Introduction: Why Candidates Search for Top 50 Manual Testing Interview Questions
when preparing for a QA or software testing interview, one search term appears again: top 50 manual testing interview questions.
The reason is simple.
Manual testing interviews are unpredictable. Interviewers can ask:
- Basic theory questions
- Practical, real-time manual testing questions
- Scenario-based questions
- Project and experience-based questions
Candidates search for top 50 manual testing interview questions because they want:
- A focused list (not too long, not too short)
- Coverage of interview questions for QA roles
- Confidence before interviews
- Real examples with easy answers
Whether you are a fresher, a manual tester with 1–3 years of experience, or someone revising before a job switch, this guide will help you prepare smartly and effectively.
Why Manual Testing Interview Preparation is Important
Today, companies expect QA testers to:
- Understand software testing concepts
- Identify bugs effectively
- Write and execute test cases
- Handle real-time scenarios
- Communicate clearly with developers and teams
This is why preparing top 50 manual testing interview questions is extremely important before attending interviews.
What is Manual Testing? (Simple Definition with Example)
Manual Testing is the most fundamental approach in the Software Testing Life Cycle (STLC). It is the process of manually testing software applications without the use of automation tools. The tester acts as the end-user and validates whether the software behaves as expected. Despite the growth of automation testing, manual testing remains essential because it helps in identifying usability issues, visual inconsistencies, and unexpected behavior that automation tools may miss.
In this article, we’ll cover the basics of manual testing, different types of manual testing, and examples to understand how it works in real-life projects.
Basics of Manual Testing
Manual Testing focuses on ensuring that the application is functioning correctly based on the given requirements. Here are the core fundamentals:
1. No Automation Tools Used
Testers execute test cases manually, step by step.
Tools like JIRA, Bugzilla, and Trello are used for tracking defects, but execution is done without code/scripts.
2. End-User Perspective
The tester plays the role of the actual user.
Validates both functionality and user experience.
3. Test Documentation
Includes Test Plan, Test Cases, Test Scenarios, and Bug Reports.
Example of a simple test case format:
4. Validation and Verification
Verification: Making sure the product is constructed appropriately (in accordance with specifications).
Validation: Making sure the appropriate product is created for the final consumer.
Manual Testing Types
Depending on the requirements of the project, manual testing uses a variety of testing techniques. The most typical kinds are listed below:
1. Unit Testing
Performed individual components or modules.
Developers usually do it, but manual testers may validate test data.
2. Integration Testing
ensures to work together two or more units.
Example: Testing that the user dashboard and login page work together.
3. System Testing
validates the application as a whole.
An e-commerce app’s overall testing, from login to checkout, is an example.
4. Smoke Testing
Build Verification Testing be another word on it.
A quick check to make sure the fundamental features are operational.
For example, checking if an app installs correctly and opens without crashing.
5. Sanity Testing
narrow and targeted testing after small changes.
Example: The tester only rechecks login after resolving a login bug.
6. Regression Testing
ensures that new changes do not cause problems with existing features.
Example: The tester rechecks the dashboard and login after adding an “Forgot Password” feature.
7. Usability Testing
emphasizes experience and user-friendliness.
Example: Verifying that the “Sign Up” button is accessible and visible.
8. Acceptance Testing
This is done to confirm that the application satisfies business needs.
often carried out during the User Acceptance Testing (UAT) stage.
9. Exploratory Testing
No predefined test cases; the tester explores the app.
Helps in finding unexpected defects.
10. Ad-hoc Testing
informal testing that is not recorded.
Example: Randomly trying invalid inputs to check system stability.
Instances of Manual Testing in Actual Projects
Example 1: Testing a Login Page
Scenario: A banking application login page.
Test Cases:
Enter correct username & password → Should login successfully.
Enter wrong password → Should show error message.
Leave fields empty → Should not allow login.
Check “Forgot Password” link → Should redirect properly.
Example 2: E-Commerce Checkout Flow
Scenario: Online shopping cart.
Test Cases:
Add items to cart → Items should be reflected in cart.
Apply discount coupon → Correct discount applied.
Enter invalid credit card → Show payment error.
Successful payment → Generate order confirmation email.
Example 3: Social media mobile app testing scenario.
Test Cases:
App installation on Android & iOS.
Navigation in portrait & landscape mode.
Upload image/video functionality.
push alerts and notifications.
Why Companies Ask Manual Testing Interview Questions
1. Real project exposure
They want to know: Have you actually worked on real applications?
Not just theory. You should be able to explain:
- What project you worked on
- What features you tested
- What problems you faced
Basically: “Have you seen real bugs, real deadlines, real pressure?”
2. Defect analysis and communication
Not just finding bugs — but:
- Can you understand why the bug happened?
- Can you explain it clearly to developers without confusion or fights?
Good QA = clear communicator, not just bug reporter.
3. Test planning ability
They expect you to think ahead:
- What should be tested first?
- What can be skipped if there is less time?
- What is critical vs optional?
This shows you’re not blindly testing — you’re thinking.
4. Ownership mindset
This is very important.
Instead of saying: “I tested my part”, you should think:
- “Is this feature really ready for user?”
- “Did we miss any edge cases?”
You act like the feature is your responsibility, not just a task.
5. Risk-based testing skills
You won’t have time to test everything. So:
- Focus on high-risk areas (payments, login, core features)
- Less focus on low-impact areas
This shows maturity and smart decision-making.
At this level, companies expect you to act like a feature owner, not a test executor.
Real Workplace Angle
In real projects:
- Requirements are unclear
- Developers push urgent fixes
- Clients change expectations
Interviewers want testers who can think practically, not just reciting definitions.
Top 50 Manual Testing Interview Questions (With Simple Answers)
Below is a carefully selected list of top 50 manual testing interview questions, grouped for easy understanding and quick revision.
A. Basic Manual Testing Interview Questions (1–15)
1. What is software testing?
Software testing is the process of evaluating a system with the intent of finding bugs. It is performed to check if the system satisfies its specified requirements and quality standards. It evaluates the system to validate its functionality.
