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Automation Test Engineer Interview Questions – Software testing is an activity in the software development life cycle to ensure that the software is working correctly and as required. Testing plays an important role in any software development project.
At its core, software testing aims to answer the following questions: How can we ensure that the software does what it is supposed to do and doesn’t do what it shouldn’t? The main purpose of software testing is to be reasonably confident that the software under test produces the correct input and output.
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An important thing to remember when learning about software testing is that testing itself does not improve software quality. Or, high-volume testing does not necessarily mean high-quality software. Testing is an indicator of quality and provides important feedback to the developers who are building the software so that they can take the necessary actions to resolve the issues encountered during testing.
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This article covers interview questions frequently asked by interviewers for Software Tester or Quality Assurance (QA) positions. It is divided into three parts according to the candidate’s skills. The fresher section includes software testing questions that you can ask to get a junior position if you’re a recent college graduate.
The experienced section provides a basic introduction to the testing process and explores advanced testing topics. This section is suitable for those with several years of experience as a tester. Finally, multiple-choice questions are provided to test understanding of the test.
Software testing is the evaluation and verification of the functionality of a software product. Essentially, software products are tested to ensure they meet expected requirements and are free of defects. It can be said that testing improves product quality by preventing errors, reducing development costs, and reducing performance problems.
You can test the software in different ways. Some types of testing are performed by software developers, while others are performed by dedicated quality assurance personnel. Here are some of the different types of software testing with brief descriptions.
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A program test that examines the internal workings of code units such as methods and functions.
End-to-end testing is performed on the complete software to ensure that the entire system works as expected.
A quick check was done to make sure the software was working at a basic level and there were no errors on startup. The name comes from a hardware test that involves plugging in a device and checking for smoke.
Test response time and throughput for specific workloads and environments to ensure that the software meets user expectations.
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Ensure that the software meets the user’s or user’s needs. This is usually the last step before running the software, i.e. It goes to production.
Make sure that the software performance does not degrade when the load increases. In stress testing, testers place heavy workloads, such as large numbers of requests or strict memory requirements, on the software to make sure it’s performing well.
Measure the usability of the software. This is usually done with a sample set of end users who use the software and provide feedback on how easy or difficult it is to use the software.
Now more important than ever. Security testing is an attempt to breach software security checks and gain access to confidential information. Security testing is important for web applications or any money-related application.
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The dictionary definition of regression is the act of returning to a previous place or state. In software, regression refers to a feature that suddenly stops working after developers add new code or functionality to the software.
As new features are constantly being added to the software industry, regression problems are common. Developers do not create these functions separately from the existing code. Instead, the new code interacts with the old code and modifies it in various ways, causing side effects, whether intended or not.
Therefore, there is always the possibility that introducing new changes will adversely affect the performance characteristics. It’s important to remember that even small changes can cause regression.
Regression testing helps ensure that new code or changes to existing code do not break current behavior. This allows testers to make sure that the new code plays well with the old code.
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Imagine tourists visiting a foreign city. There are two ways they can explore the city.
With the first method, travelers follow and implement a predetermined plan. Although they may visit famous places, they may miss places that are more exciting and hidden than the city itself. In the second way, tourists will walk around the city and encounter strange and strange places that the traveler will miss.
Tests are the same for visitors when testing software. They can follow a strict set of tests and test the software according to the inputs and outputs or look for the software.
A tester does not use a predefined test script or test plan, and randomly testing the software is called exploration. As the name suggests, a tester examines the software as an end user. It is a form of black box testing.
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During testing, the tester interacts with the software in any way you need, follows the software’s instructions, and manages routes and various functions. They don’t have a solid plan in hand.
Research tests often focus on behavioral testing. This is effective for learning about new software features. It also provides a high-level overview of the system, which helps to quickly evaluate and learn the software.
Although it may seem random, research challenges can be powerful in the hands of experienced and skilled testers. Software is implemented without preconceived notions of what it should and shouldn’t do, giving testers more flexibility to uncover hidden paths and problems along those paths.
End to End testing is the process of testing a software system from start to finish. Testers test software just like end users. For example, to test desktop software, the tester installs and opens the software according to the user’s requirements, uses the intended application, and examines the behavior. The same is true for web applications.
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There are important differences between end-to-end testing and other forms of isolated testing, such as unit testing. In end-to-end testing, the software is tested with all dependencies and integrations, including databases, networks, file systems, and other external services.
Unit testing is the process of testing a single unit of code in isolation. A unit of code can be a method, class, or module. Unit testing aims to focus on the smallest blocks of code and then combine them to ensure that they produce fully functional software.
A unit test calls the code and checks the expected results. If the expected and actual results match, the unit test passes. Otherwise, it will fail.
API stands for Application Programming Interface. It is a method of communication between two software components. An API abstracts the inner workings and complexity of a software application, allowing users of that API to focus only on the inputs and outputs needed to use it.
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When creating software, developers rarely write programs from scratch and use other third-party libraries. An API allows two software components to talk to each other by creating an interface through which they can understand each other.
Another use of an API is to provide information that an application needs. Let’s say you’re building a weather app that displays the temperature. Instead of building the temperature collection technology yourself, you’ll access the API provided by the Meteorological Institute.
A test environment consists of a server/computer where testers run their tests. It differs from a development machine in that it attempts to represent the actual hardware on which the software will run; When in production.
Whenever a new software version is released, the tester updates the test environment with the latest version and runs a series of regression tests. This passes and the tester moves on to test the new feature.
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When testing software, code control measures how much of the project’s source code is covered by the test plan. Code management testing runs concurrently with actual product testing. Using code management tools, you can control the execution of statements in your source code. A full report of expected statements and coverage ratios is provided at the end of the final test.
When using agile methods for software testing, it is most beneficial to use automated tests. This helps to get the maximum test coverage in a short sprint time.
A software bug is a software error that produces incorrect results. A software tester will test the software to detect software defects.
There are many reasons for errors, such as poor design, programming errors, lack of version control,
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