Manual Testing Interview Questions and Answers

Manual testing plays an important role in software development by ensuring that applications work correctly before release. It helps testers identify bugs, improve software quality, and deliver a better user experience. Preparing for interviews requires a good understanding of testing concepts, techniques, and real-world scenarios.

• Covers important manual testing interview questions and answers for 2025.
• Helpful for both beginners and experienced testing professionals.
• Includes testing concepts, methodologies, and practical interview scenarios.

Manual Testing Interview questions for Freshers

1. Explain the Software testing and Manual Software Testing.

Software testing is the process of checking whether a software application works correctly according to requirements. It helps identify bugs, improve quality, and ensure the software performs as expected. Manual testing is a type of software testing where testers manually execute test cases without using automation tools.

• Software testing ensures software quality, reliability, and functionality.
• Manual testing is performed by human testers without automated scripts.
• It helps detect usability issues, bugs, and unexpected behavior in applications.

2. What are the Advantages of Manual Testing?

• Better for Short-Lifecycle Projects: Manual testing is better for projects with short life cycles.
• Time and cost-efficiency: It is better to opt for manual testing for small, easy projects to save time, money, and resources.
• A good product-oriented option for GUI testing: Manual testing can be done accurately for GUI Testing.
• Easy to learn: It is easy to learn for new testers.
• Uses human intelligence: Manual testing allows testers to use their higher cognitive abilities to detect errors. This helps them to find errors that may be missed during automated testing.
• Detect errors outside the code: Manual testing helps testers to locate bugs that do not affect the code such as server response time.

3. What are the Limitations of Manual Testing?

• Time-Consuming: Manual testing takes more time because testers need to execute each test case manually, especially for large and complex applications.
• Prone to Human Errors: Since testing is performed manually, there is a higher chance of mistakes while executing test cases or recording results.
• Difficult to Measure Test Coverage: It becomes challenging to accurately track executed test cases, detected defects, and overall test coverage.
• Higher Cost for Large Projects: Manual testing can become costly for large-scale applications or projects that require frequent testing and releases.

4. What is Quality Control(QC) in testing?

Quality Control is a set of methods that are used by the organization to ensure the quality of software by identifying defects and correcting defects in the developed software.

• It provides the identification of defects.
• It is product-oriented.
• It is a reactive process.
• The testing team is responsible for Quality Control.

5. List key challenges of Manual Testing.

Below are some of the key challenges of manual testing:

• Lack of standard documentation: Lack of standard documentation to understand the application fully to have a better insight into the application makes it difficult for the tester to create test cases for manual testing efficiently.
• Unavailability of skilled testers: Manual testing depends on Human intelligence, and analytical skills to design test cases that can ensure the best coverage.
• Deciding test cases order: It is very important to prioritize, and categorize the test cases and decide the order in which to execute the test cases.
• Ability to know when to stop testing: A tester needs to have product-oriented knowledge and the ability to decide when to stop testing the application to save time and effort.

6. How Manual Testing is different from Automated Testing?

Manual testing is a software testing process in which a tester tests each test case one by one in an individual manner. Whereas in automated testing, the tester utilizes tools and scripts to automate testing efforts. Here are the Difference between Manual and Automated testing.

7. Who is a Manual Tester and What is the work they have to do?

The manual tester is a professional who is responsible for conducting quality checks on the software applications without using automation tools. They are responsible for manually checking the software for errors and fixing them. They must have appropriate skills to be able to meet the company's requirements.

8. What is the role of documentation in Manual Testing?

Documentation plays a vital role in manual testing. It is important to document all steps taken in the testing process to ensure sufficient test coverage and accurate results. It provides an audit trail, which can be used to evaluate past test results and identify areas of improvement. It also serves as a reference for other testers who may be unfamiliar with the system.

9. What are the Priority and Severity in Software Testing?

Priority is the order in which the developer should resolve the defect, on the other hand, Severity is the degree of impact that defect has on the operation of the product.

• Priority indicates how soon the bug is fixed and severity shows the seriousness of the defect on the product functionality.
• Priority is driven by the business values and Severity is driven by the functionality of the product.

10. What is Test Harness?

Test Harness is a collection of stubs, drivers, and other supporting tools that are required to automate the test execution. It executes tests using a test library and generates test reports.

• It helps automate the testing procedures and thus increases the productivity of the system through automation.
• A test harness is a collection of numerous things to test software and report its results.
• It helps developers to measure the cove coverage at a code level.