Testing measures the system’s overall quality in terms of correctness, completeness, usability, performance, and other functional and non-functional attributes.
Software testing is not associated with uncovering potential bugs or defects. It also involves finding measures to improve the system’s efficiency and accuracy.
Basically, software testing is the combination of verification and validation.
2. What is manual testing?
Manual Testing is the most fundamental approach in the Software Testing Life Cycle (STLC). It is the process of manually testing software applications without the use of automation tools. The tester acts as the end-user and validates whether the software behaves as expected. Despite the growth of automation testing, manual testing remains essential because it helps in identifying usability issues, visual inconsistencies, and unexpected behavior that automation tools may miss.
In this article, we’ll cover the basics of manual testing, different types of manual testing, and examples to understand how it works in real-life projects.
Basics of Manual Testing
Manual Testing focuses on ensuring that the application is functioning correctly based on the given requirements. Here are the core fundamentals:
1. No Automation Tools Used
Testers execute test cases manually, step by step.
Tools like JIRA, Bugzilla, and Trello are used for tracking defects, but execution is done without code/scripts.
2. End-User Perspective
The tester plays the role of the actual user.
Validates both functionality and user experience.
3. Test Documentation
Includes Test Plan, Test Cases, Test Scenarios, and Bug Reports.
Example of a simple test case format:
4. Validation and Verification
Verification: Making sure the product is constructed appropriately (in accordance with specifications).
Validation: Making sure the appropriate product is created for the final consumer.
Manual Testing Types
Depending on the requirements of the project, manual testing uses a variety of testing techniques. The most typical kinds are listed below:
1. Unit Testing
Performed individual components or modules.
Developers usually do it, but manual testers may validate test data.
2. Integration Testing
ensures to work together two or more units.
Example: Testing that the user dashboard and login page work together.
3. System Testing
validates the application as a whole.
An e-commerce app’s overall testing, from login to checkout, is an example.
4. Smoke Testing
Build Verification Testing be another word on it.
A quick check to make sure the fundamental features are operational.
For example, checking if an app installs correctly and opens without crashing.
5. Sanity Testing
narrow and targeted testing after small changes.
Example: The tester only rechecks login after resolving a login bug.
6. Regression Testing
ensures that new changes do not cause problems with existing features.
Example: The tester rechecks the dashboard and login after adding an “Forgot Password” feature.
7. Usability Testing
emphasizes experience and user-friendliness.
Example: Verifying that the “Sign Up” button is accessible and visible.
8. Acceptance Testing
This is done to confirm that the application satisfies business needs.
often carried out during the User Acceptance Testing (UAT) stage.
9. Exploratory Testing
No predefined test cases; the tester explores the app.
Helps in finding unexpected defects.
10. Ad-hoc Testing
informal testing that is not recorded.
Example: Randomly trying invalid inputs to check system stability.
Instances of Manual Testing in Actual Projects
3. Why is software testing important?
Software testing is important because it ensures a software application works correctly before users interact with it. Without testing, a software product may contain hidden defects that affect functionality and reliability.
Testing software helps development teams confirm that the software system performs according to specified requirements. It also prevents costly errors and improves overall software reliability.
Thorough testing allows organizations to deliver a high-quality product that meets user expectations. In modern software development, testing has become a critical part of the development process.
4. What is a bug or defect?
A bug in software testing refers to an error in the code that causes the software to behave differently than expected. It occurs when the actual result of a function does not match the expected result during any stage of development.
In simpler terms, a bug is an issue that prevents a software system from working correctly. These errors can be found at any phase, from coding to integration testing, and they can lead to major issues if not detected early.
5. What is a test case?
A test case is a set of actions performed on a system to determine if it satisfies software requirements and functions correctly. The purpose of a test case is to determine if different features within a system are performing as expected and to confirm that the system satisfies all related standards, guidelines, and customer requirements. The process of writing a test case can also help reveal errors or defects within the system.
Test cases are typically written by members of the quality assurance (QA) team or the testing team and used step-by-step instructions for each system test. The testing process begins once the development team has finished a system feature or set of features. A sequence or collection of test cases is called a test suite.
6. What is a test scenario?
A high-level description of a functionality that must be tested is called a test scenario. Sometimes referred to as a test situation, it represents a possible user interaction or system behavior. Put yourself in the end user’s position as a tester and identify the application under test’s (AUT) real-world scenarios and use cases.
Test scenarios can be classified based on what aspect of the application they aim to verify. Understanding these types ensures full coverage of all functionality and user interactions.
Various Test Scenario Types
Functional Scenarios: These verify if particular modules or features (such as login, signup, or checkout) work according to requirements. They focus on “what it should do.”
Non-Functional Scenarios: These assess the system’s performance, scalability, usability, and reliability rather than what it does.
Security Scenarios: These evaluate how well the program guards user information and stops vulnerabilities or illegal access.
UI (User Interface) Scenarios: These ensure the interactive elements, navigation, and visual layout work naturally on various screens and devices.
End-to-End Scenarios: These simulate real -world workflows and verify that several modules cooperate smoothly. An eCommerce app search, cart addition, and payment completion are a few examples.
7. What is verification and validation?
| Key | Verification | Validation |
| Definition | Verification is the process in which product or system is evaluated in the development phase to find out whether it meets the specified requirements or not. | Validation is the process in which a product or system is evaluated at the end of the development process to determine whether software meets the customer’s expectations and requirements or not. |
| Objective | The main objective of Verification process is to make sure that the system being developed is as per the requirements and design specifications of the customer and if it deviates from it then make it correct in the development phase itself. | The objective of Validation is to make sure that the product which has been developed actually meets the user’s requirements or not. And if it is not then making it to the level of acceptance in the development phase. |
| Activities | Main activities which define the Verification process are Reviews of specification and product development, Meetings about diversification and inspections. | Activities under Validation process are typically different types of testing such as Black Box testing, White Box testing, grey box testing etc. which ensure the defect free delivery of product as per specification document. |
| Type | Verification is the process where execution of code is not taking place and hence it comes under static testing. | During Validation, execution of code takes place and thus it comes under dynamic testing. |
| Sequence | Verification is carried out before the Validation. | Validation is carried out just after the Verification |
| Performer | Verification is carried out by the Quality Assurance team. | Validation is executed on software code with the help of the testing team. |
8. What is STLC?
- The Software Testing Life Cycle (STLC) is a structured framework that guides testing from initial requirements through final validation and retrospective. Instead of treating testing as an afterthought, STLC makes it a disciplined, repeatable process that catches issues before they reach users. Its core phases stay consistent across Scrum, Kanban, and Waterfall, making it adaptable to virtually any team.
