuses on evaluating the security of a software system. The common types of performance testing are load testing, stress testing, endurance testing, and volume testing.
41. Which of the following is a common technique for measuring software reliability?
a) Fault tree analysis
b) Risk analysis
c) FMEA analysis
d) MTBF analysis
e) Fault injection testing
Answer: d) MTBF analysis
Explanation: MTBF (mean time between failures) analysis is a common technique for measuring software reliability that estimates the average time between system failures. Other techniques for measuring software reliability include fault tree analysis, risk analysis, FMEA (failure modes and effects analysis) analysis, and fault injection testing.
42. Which of the following is a white-box testing technique?
a) Equivalence partitioning
b) Boundary value analysis
c) Decision table testing
d) Code coverage analysis
Answer: d) Code coverage analysis
Explanation: Code coverage analysis is a white-box testing technique that involves measuring the amount of code that has been executed during testing. Equivalence partitioning, boundary value analysis, and decision table testing are black-box testing techniques.
43. Which of the following is a tool used for static code analysis?
a) LoadRunner
b) Selenium
c) JMeter
d) SonarQube
Answer: d) SonarQube
Explanation: SonarQube is a tool used for static code analysis, which involves analyzing the source code without executing it. LoadRunner, Selenium, and JMeter are tools used for performance testing and functional testing.
44. Which of the following is a test design technique?
a) Exploratory testing
b) Ad hoc testing
c) Monkey testing
d) Random testing
Answer: a) Exploratory testing
Explanation: Exploratory testing is a test design technique that involves simultaneous learning, test design, and test execution. Ad hoc testing, monkey testing, and random testing are not test design techniques.
45. Which of the following is a common type of acceptance testing?
a) Alpha testing
b) Beta testing
c) Regression testing
d) Smoke testing
Answer: b) Beta testing
Explanation: Beta testing is a type of acceptance testing that involves testing a software system with a limited group of end-users in a real-world environment. Alpha testing, regression testing, and smoke testing are not types of acceptance testing.
46. Which of the following is a software quality attribute?
a) Load testing
b) Usability
c) Regression testing
d) Boundary value analysis
Answer: b) Usability
Explanation: Usability is a software quality attribute that measures how easy and intuitive a software system is to use. Load testing, regression testing, and boundary value analysis are testing techniques.
47. Which of the following is a functional testing technique?
a) Exploratory testing
b) Load testing
c) Regression testing
d) User acceptance testing
Answer: d) User acceptance testing
Explanation: User acceptance testing is a functional testing technique that involves verifying that a software system meets the requirements of the end-users. Exploratory testing is a test design technique, while load testing and regression testing are types of performance testing.
48. Which of the following is a non-functional testing technique?
a) Usability testing
b) Integration testing
c) Security testing
d) Smoke testing
Answer: a) Usability testing
Explanation: Usability testing is a non-functional testing technique that focuses on evaluating the ease of use and user-friendliness of a software system. Integration testing and smoke testing are types of functional testing, while security testing is a type of testing that focuses on evaluating the security of a software system.
49. Which of the following is a black-box testing technique?
a) Branch coverage testing
b) Statement coverage testing
c) Decision coverage testing
d) Pairwise testing
Answer: d) Pairwise testing
Explanation: Pairwise testing is a black-box testing technique that involves testing all possible combinations of input parameters. Branch coverage testing, statement coverage testing, and decision coverage testing are white-box testing techniques.
50. Which of the following is a common type of regression testing?
a) Smoke testing
b) Sanity testing
c) Re-testing
d) Monkey testing
Answer: c) Re-testing
Explanation: Re-testing is a type of regression testing that involves re-executing previously run tests to verify that previously fixed defects have not reappeared. Smoke testing, sanity testing, and monkey testing are not types of regression testing.
Software testing plays a crucial role in ensuring that software systems are of high quality and meet specified requirements. The Software Testing Questions and Answers that we have accommodated here will assist you in learning about the Software Testing concept clearly. Do follow our Freshersnow to get more updates on technical quizzes and other IT-related articles.