11. What is a Test Bed?

Test Bed is a test execution environment that is configured for testing. It consists of specific hardware, software, operating system, network configuration, other system software, and application software.

12. What is test data?

Test data is data that is used by test cases to determine if the software working correctly or not. It is collected into a document known as a test data document so that testers can easily access it when they run their tests.

13. What is Test Closure?

Test closure is a document that provides a summary of all the tests covered during the software development lifecycle.

• It includes various activities like test completion reporting, a summary of test results as well and the test completion matrix.
• It gives us an outline of the tests conducted during the software testing and details of the errors and bugs found and resolved during the testing phase.

14. What is Random Testing?

Random testing also known as Monkey Testing is a type of software testing in which the system is tested with the help of generating random and independent inputs and test cases.

• It is performed where the defects are not identified at regular intervals.
• It saves time and effort than actual test efforts.

Manual Testing Questions for Intermediate

In this section, we have compiled the top manual testing interview questions for intermediate. So if you have one or two years of experience, then this section is totally for these types of software testers.

15. What is Defect Cascading?

Defect cascading in software testing means when one defect leads to the discovery of other defects. It often occurs because the original defect was not fixed properly. This cascading causes a chain reaction of errors, making it difficult to source of the problem.

• It can lead to many issues like minor performance slowdowns, system crashes, etc making it a severe risk to developers and testers.
• Understanding defect cascading can help to prevent them from happening in their process.

16. What is a Test Driver?

Test drivers are used in Bottom-up integration testing to simulate the behavior of the upper-level modules that are not yet integrated.

• They act as temporary replacements for a calling module.
• They give the same output as that of the actual product.
• They are used when the software needs to interact with an external system and are usually more complex than stubs.

17. What is a Stub?

Stubs are used in Top-Down integration testing thus increasing the efficiency of the testing process.

• They are developed by software developers to use them in place of modules, if the respective modules are not developed, missing in the developing stage, or currently unavailable.
• It simulates a module that has all the capabilities of the unavailable module.

18. What is Defect Triage?

Defect triage is a procedure that involves detecting and prioritizing problems, allocating them to development, and tracking them.

• The goal is to evaluate, prioritize, and assign the resolution of defects.
• It is also known as bug triage.
• It is based on the severity and priority of the defects in software.

19. What is API Testing?

API testing is a type of software testing that validates APIs. It aims to check the functionality, reliability, performance, and security of the programming interfaces.

• It verifies that the API returns the correct response for different input values.
• It ensures that the different components of a system can communicate with each other correctly and that the system can handle a large volume of requests.

20. What is Alpha Testing?

Alpha Testing is a type of software testing performed to identify bugs before releasing the product to real users or the public. It is one of the user acceptance tests that is done near the end of the development of the software.

• It is generally performed by the homestead software engineers or quality assurance staff.
• It is used to identify and resolve critical bugs and issues in the software before it is released to the public.
• It is performed in a controlled environment like a lab or a test network and is used to simulate real-world use cases.

21. What is Beta Testing?

Beta testing is the process of testing a software product or service in a real-world environment before its official release. It helps identify bugs and errors that may have been missed during the development process.

• During beta testing, the software is made available to a selected group of users who are willing to test the product and provide feedback to the developers.
• The beta testers typically use the software in various ways, attempting to find any issues, bugs, or usability problems.
• They then provide feedback on their experience, reporting any problems or issues encountered.

22. What are the types of Manual Testing?

Manual testing is of the following different types:

• Black box testing: Black box testing is a software testing method that focuses on testing the functionality of the software without dealing with the internal structures or workings.
• White box testing: White box testing is a software testing method that tests the internal structure of the application as opposed to its functionality.
• Unit testing: Unit testing is a software testing method in which the smallest testable parts of the application called units are tested for proper operation.
• System testing: System testing is a software testing method in which the QA team evaluates how the various components of an application interact together in a fully integrated system.
• Integration testing: Integration testing is a type of software testing method in which different modules or units of a software application are tested as a combined entity.
• Acceptance testing: Acceptance testing is a type of software testing method that is performed after system testing and before making the system available for actual use.

23. List the roles and responsibilities of Manual testers.

Below are some of the roles and responsibilities of Manual Tester:

• Analyzing client requirements.
• Reviewing written code for compliance with project specifications and requirements.
• Creating a test environment for executing the test cases.
• Organizing and conducting review meetings.
• Detecting and fixing bugs.
• Monitor system errors and discuss them with the team.