- For modern teams building AI-driven systems, execution depends on having the right people in place. Platforms like Fonzi AI help companies quickly hire experienced engineers and QA specialists who can implement automated, STLC-aligned workflows, so recruiters and technical leaders can build reliable systems without sacrificing speed.
9. What are STLC phases?
There are several phases involved in the STLC, and the key phases are:
Requirement Analysis:
In this phase, the software requirements are analyzed and documented. This involves understanding the client’s requirements, identifying the scope of the project, and determining the testing objectives.
Test Planning:
In this phase, the testing team prepares a test plan that outlines the approach, resources, and schedule for the testing process. This includes identifying the software testing types, techniques, tools, and environments to be used, as well as defining the roles and responsibilities of the team members.
Test Design:
In this phase, the testing team designs the test cases, scenarios, and scripts based on the requirements and test plan. This includes identifying the input data, expected outcomes, and validation criteria for each test case.
Test Execution:
In this phase, the testing team executes the test cases, scenarios, and scripts according to the test plan. This involves running the tests and recording the results, as well as identifying and reporting defects.
Test Reporting:
In this phase, the testing team prepares test reports that summarize the testing process and results. This includes documenting the test cases executed, defects found, and overall quality of the software product.
Test Closure:
In this phase, the testing team evaluates the testing process and the software product against the testing objectives and criteria. This involves reviewing the test reports, identifying areas for improvement, and making recommendations for future testing activities.
10. What is smoke testing?
Smoke testing checks the basic functionality of a software program. Its purpose is to test whether the software can perform the tasks it’s designed to carry out without “smoking,” or failing.
Ideally, teams should run smoke tests at key checkpoints in the QA workflow (for example, after a new build or deployment to a test environment). Together with sanity testing, smoke testing is a great way to make sure that the software performs its basic functions after each update.
11. What is sanity testing?
Sanity Testing
Sanity testing is a narrow, high-level check performed after small code changes such as bug fixes or minor enhancements. This focused testing helps verify that the specific functionality affected still works correctly.
Purpose of Sanity Testing
- Verifies that recent changes have not broken the related functionality
- Ensures the application is stable enough for further testing
- Acts as a quick validation step before proceeding
Role in Testing Process
- Serves as a checkpoint to decide whether deeper testing (like full regression) is necessary
- Helps teams avoid wasting time on unstable or broken builds
- Supports efficient test execution by focusing only on impacted areas
12. What is regression testing?
Regression Testing is defined as a type of software testing to confirm that a recent program or code change has not adversely affected existing features. We can also say it is nothing but a full or partial selection of already executed test cases that are re-executed to ensure existing functionalities work fine.
This type of testing is done to ensure that new code changes do not have any side effects on existing functionalities. It ensures that the old code still works once the latest code changes are done.
13. What is retesting?
Retesting in Software Testing
Retesting is a crucial software testing process where specific test cases are executed again to ensure that defects identified in previous tests have been fixed correctly. It helps verify that the modifications or bug fixes have not introduced new issues.
Retesting guarantees the reliability and quality of the software before its release.
Purpose of Retesting
- Ensures that previously identified defects are fixed correctly
- Verifies that bug fixes have not introduced new issues
- Confirms the stability of the affected functionality
- Improves overall software quality before release
Role in Defect Life Cycle
- Retesting is part of the defect life cycle
- It involves testing of failed test cases that were non-functional during earlier testing
- These test cases are executed again after developers fix the defects
- Ensures that the defect is completely resolved before closure
14. What is black box testing?
Black box testing examines software functionality without examining its internal code structure. In this approach, testers interact with applications just as end users would, verifying that the system behaves according to requirements.
Also known as closed-box testing, this technique ensures applications fulfill their functional expectations regardless of how they’re coded.
Consider a simple login page black box testing example:
- You enter a username and password, then click the login button
- You then see what happens next
- If credentials are correct, the system should grant access and display the dashboard
- If details are incorrect, it should present an appropriate error message (like “Invalid credentials”)
Throughout this process, testers never examine the underlying authentication code or password verification logic.
Instead, they focus exclusively on what goes in (input) and what comes out (output). This forms the essence of black box testing: treat the application as a sealed box, provide various inputs, and assess whether the outputs align with expected results.
15. What is white box testing?
The white box testing is a procedure that includes verification of the internal structure, and logic of the software. A tester who is in charge of this has complete access to the source code. He uses his knowledge of the internal working of the software, and his technical skills to create tests that can validate the code. The software for white box testing is also called transparent testing, open box testing, structural testing, or code-based testing.
The verification of the software interior algorithm, flow, and structure is the main objective of the white box testing. The white box test cases cover the different paths of the code, and logic to ensure that the user’s specifications are met.
B. Test Case & Defect-Related Questions (16–30)
16. What makes a good test case?
A good test case helps testers verify whether an application works correctly and meets the expected requirements.
Key Characteristics of a Good Test Case
- Clear and easy-to-understand steps
- Valid and accurate test data
- Well-defined expected results
- Proper preconditions and assumptions
- Reusable and maintainable structure
- Coverage of positive and negative scenarios
Clear Steps
The test steps should be simple, detailed, and easy for any tester to follow without confusion.
Valid Test Data
Using proper test data helps ensure accurate testing of application functionality.
Expected Results
Expected results should clearly describe what the application should do after executing the test steps.
Reusable and Maintainable
A good test case should be easy to update and reuse for future testing cycles.
