Software Tester Interview Questions

[Vennie Melkonian]

These are the top manual testing interview questions asked by organizations in a manual testing job interview. In these interview questions, you will learn software testing concepts like test case development, error guessing techniques, black-box techniques and more.

Before the launch of any product or software, testing is a must. You can use automation testing in most cases but not for all of them. This is where manual testing comes in and it plays an important role in the field of software development. Our blog on manual testing interview questions and answers will guide you to master the field with the help of a carefully collated set of interview questions on manual testing.

software tester interview questions

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A slip in coding is indicated as an error. The error spotted by a manual tester becomes a defect. The defect which the development team admits is known as a bug. If a built code misses on the requirements, then it is a functional failure.

Bug leakage: Bug leakage is when the bug is discovered by the end user/customer and missed by the testing team. It is a defect that exists in the application and not detected by the tester, which is eventually found by the customer/end user.

Exploratory testing is an approach to software testing, where in testers learn simultaneously about the test design and test execution. In other words, it is a hands-on approach where testers are involved more in the test execution part than in planning.

We live in a world that is becoming increasingly online. As a result, the demand for new software and apps is increasing to meet the ever-increasing number of consumers. However, since all this new development necessitates a quality control mechanism, software testers are in higher demand.

A test case is a set of conditions or variables under which a tester will determine whether a software system or one of its features is working as it was originally established for it to do. It may take the form of input, action, or environmental conditions. In addition, a test case includes requirements, test steps, verification steps, prerequisites, outputs, and actual results.

Documentation is an integral part of manual testing. It is essential to document all steps taken in the testing process to ensure thorough test coverage and accurate results. Documentation provides an audit trail, which can be used to evaluate past test results and identify areas for improvement. Additionally, it is a reference for other testers who may be unfamiliar with the system or application under test.

According to the pesticide paradox, if the same tests are done repeatedly, the same test cases will eventually stop finding new bugs. Developers will be especially cautious in regions where testers discovered more flaws, and they may overlookPositive and Negative Testing?

In such cases, the best course of action is for testers to go through the process of reporting any flaws or blocking-type issues that arise, with an emphasis on critical bugs. Because this sort of crisis might result in serious issues such as insufficient unit or integration testing, poor design, wrong build or release methods, and so on, management should be contacted and given documentation as proof of the problem.

Manual testing is the process of manually testing software for defects. It requires a tester to manually execute the test steps and compare the actual and expected results. Automation testing uses special software to control the execution of tests and compare the results with the desired results. As a result, automation testing is much faster than manual testing and can reduce the time required to complete a test cycle.

Defect cascading is a type of software testing issue in which the result of a defect in one part of the system causes other defects or problems to occur in other parts of the system. This cascading causes a chain reaction of errors, making it difficult to trace the source of the problem. Defect cascading can lead to many issues, from minor performance slowdowns to significant system crashes, making it a severe risk to software developers and testers.

In this write-up Manual testing interview questions, we had a look at the frequently asked interview questions. If you found this article relevant, check out our frequently asked automated interview questions too, click here!

The experienced section assumes basic familiarity with the testing process and explores the advanced topics in testing. This section is suitable for someone with a few years of experience as a tester. In the end, multiple-choice questions are provided to test your understanding of testing.

Regression testing helps ensure that the new code or modifications to the existing code don't break the present behaviour. It allows the tester to verify that the new code plays well with the legacy code.

A tester is similar to a tourist when they are testing software. They can follow a strict set of test cases and test the software according to them, with the provided inputs and outputs, or they can explore the software.

When a tester doesn't use the test scripts or a predefined test plan and randomly tests the software, it is called exploratory testing. As the name suggests, the tester is exploring the software as an end-user would. It's a form of black-box testing.

In exploratory testing, the tester interacts with the software in whatever manner they want and follows the software's instructions to navigate various paths and functionality. They don't have a strict plan at hand.

Though it seems random, exploratory testing can be powerful in an experienced and skilled tester's hands. As it's performed without any preconceived notions of what software should and shouldn't do, it allows greater flexibility for the tester to discover hidden paths and problems along those paths.

End to End testing is the process of testing a software system from start to finish. The tester tests the software just like an end-user would. For example, to test a desktop software, the tester would install the software as the user would, open it, use the application as intended, and verify the behavior. Same for a web application.

Whenever a new build of the software is released, the tester updates the test environment with the latest build and runs the regression tests suite. Once it passes, the tester moves on to testing new functionality.

You can find a bug in many different ways, regardless of your role. When building the software, the software developer might notice the bug in another module, written by another developer or by themselves. The tester actively tries to find the bugs as part of a routine testing process. Finally, the users could see the bugs when the software is in production.

In a user story, the tester creates user personas with real names and characteristics and tries to simulate a real-life interaction with the software. A user story often helps fish out hidden problems that are often not revealed by more formal testing processes.

The TestNG framework for Java is an open-source advanced test automation framework that is designed to benefit both testers and developers. The purpose of TestNG is to provide an easy-to-use, readable, structured, maintainable, and user-friendly environment for automated tests. NG stands for 'Next Generation' in TestNG. The high-end annotations, such as data providers, make cross-browser testing easier since you can test across multiple devices and browsers. Furthermore, the framework has an inbuilt mechanism for handling exceptions that prevent the program from terminating unexpectedly.

Any software tester's goal is to find out as many bugs and problems in the system so that the customers don't have to. Hence, a good software tester should have a keen eye for detail. They should know the ins and outs of the software they are testing and push every aspect of the software to its limits, to identify bugs that are hard to find with the software's regular use.

A good tester should keep the end-user in mind when they are testing. Having empathy with the end-user helps the tester ensure that the software is accessible and usable. Simultaneously, the tester should possess basic programming skills to think from a developer's perspective, which allows them to notice common programming errors such as null-references, out-of-memory errors, etc.

Communication, both written and verbal, is an essential skill for a tester. A tester will frequently have to interact with both the developers and the management. They should be able to explain the bugs and problems found during testing to the developers. For each bug found, a good tester should provide a detailed bug report consisting of all the information a developer would need to fix that problem. They should be able to make a good case to the management if they are uncomfortable releasing the software if it contains unresolved issues.

In a traditional waterfall software development model, requirements are gathered first. Then a specification document is created based on the document, which drives the design and development of the software. Finally, the testers conduct the testing at the end of the software development life cycle once the complete software system is built.

An agile software development model works in small iterations. You test the software in parallel as it is getting built. The developers build a small functionality according to the requirements. The testers test it and get customer feedback, which drives future development.

However, it doesn't mean that developers shouldn't test the software before sending it to the tester. Developer testing helps find many bugs that are caused by programming errors. These are hard to find for a tester because they don't always have access to the source code.

As the name suggests, automated testing, which is also called test automation, is the programmatic execution of the tests. The tester uses an automation tool or software like Selenium to write code that performs the following tasks.

A confirmation test involves retesting a software product to see if the previously reported bugs have been fixed. A bug is usually reported by testers when a test fails. A new version of the software is released after the development team fixes the defect. Now that the new software build has been released, the testing team will retest it in order to ensure that the reported bug was actually fixed. It is also referred to as retesting.

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