24. Describe Manual Testing Process.

Manual testing is a process of identifying bugs and errors in software without the use of automated tools. Below is the process of manual testing:

• Identify the scope of testing: The first step is to identify the scope of testing and the scope can vary from a functionality to an end-to-end system.
• Design test cases: The next step is to design test cases including test scenarios, data, expected results, and all other details that are necessary to perform the tests on the identified scope.
• Execute test cases: After designing the test cases, testers execute the test cases to find the discrepancies between the actual result and the expected result.
• Record results: Testers should record the results for further analysis.

25. What are the different levels of Manual Testing?

Different levels of Manual Testing are:

• Unit Testing: Unit testing is a process of testing the individual pieces of code within the system called units. The main focus is on the functional accuracy of the standalone modules.
• Integration Testing: Integration testing involves combining and testing the individual units to see if they work together as expected or not.
• System Testing: System testing involves testing all the components of the product as a whole to ensure that overall product requirements are met or not.
• User Acceptance Testing: User Acceptance Testing is the final step in the testing process that determines if the software is ready for release or not.

26. What are the Skills required for Manual Testing?

Some of the important skills required for manual testing are:

• A strong analytical ability.
• Ability to report test results professionally.
• Familiarity with agile methodologies.
• Ability to write test cases for manual testing.
• Knowledge of concepts required for manual testing like SDLC, STLC, SQL, etc.
• Understanding of manual testing tools like JIRA, JMeter, etc.
• Understanding of test management tools and test tracking tools.

27. When to use Manual Testing over Automation Testing?

There are many scenarios when manual testing can be opted over automation testing in a project:

• Adhoc Testing: Adhoc testing can be achieved using manual testing as there is not no specific approach and is performed without planning and documentation. In ad hoc testing the understanding and insight of the tester plays an important role.
• Exploratory test: Exploratory testing depends upon the tester's knowledge, experience, and logical skills, so human involvement is a must here and manual testing is the best choice for exploratory tests.
• Usability testing: In Usability testing human observation plays a very important role as it is measured by the tester how user-friendly, and efficient the software is for the end users. So manual testing is an appropriate choice for usability testing.
• Short lifecycle projects: Automation testing is not appropriate for short-term projects as it requires high investment and planning and manual testing on the other hand aims to save time and resources.

28. What are Manual Testing Tools?

Manual testing is a software testing method in which the tester manually executes the test cases without the use of automated technologies. The tools that help in this process are known as manual testing tools. Some examples of manual testing tools are Bugzilla, JMeter, JIRA, etc.

Manual Testing Interview Questions for Experienced

This section contains manual testing interview questions for experienced. So, if you have years of experience and are looking for change, then explore this section. Here you will find all the interview questions for the software testing experience profile.

29. List some Manual Testing Tools.

Below are some of the commonly used Manual Testing tools:

• Trac: Trac is one of the most powerful manual testing tools that is developed in Python and is a web-based program. It is compatible with a variety of databases like SQLite, MySQL, MS-SQL, etc.
• TestLink: TestLink is a high-quality product that has more functions in a comparable package. It is simple to use as the program is available to use through a browser.
• JMeter: JMeter is an open-source tool for performance testing of static and dynamic resources and dynamic web applications. It has an easy-to-use and clear interface accepting JVMs from Windows, Mac OS X, Linux, and other platforms.
• Bugzilla: Bugzilla is an open-source application that helps customers and clients to keep track of issues. It has a simple-to-use Google-style bug search that also searches the complete text of a bug.
• Load Runner: It is the most commonly used performance testing tool that is used to categorize the most prevalent causes of performance problems rapidly. It is compatible with a variety of development tools and protocol stacks and it helps to lower the cost of distributed load testing.

30. What are the best practices for writing test cases for Manual Testing?

Below are some of the best practices that can be followed for writing the test cases:

• Prioritize test cases: Prioritize which test cases to build based on the application's risk considerations and project timeframes.
• Follow the 80/20 rule: To ensure sufficient coverage, it is better to have 20% of the test cases cover 80% of the application.
• Categorize test cases: List all the test cases and categorize the test cases according to business scenarios and functionality.
• Design modular test cases: Make sure that the test cases are modular and as detailed as possible.
• Remove duplicate test cases: Remove irrelevant and duplicate test cases.