Covers Different Scenarios
It should include:
- Positive test scenarios
- Negative test scenarios
- Boundary value conditions
- Error validations
Example of a Good Test Case
Test Scenario
Verify user login functionality.
Test Steps
- Open the login page
- Enter valid username and password
- Click the Login button
Test Data
- Username: testuser
- Password: Test@123
Expected Result
User should successfully log in and navigate to the dashboard.
17. What details are included in a test case?
- Test case id
- Unit to test: What to be verified?
- Assumptions
- Test data: Variables and their values
- Steps to be executed
- Expected Result
- Actual result
- Pass/Fail
- Comments
18. What is a bug report?
A bug report is a document created by a tester to describe a defect found in an application.
It helps developers understand, reproduce, and fix the issue efficiently.
19. What details are included in a bug report?
- Write a Clear Title: Summarize the issue in a short and descriptive statement.
- Provide Environment Details: Mention browser, device, OS, and application version where the bug occurs.
- Add Steps to Reproduce: List the exact actions required to trigger the bug.
- Describe Expected Result: Explain how the application should behave normally.
- Explain Actual Result: Clearly state what incorrect behavior occurs.
- Set Severity and Priority: Indicate the impact of the bug and how urgently it should be fixed.
- Attach Supporting Evidence: Include screenshots, logs, or recordings to help reproduce the issue quickly.
20. What is defect lifecycle?
- The defective life cycle (also called bug life cycle) is the sequence of states a software defect passes through from initial discovery until final closure. Every defect follows a defined path: it gets reported, assigned, fixed, verified, and closed.
- Understanding this cycle matters because it directly affects how quickly your team resolves issues and how reliably your software performs. Teams that manage defects well ship better products faster. Teams that do not end up with confused developers, frustrated testers, and buggy releases.
- This guide covers everything you need to manage defects effectively: the standard states and transitions, how to distinguish severity from priority, writing defect reports that developers can use, and selecting the right tools for your team.
21. What is severity?
Severity is the degree of impact that a defect has on the operation of the product.
22. What is priority?
Priority is the order in which the developer should resolve a defect .
23. Difference between severity and priority?
- We have talked about various forms of both terms. Now, let’s look at the key differences which make them distinct.
- The term severity defines, to what degree the system is impacted. Whereas priority is all about scheduling or urgency.
- Usually, it is the test engineer who determines severity. While the product owners decide the priorities of defects.
- It is very unlikely that severity might change. Whereas the priorities change from time to time.
- Severity is usually determined from a technical point of view. Whereas priority depends upon the user experience.
- The severity affects the technical working of the system. Whereas the latter affects business.
- Severity and Priority Real-time Examples
- The priority and severity are combined in four different ways to determine which defect needs immediate attention and which one the least. Let’s look at some real-time examples to make this concept even more clear.
- High Priority and High Severity Examples
- The products added to the cart of an e-commerce website are not visible on the payment page.
- The login button of the application is not working.
- High Priority and Low Severity Examples
- The logo of the company’s welcome page is distorted.
- The action buttons are not visually appealing, or the information on the page appears hazy.
- Low Priority and High Severity Examples
- If the application is crashing on passing very large input for processing (which is very rarely done).
- There are some buttons on the website which are overlapping. Although clickable, create a fuss.
- Low Priority and Low Severity Examples
- A spelling mistake on the page of the site which is not frequently visited.
- The color of any text does not match the theme of the website.
24. What is a rejected defect?
A rejected defect is a bug report that developers or the team do not accept as a valid defect.
This means the reported issue is not considered an actual bug in the application.
25. What is a duplicate defect?
A duplicate defect is a bug that has already been reported by another tester or team member.
Instead of creating a new defect, the existing defect report is reused for tracking and fixing the issue.
26. What is a deferred defect?
A deferred defect is a bug that is identified and reported but postponed for fixing to a later release or future version of the application.
The defect is valid, but the team decides not to fix it immediately.
27. What is defect leakage?
Defect leakage is a situation where defects are not identified during the testing phase and are found later by users or customers in the production environment.
It means the defect “leaked” from the testing phase into the live application.
28. What is defect triage?
Defect triage is the process of reviewing, analyzing, prioritizing, and assigning defects based on their severity, priority, and business impact.
It helps the team decide which defects should be fixed first.
29. What is test coverage?
Test coverage is a measurement that shows how much of the application functionality, requirements, or code has been tested.
It helps ensure that all important features and scenarios are validated during testing.
30. What is traceability matrix?
A Traceability Matrix, also called a Requirement Traceability Matrix (RTM), is a document used to map and track requirements with corresponding test cases.
It helps ensure that all requirements are properly tested.
C. Real-Time Manual Testing Interview Questions (31–40)
31. How will you test a login page?
Testing a login page is one of the most common manual testing interview questions.
The goal is to verify whether the login functionality works correctly, securely, and provides a good user experience.
Important Login Test Scenarios
Valid Login
Test the application using the correct username and password credentials.
Brief Explanation
This verifies whether authorized users can successfully log in and access the application.
Invalid Login
Test the login functionality using incorrect username or password combinations.
Brief Explanation
This ensures the application properly rejects invalid users and displays appropriate error messages.
Empty Fields
Try logging in without entering username or password values.
Brief Explanation
This checks whether mandatory field validations are working correctly.
Password Masking
Verify whether the password field hides entered characters.
Brief Explanation
Password masking protects sensitive user information and improves security.
Forgot Password Link
Click the forgot password link and verify the reset password process.
Brief Explanation
This ensures users can recover their accounts if they forget their password.
32. What will you do if requirements are unclear?
1. Learn to understand the system
You can learn more about the system by using it as an end-user and comprehending its purpose. In this case, you can simply grasp its primary features or conduct some exploratory testing, which is “an approach to software testing that is often described as simultaneous learning, test design, and execution.” It emphasizes discovery and depends on the individual tester’s instruction to find flaws that are difficult to find. All you have to do is become familiar with the system, create a few test cases, and run them.
2. Search for related projects
Look for projects that do comparable tasks to the system you plan to test. For instance, if you are testing an e-commerce system, look for some e-commerce sites and test them out. If the “Add to Cart” button doesn’t make sense to you, try it on another project.
3. Attending meetings and asking questions
Asking questions and holding meetings with the project manager, developers, designers, and other stakeholders can help you learn a lot. It’s best to prepare your system-related questions in advance so you can learn more in less time.
Questions may include, but are not restricted to:
What is the system’s primary goal?
Who are the primary users?
Do any personas exist?
Which are the system’s primary modules? and what is expected of them all?
Inquire about the anticipated behavior of a certain function with the project manager, product owner, or developer.
You can ask a lot of questions here to learn important details about the system.
4. Any document would be helpful.
No requirements, no problem, but you might benefit from other documents instead of the requirements, such as:
You can better comprehend the system’s primary items and their relationships by using the database schema.
The schematics of data flow
Your eyes will be opened to the entire system via the business model.
In this situation, use cases are crucial since they illustrate the primary users and how they engage with the system.
5. Apply your prior knowledge and common sense
Based on your prior work expertise or your experience using certain systems, you can easily define the expected behavior of many functions. Common sense will also be helpful.
As a tester, you can steer clear of such issues in the future by honing your skills by experimenting with and exploring various applications in various domains. Even if this is a new project for you, doing so will broaden your experience and provide you with practical experience in various domains, making it easier for you to handle a project without requirements.
For the most common projects and functions, try to make your own checklists beforehand. For example, the Login function’s expected behavior is very common, so defining it beforehand will save you a lot of time in your upcoming projects and give you more time to concentrate and learn new functions. This also applies to your previous projects; recording your experience after each project will be invaluable in the future.
Lastly, testing without requirements isn’t that hard, but it requires more tolerance and adaptability to develop your own resources and expertise so that it can be managed with ease.
33. How do you prioritize test cases?
When prioritizing test cases, it’s important to categorize them based on their impact and importance. Here are five common test case priority levels:
Priority Level 0: Critical
These are the most important test cases. They test features that are crucial to the system’s core functionality. If these tests fail, the application may become unusable or unstable, which can delay releases.
For example, sanity checks, login systems, payment processing, and end-to-end critical flows fall under this category. These tests should always be run first and immediately.
Priority Level 1: High
Test cases in this level are important but not as critical as Level 1. Their failure won’t immediately break the application or block release, but it can still impact the user’s experience.
Regression suites for key modules, such as user profile management or product search functionality, would fall into this category. These tests should be run after the critical tests are verified.
Priority Level 2: Medium
Medium priority test cases focus on features that are important or standard functional tests but have less immediate impact if they fail.
These may include non-essential UI elements or features that users interact with less often, such as API validations. While their failure won’t break the application, it can still affect the overall user experience.
Priority Level 3: Low
These are low-priority or edge-case test cases. They cover minor features or edge cases that are rarely used.
Examples include cosmetic changes, settings, or rare error-path scenarios that don’t impact core functionality. You can execute these tests last or when time permits, as they are least likely to affect the application.
Priority Level 4: Trivial/Informational
Trivial or informational priority test cases are executed on a “nice to know” basis and not on “must know before release”. The nature of P4 test cases is non-blocking, exploratory, and future-oriented, with resource flexibility.
These test cases may include data migration validation to verify all customer records are migrated from legacy systems to the new systems with correct mappings, spot check large-volume data loading, check data stability on 24-hour soak testing for customer analytics pipeline, or trying out an unreleased feature branch to see how the new UI components might behave.
34. What will you do if time is very limited?
1. Smoke Testing First
Start with smoke testing to check whether the build is stable. Verify basic functionalities like login, navigation, and core flows. If smoke fails, immediately report and stop further testing.
2. Critical Functionality Testing
Next, focus only on high-priority and business-critical features (e.g., payments, data saving, main workflows). Skip low-priority or cosmetic test cases for now. The goal is to ensure that the most important parts of the application are working.
3. Communicate Risks to Manager
Clearly inform your manager/stakeholders about:
Limited testing due to time constraints
Areas not tested
Potential risks or defects found
This ensures transparency and helps in making release decisions.
35. How do you ensure test coverage?
Here are proven ways to improve test coverage without adding unnecessary work:
- Start with a Coverage Report: Use tools to find untested parts of your code.
- Automate Regression Tests: Automated tests save time and increase consistency.
- Prioritize High-Risk Areas: Don’t try to test everything equally. Focus on what matters most.
- Write Better Test Cases: Think about edge cases, boundary values, and real usage.
- Use Pairwise Testing: It helps cover combinations of inputs with fewer tests.
- Review Tests Regularly: Keep them aligned with code changes.
- Test Across Devices and Browsers: This is key for web and mobile apps. Incorporate browser testing to ensure consistent user experiences across different browsers and use compatibility testing to verify your software works correctly on various devices, operating systems, and environments.
- Leverage Code Reviews: Encourage devs to write tests alongside features.
- Train Your Team: Help them understand what good coverage looks like.
36. How do you test without test cases?
1. Learn to understand the system
You can learn more about the system by using it as an end-user and comprehending its purpose. In this case, you can simply grasp its primary features or conduct some exploratory testing, which is “an approach to software testing that is often described as simultaneous learning, test design, and execution.” It emphasizes discovery and depends on the individual tester’s instruction to find flaws that are difficult to find. All you have to do is become familiar with the system, create a few test cases, and run them.
2. Search for related projects
Look for projects that do comparable tasks to the system you plan to test. For instance, if you are testing an e-commerce system, look for some e-commerce sites and test them out. If the “Add to Cart” button doesn’t make sense to you, try it on another project.
3. Attending meetings and asking questions
Asking questions and holding meetings with the project manager, developers, designers, and other stakeholders can help you learn a lot. It’s best to prepare your system-related questions in advance so you can learn more in less time.
Questions may include, but are not restricted to:
What is the system’s primary goal?
Who are the primary users?
Do any personas exist?
Which are the system’s primary modules? and what is expected of them all?
Inquire about the anticipated behavior of a certain function with the project manager, product owner, or developer.
You can ask a lot of questions here to learn important details about the system.