31. Can Automation Testing replace Manual Testing?

Automation testing cannot completely replace Manual testing as it is not possible to automate everything. Manual testing can be used in situations where automation isn't possible. Both automated and manual testing have their advantages and disadvantages.

32. List the differences between the Test Case and Test Scenario.

33. What is Smoke Testing?

Smoke testing also known as Build Verification Testing is a software testing method that is performed at the beginning of the development process to make sure that the most critical functions of the software applications are working correctly.

• It is done to quickly identify and fix the major issues before more detailed testing is performed.
• The goal is to determine whether the build is stable enough to proceed with further testing.

34. What is Regression Testing?

Regression testing is a software testing process of testing previously tested programs to ensure that the defects have not been introduced or uncovered in unchanged areas of the software as a result of the changes made in the software.

35. List the differences between Sanity Testing and Smoke Testing.

36. What is Top-Down Integration Testing?

Top-down integration Testing is an Integration testing technique in which testing is done by integrating two or more modules by moving down from top to bottom through the control flow of the architecture structure.

• High-level modules are tested first and then the low-level modules are tested.
• Stubs are the modules that act as temporary replacements for the called module.

37. List the differences between Regression and Retesting.

38. List some Test Management Tools.

• QACoverage: A cost-effective test management tool that improves QA productivity and provides complete traceability between requirements, test cases, and defects.

• TestRail: A web-based tool used to organize test cases, manage test execution, and generate real-time testing reports and insights.
• SpiraTest: A test management platform that helps agile teams manage requirements, test cases, and defects in one place.
• Testiny: A lightweight and user-friendly tool designed to simplify manual testing and QA management processes.
• TestMonitor: An end-to-end testing tool that supports advanced test case management, result tracking, and smart reporting features.

39. What is Bug Lifecycle?

Bug Life Cycle, also known as Defect Life Cycle, is the process through which a defect or bug passes during its entire life, from identification to closure. The diagram below represents the workflow of the Defect Life Cycle.

States in the Defect Life Cycle

• New: When a tester identifies a new defect, it is marked as New. This is the initial stage of the bug life cycle.
• Assigned: The newly identified defect is reviewed and assigned to the development team for fixing.
• Open: In this stage, developers analyze and work on fixing the defect. If the defect is not valid or cannot be fixed immediately, it may be moved to Rejected or Deferred status.
• Fixed: After making the necessary code changes, the developer marks the defect as Fixed.
• Pending Retest: Once the fix is completed, the updated application is sent to the testing team for retesting, and the defect status becomes Pending Retest.
• Retest: The tester retests the application to verify whether the defect has been fixed successfully.
• Reopened: If the defect still exists after retesting, the tester changes the status to Reopened, and the defect cycle starts again from the Open state.
• Verified: If the tester confirms that the defect is fixed and no issue remains, the defect is marked as Verified.
• Closed: This is the final stage of the Defect Life Cycle. After successful verification, the tester marks the defect as Closed.

40. List some Bug Tracking Tools.

• Jira: Jira is a widely used bug-tracking and project management tool. It helps teams track defects, manage workflows, generate reports, and monitor software issues efficiently.

• BugHerd: BugHerd is a simple tool for tracking website issues and collecting feedback. It captures screenshots, browser details, operating system data, and CSS information to help reproduce and fix bugs quickly.
• Bugzilla: Bugzilla is an open-source bug-tracking tool used to manage and track software defects. It also integrates with test management tools like ALM and Quality Center.
• Axosoft: Axosoft is a bug-tracking and Scrum project management tool that supports both cloud-hosted and on-premises applications.
• Backlog: Backlog is a web-based bug tracking and project management tool for development teams. It offers features like subtasks, status tracking, and mobile app support.

41. List the differences between Quality Assurance (QA) and Quality Control (QC).

42. What is Pesticide Paradox?

Pesticide paradox means if the same tests are repeated over and over again then the same test cases will no longer find new bugs. Some of the methods to prevent pesticide paradoxes are to write a whole new set of test cases to exercise different parts of the software or to prepare new test cases and add them to the existing test cases.

43. What is a Critical Bug?

A critical bug is a bug that tends to affect the majority of the functionality of the given application or software. The software cannot be released unless the critical bug is addressed.

44. What makes a good test engineer?

A good test engineer should have the following traits:

• Detail Oriented and organized.
• Has excellent problem-solving skills.
• Has strong communication and collaboration skills.
• A good test engineer must be up to date on the latest technologies.

45. List the differences between Alpha testing and Beta testing.