4. Any document would be helpful.
No requirements, no problem, but you might benefit from other documents instead of the requirements, such as:
You can better comprehend the system’s primary items and their relationships by using the database schema.
The schematics of data flow
Your eyes will be opened to the entire system via the business model.
In this situation, use cases are crucial since they illustrate the primary users and how they engage with the system.
5. Apply your prior knowledge and common sense
Based on your prior work expertise or your experience using certain systems, you can easily define the expected behavior of many functions. Common sense will also be helpful.
As a tester, you can steer clear of such issues in the future by honing your skills by experimenting with and exploring various applications in various domains. Even if this is a new project for you, doing so will broaden your experience and provide you with practical experience in various domains, making it easier for you to handle a project without requirements.
For the most common projects and functions, try to make your own checklists beforehand. For example, the Login function’s expected behavior is very common, so defining it beforehand will save you a lot of time in your upcoming projects and give you more time to concentrate and learn new functions. This also applies to your previous projects; recording your experience after each project will be invaluable in the future.
Lastly, testing without requirements isn’t that hard, but it requires more tolerance and adaptability to develop your own resources and expertise so that it can be managed with ease.
37. How do you handle production bugs?
1. Stay Calm
If a bug arises in production, the first thing a tester should do is stay calm. It is critical not to panic and to take your time assessing the situation before taking any action.
Following the identification of the problem, immediate action must be taken to address the issue and prevent further damage or disruption of services. It’s also important to keep track of any changes made and test them thoroughly before releasing them into production.
2. Identify the Severity of the Bug
It is important to Identify the Severity of the Bug, this could help in determining how quickly it should be addressed and what resources are required for resolution. After determining the severity of the bug, testers should document every relevant detail about it, including steps taken to reproduce it, environment details, expected versus actual results, and so on.
They should then report their findings to developers so that they can investigate further and work on resolving any issues that have been identified.
3. Document the Bug
If a bug is found in production, the first thing a tester should do is document the bug. This includes taking detailed notes on what happened and how it happened so that developers can quickly identify and resolve this issue.
It’s also a good idea to include any relevant screenshots or videos of the bug in the activity, if possible. Following the documentation of the bug, it should be reported to the development team for further investigation and resolution.
4. Isolate the Bug
If a bug is discovered in production, the important step for a tester is to isolate it. This means that all other factors must be eliminated, leaving only the bug as the source of any problems.
Once isolated, further investigation can be conducted to determine what caused the problem and how to best resolve it. The goal should always be to address the root causes of similar bugs to prevent them from recurring in future releases.
5. Communicate with the Team
It is essential that everyone is aware of the issue and that it is addressed as soon as possible. After speaking with my team, I would carry out additional research by replicating the steps that led to the discovery of the bug and documenting any findings manually or with any bug reporting tool like Shakebug. This will assist us in determining what caused the bug so that we can fix it appropriately.
6. Rollback (if possible)
If a bug occurs in production, the first thing a tester should do is roll back (if possible). This helps in improving the system to its original state and avoiding further damage. After rolling back, it’s critical to investigate what caused the issue and how it can be avoided in the future. The next step would be to write tests that are specifically designed for this type of bug and can be used in future testing scenarios.
7. Implement a Quick Fix
If a bug is found in production, The first thing a tester should do is implement a quick fix. This involves identifying what caused this issue and then ensuring that it does not occur again. The following step would be to document the steps taken to resolve the issue so that future issues can be avoided or quickly resolved if they arise. Finally, before releasing changes to production, testers must ensure that all tests are run on them.
8. Prioritize and Plan
If a bug is found in production, a tester must prioritize and plan the best action. First, find the type of bug discovered and its severity. Then, depending on how serious the problem is, you can decide whether to fix it right away or wait until more resources are available. Once you’ve made that decision, you’ll need to develop a test plan to validate any changes before they go live again.
9. Test the Fix
If a bug is found in production, the essential thing a tester must do is test the fix. This involves verifying that all the changes made by developers have been applied correctly and are working properly. It is also necessary to ensure that any new features or functions introduced because of this change do not introduce any new bugs into the system. To ensure proper coverage of all areas affected by the fix, testing should include both manual and automated tests.
10. Deploy the Fix
If a bug arises in production, the first thing a tester should do is deploy the fix. This means that all necessary changes should be made and thoroughly tested before being deployed into production. Following deployment, it is critical to ensure that any regression tests on the new code have been performed so that no new bugs or issues are introduced. Finally, once everything has been checked and verified, the fix can be made available to users.
11. Post-Mortem Analysis
A tester should conduct a post-mortem analysis. This entails investigating all aspects of the system, such as the code, architecture, and environment, to determine what caused the problem. Once identified, steps can be taken to ensure that similar issues do not occur in future releases.
Furthermore, testers must document their findings to share them with other team members and stakeholders who may require this information when making decisions about future projects or changes.
12. Communicate with Users
It is essential to understand what happened and how it affected testers to determine the best course of action for resolving the issue. Once you’ve identified the issue, you need to figure out why it occurred and create tests to ensure that similar issues don’t occur in future releases.
Finally, once everything has been thoroughly tested, ensure that all stakeholders are informed of any changes or fixes made before returning anything to production.
13. Update Monitoring and Logging
If a bug occurs in production, the first step for a tester is to update monitoring and logging. This will enable us to track any changes made before or after the issue occurred. This information can then be used to determine what caused the bug and how it could have been avoided.
Furthermore, we should look for similar issues in other environments, such as staging or development, so that they can be addressed as soon as possible if necessary.
38. How do you test a new feature?
1. Learn to understand the system
You can learn more about the system by using it as an end-user and comprehending its purpose. In this case, you can simply grasp its primary features or conduct some exploratory testing, which is “an approach to software testing that is often described as simultaneous learning, test design, and execution.” It emphasizes discovery and depends on the individual tester’s instruction to find flaws that are difficult to find. All you have to do is become familiar with the system, create a few test cases, and run them.
2. Search for related projects
Look for projects that do comparable tasks to the system you plan to test. For instance, if you are testing an e-commerce system, look for some e-commerce sites and test them out. If the “Add to Cart” button doesn’t make sense to you, try it on another project.
3. Attending meetings and asking questions
Asking questions and holding meetings with the project manager, developers, designers, and other stakeholders can help you learn a lot. It’s best to prepare your system-related questions in advance so you can learn more in less time.
Questions may include, but are not restricted to:
What is the system’s primary goal?
Who are the primary users?
Do any personas exist?
Which are the system’s primary modules? and what is expected of them all?
Inquire about the anticipated behavior of a certain function with the project manager, product owner, or developer.
You can ask a lot of questions here to learn important details about the system.
4. Any document would be helpful.
No requirements, no problem, but you might benefit from other documents instead of the requirements, such as:
You can better comprehend the system’s primary items and their relationships by using the database schema.
The schematics of data flow
Your eyes will be opened to the entire system via the business model.
In this situation, use cases are crucial since they illustrate the primary users and how they engage with the system.
5. Apply your prior knowledge and common sense
Based on your prior work expertise or your experience using certain systems, you can easily define the expected behavior of many functions. Common sense will also be helpful.
As a tester, you can steer clear of such issues in the future by honing your skills by experimenting with and exploring various applications in various domains. Even if this is a new project for you, doing so will broaden your experience and provide you with practical experience in various domains, making it easier for you to handle a project without requirements.
For the most common projects and functions, try to make your own checklists beforehand. For example, the Login function’s expected behavior is very common, so defining it beforehand will save you a lot of time in your upcoming projects and give you more time to concentrate and learn new functions. This also applies to your previous projects; recording your experience after each project will be invaluable in the future.
Lastly, testing without requirements isn’t that hard, but it requires more tolerance and adaptability to develop your own resources and expertise so that it can be managed with ease.
39. What is UAT?
User Acceptance Testing (UAT) is a type of testing performed by the end user or the client to verify/accept the software system before moving the software application to the production environment. UAT is done in the final phase of testing after functional, integration, and system testing is done.
40. How do you support UAT?
How Do You Support UAT?
A UAT tester is a critical member of the development team and plays an important role in ensuring the application meets business requirements and user expectations.
Key Responsibilities in UAT Support
1. Test Planning and Preparation
- Create UAT test plans, test cases, and test scenarios
- Prepare test data and testing environments
- Coordinate test execution across platforms and devices
2. Test Execution
- Run tests on individual components
- Execute end-to-end regression testing
- Perform testing based on project and product manager input
- Execute UAT tests and log issues found
3. Validation and Defect Identification
- Validate application functionality and usability
- Identify defects in code or design before release
- Track and manage bugs
4. Coordination and Communication
- Work closely with project managers and product owners
- Discuss project status and potential issues
- Coordinate test resources and activities
5. Reporting and Documentation
- Document UAT results
- Provide daily or weekly status reports
- Record successful test cases for future improvements
6. Continuous Improvement and Ownership
- Develop testing programs and strategies
- Ensure testing is completed within timelines and budget
- Provide feedback on overall project performance
Final Responsibility
Ultimately, a UAT tester strives to make each program problem-free as possible and ensures optimal performance when the application is released.
D. Experience & Process-Based Questions (41–50)
41. What challenges have you faced in testing?
1. Handling Tight Deadlines
- Often builds are delivered late, but release timelines remain unchanged
- Need to quickly decide what to test and what to skip based on risk
- Balancing speed vs quality becomes critical
2. Managing Production Issues
- Critical defects may appear in production impacting real users
- Requires quick analysis, root cause identification, and coordination with developers
- Pressure is high as it directly affects business
3. Requirement Ambiguity
- Requirements may be unclear, incomplete, or frequently changing
- Need to clarify with product owners and still proceed with testing
- Risk of missing scenarios if not handled properly
4. Prioritization and Decision-Making
- Not everything can be tested due to time constraints
- Must decide testing priorities based on business impact and risk
- Requires strong understanding of the application
5. Communication Gaps
- Miscommunication between QA, developers, and stakeholders can cause delays
- Need to ensure clear, concise, and timely communication
6. Handling Bug Rejections
- Developers may reject defects as “Not a bug” or “Works as expected”
- Requires strong justification with evidence and requirement references
42. How do you handle tight deadlines?
1. Smoke Testing First
Start with smoke testing to check whether the build is stable. Verify basic functionalities like login, navigation, and core flows. If smoke fails, immediately report and stop further testing.
2. Critical Functionality Testing
Next, focus only on high-priority and business-critical features (e.g., payments, data saving, main workflows). Skip low-priority or cosmetic test cases for now. The goal is to ensure that the most important parts of the application are working.
3. Communicate Risks to Manager
Clearly inform your manager/stakeholders about:
Limited testing due to time constraints
Areas not tested
Potential risks or defects found
This ensures transparency and helps in making release decisions.
43. What is exploratory testing?
Exploratory testing is a type of software testing where testers explore the application freely without following predefined test cases or detailed documentation.
The tester simultaneously learns, designs, and executes tests during the testing process.
44. What is functional testing?
Functional testing is a type of testing that seeks to establish whether each application feature works as per the software requirements. Each function is compared to the corresponding requirement to ascertain whether its output is consistent with the end user’s expectations. The testing is done by providing sample inputs, capturing resulting outputs, and verifying that actual outputs are the same as expected outputs.
45. What is non-functional testing?
Non-functional testing is a software testing type that tests the non-functional aspects of an application, such as usability, performance, scalability, reliability, security, compatibility, and more. In contrast, functional testing focuses on testing its functional behavior.
46. What is browser compatibility testing?
Browser compatibility testing is a type of testing used to verify whether a web application works correctly across different web browsers.
It ensures that the application’s functionality, design, and performance remain consistent for all users.
47. What is test environment?
A test environment is a setup created for testers to execute test cases and validate application functionality.
It includes all the hardware, software, tools, databases, and configurations required for testing.
48. What is release sign-off?
Release sign-off is the formal approval process that confirms the application is tested and ready for deployment to the production environment.
It indicates that the QA team and stakeholders agree the software meets the required quality standards for release.
49. What is quality assurance?
Quality assurance (QA) is any systematic process of determining whether a product or service meets specified requirements. QA establishes and maintains set requirements for developing or manufacturing reliable products.
50. What is quality control?
Quality Control (QC) is a crucial process for any business aiming to deliver exceptional products or services. By ensuring that outputs meet defined quality standards, QC helps companies maintain consistency, enhance customer satisfaction, and reduce resource wastage. Whether it’s a product on a store shelf or a service offered to clients, Quality Control is the backbone of reliability and excellence.
Scenario-Based Manual Testing Interview Questions (15 Examples)
Scenario-based questions are very important in top manual testing questions.
1. Login Button Not Working
What Will You Check?
- Check UI click functionality
- Check browser console
- Verify network calls
2. Application Crashes After Submit
What Will You Do?
- Reproduce the issue
- Log the defect
3. Data Not Saved After Refresh
What Will You Check?
- Check save functionality
- Verify database update
4. Password Visible Instead of Masked
Issue Type
- Security defect
5. App Works in Chrome but Not Firefox
Issue Type
- Browser compatibility issue
6. Duplicate Records Created
What Will You Check?
- Check double submission logic
7. Forgot Password Email Not Received
What Will You Check?
- Check email trigger
- Verify spam folder
8. Session Expires Suddenly
What Will You Check?
- Check session timeout configuration
9. Cart Items Disappear
What Will You Check?
- Check session handling
10. Incorrect Error Message Displayed
What Will You Validate?
- Compare expected versus actual message
11–15. More Manual Testing Scenarios
Common Scenarios
- Broken links
- Slow page load
- File upload failure
- Incorrect validation
- UI misalignment
Real Company Interview Round Format + Preparation Tips
Typical QA Interview Rounds
HR Round
- Introduction
- Communication skills
- Career goals
Top Manual Testing Questions
Interviewers may ask:
- Manual testing basics
- STLC and SDLC
- Defect lifecycle
- Regression testing
- Test case writing
Scenario-Based Questions
Questions based on:
- Real-time application issues
- Defect handling
- User workflows
- Production problems
Real-Time Manual Testing Questions
Interviewers may check:
- Practical thinking
- Root cause analysis
- Problem-solving skills
- Communication ability
Preparation Tips
Revise Basics First
Focus on:
- Manual testing fundamentals
- STLC
- Defect lifecycle
- Types of testing
Practice Scenarios Aloud
Explain answers clearly and confidently.
Think Like an End User
Test the application from a user perspective.
Stay Calm and Confident
Confidence and clear communication are important during interviews.
How to Answer Manual Testing Interview Questions Like a Pro
Best Answer Framework
Define the Concept
Start with a simple and clear definition.
Give a Simple Example
Explain using a practical example.
Explain Real-Time Usage
Describe how it is used in real projects.
Example
“Regression testing ensures existing features work after changes. For example, after fixing login functionality, I test signup and dashboard features to ensure no existing functionality is affected.”
Common Mistakes Candidates Make
Memorizing Answers Without Understanding
Interviewers prefer practical understanding over memorized answers.
Ignoring Scenario-Based Questions
Real-time scenarios are commonly asked in QA interviews.
Not Giving Examples
Examples make answers stronger and easier to understand.
Poor Communication
Clear communication is important for QA roles.
Overconfidence
Confidence is good, but answers should remain realistic and professional.
Final Revision Sheet – Quick Preparation
Revise These Topics Before the Interview
- Manual testing basics
- STLC and defect lifecycle
- Top 50 manual testing interview questions
- Scenario-based questions
- Real-time examples
FAQs – Top 50 Manual Testing Interview Questions
Q1. Are these enough to crack interviews?
Yes, these topics are a very strong foundation for cracking most fresher and early-experience QA/manual testing interviews.
If You Prepare These Properly, You Can Handle
- Basic manual testing questions
- Scenario-based interview questions
- Real-time project discussions
- Defect lifecycle questions
- STLC and SDLC questions
- SQL basics for testers
- HR and communication rounds
Q2. Are scenario-based questions mandatory?
Yes, scenario-based questions are very important in most QA and manual testing interviews.
Many companies consider them mandatory because they help interviewers evaluate practical testing skills instead of only theoretical knowledge.
Why Interviewers Ask Scenario-Based Questions
Interviewers want to check whether candidates can:
- Handle real-time application issues
- Think logically during testing
- Identify root causes
- Report defects properly
- Communicate clearly with developers
Q3. Are these suitable for freshers?
Yes, these manual testing and scenario-based questions are very suitable for freshers preparing for QA interviews.
Most companies ask these types of questions during:
- Fresher QA interviews
- Internship interviews
- Junior manual testing roles
- Entry-level software testing positions
Q4. Is automation required?
No, automation is not always required for QA interviews, especially for freshers and manual testing roles.
Many companies still hire candidates for:
- Manual testing roles
- Fresher QA positions
- Junior testing jobs
- Internship opportunities
using strong manual testing fundamentals alone.
Q5. How long should I prepare?
The preparation time depends on your current knowledge, learning speed, and interview goals.
For most freshers, a focused preparation plan of 4 to 8 weeks is usually enough to prepare for manual testing interviews confidently.
Recommended Preparation Timeline
1–2 Weeks: Learn Basics
Focus on:
- Manual testing concepts
- STLC and SDLC
- Defect lifecycle
- Types of testing
- Test cases and bug reports
2–4 Weeks: Practice Real-Time Scenarios
Prepare:
- Scenario-based questions
- Real-time testing examples
- Defect handling
- Browser compatibility issues
- Regression and smoke testing
1–2 Weeks: Learn Basic SQL
Focus on:
- SELECT
- WHERE
- JOIN
- GROUP BY
- COUNT
Basic SQL knowledge is enough for many fresher QA interviews.
Final Week: Mock Practice and Revision
Practice:
- Speaking answers aloud
- Explaining scenarios clearly
- Project explanation
- HR questions
Confidence and communication