30+ Software Testing Engineer Interview Questions and Answers for Freshers

Answers to common software testing questions.

• Smoke testing is a quick test to check if the basic functionality of the application is working. Sanity testing is a more thorough test to check if the major functionality of the application is working.

• Adhoc testing is an informal testing technique where the tester tries to break the application by randomly testing it without any specific test cases.

• Globalization testing is the process of testing an application to ensure that it ca...read more

Test cases for a pen and door handle

• Pen: ink flow, writing on different surfaces, durability, grip comfort

• Door handle: opening and closing mechanism, durability, ease of use, noise level

SQA is Software Quality Assurance which ensures that the software meets the desired quality standards.

• SQA involves the entire software development life cycle

• It includes processes like testing, code reviews, and audits

• SQA aims to prevent defects and improve the overall quality of the software

• It helps in delivering a reliable and high-quality product to the end-users

• Waterfall model is a linear sequential approach to software development

• Test case is a set of conditions or variab...read more

Java is a popular programming language known for its platform independence and object-oriented features.

• Java is an object-oriented programming language that runs on the Java Virtual Machine (JVM).

• It is known for its platform independence, meaning that Java code can run on any platform that has a JVM installed.

• Java has several features such as automatic memory management, exception handling, and multithreading.

• Object-oriented programming (OOP) is a programming paradigm that fo...read more

Manual testing is done manually by humans while automation testing is done using tools and scripts.

• Manual testing is time-consuming and prone to human errors.

• Automation testing is faster and more reliable.

• Manual testing is suitable for exploratory testing while automation testing is suitable for regression testing.

• Manual testing requires human skills and experience while automation testing requires programming skills.

• Manual testing is more flexible while automation testing is...read more

Performance testing is a type of testing that evaluates the speed, responsiveness, stability, and scalability of a software application.

• It involves simulating real-world scenarios to measure the performance of the application

• It helps identify bottlenecks and performance issues in the application

• It can be done using tools like JMeter, LoadRunner, and Gatling

• Examples of performance testing include load testing, stress testing, and endurance testing

Testing is the process of evaluating a system or component to determine if it meets specified requirements.

• Testing is an essential part of the software development life cycle.

• It involves executing a system or component with the intent of finding defects.

• Testing helps in identifying and preventing potential issues or bugs.

• It ensures that the software meets the desired quality standards.

• Different types of testing include unit testing, integration testing, system testing, and ac...read more

Testcases are written by identifying the requirements, designing test scenarios, and creating test cases based on the scenarios.

• Identify the requirements and understand the functionality to be tested

• Design test scenarios that cover different aspects of the functionality

• Create test cases based on the test scenarios, ensuring they are clear, concise, and cover all possible scenarios

• Include both positive and negative test cases to validate expected behavior and handle exceptions...read more

I am interested in the healthcare domain.

• I have a strong passion for improving healthcare through technology.

• I enjoy working on projects that involve medical software and systems.

• I have experience in testing healthcare applications and understanding regulatory requirements.

• I am familiar with medical terminologies and workflows.

• I am interested in exploring areas like telemedicine, electronic health records, and medical imaging.

Join is a SQL operation used to combine rows from two or more tables based on a related column between them.

• Join is used to retrieve data from multiple tables in a single query.

• There are different types of joins such as inner join, left join, right join, and full outer join.

• The join condition is specified using the ON keyword followed by the columns to join on.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;

White box testing is a testing technique that involves testing the internal structure of the software.

• Test cases are designed based on the knowledge of the internal structure of the software.

• Test scenarios are created to test the functionality of the software.

• White box testing is also known as structural testing or code-based testing.

• It is useful in identifying errors in the code and improving code quality.

• Examples of white box testing techniques include statement coverage, d...read more

Defect tracking is the process of identifying, reporting, and managing defects in software.

• Defect tracking involves recording and tracking defects found during testing.

• Defects are typically logged in a defect tracking tool or system.

• Defect tracking helps ensure that defects are addressed and resolved before software is released.

• Defect tracking also provides valuable data for improving software quality.

• Examples of defect tracking tools include JIRA, Bugzilla, and HP Quality Ce...read more

Testing types are implemented throughout the SDLC process to ensure quality software.

• Testing types include unit testing, integration testing, system testing, acceptance testing, and regression testing.

• Unit testing is done by developers to test individual code components.

• Integration testing is done to test how different components work together.

• System testing is done to test the entire system as a whole.

• Acceptance testing is done by the end-users to ensure the software meets t...read more

Types of Testing include unit testing, integration testing, system testing, and acceptance testing.

• Unit Testing: Testing individual components or units of code.

• Integration Testing: Testing the interaction between different components or modules.

• System Testing: Testing the entire system as a whole.

• Acceptance Testing: Testing the system against user requirements.

Test cases are a set of conditions used to validate the functionality of software.

• Identify the objective of the software

• Create test cases for each objective

• Test cases should cover all possible scenarios

• Test cases should be repeatable and consistent

• Test cases should be documented and reviewed

Both Python and C++ have their own complexities and ease of use depending on the task at hand.

• Python is easier to learn and write code quickly, but C++ offers more control and performance.

• Python is better for scripting and prototyping, while C++ is better for system-level programming and large-scale projects.

• Python has a simpler syntax and dynamic typing, while C++ has a more complex syntax and static typing.

• Ultimately, the ease of use depends on the specific project requirem...read more

Selenium is a popular tool for automating web browsers for testing purposes.

• Selenium is used for automating web browsers to test web applications.

• It supports multiple programming languages like Java, Python, C#, etc.

• Selenium WebDriver is the most commonly used component for writing test scripts.

• Selenium IDE is a record and playback tool for creating quick test scripts.

• Selenium Grid allows running tests on different machines in parallel.

• Selenium can interact with different bro...read more

OOP concepts refer to principles in object-oriented programming such as inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability for objects to be treated as instances of their parent class.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.

Encapsulation is the process of hiding implementation details and providing a public interface for accessing the functionality.

• Encapsulation is a fundamental concept in object-oriented programming.

• It helps in achieving data abstraction and information hiding.

• It allows for better control over the data and prevents unauthorized access.

• Example: A class in Java that has private variables and public methods to access them.

• Example: A capsule that contains medicine and has a protect...read more

SDLC stands for Software Development Life Cycle.

• It is a process followed by software development teams to design, develop, test and deploy software.

• It consists of several phases such as planning, analysis, design, implementation, testing, and maintenance.

• It helps in delivering high-quality software that meets customer requirements and is delivered on time and within budget.

• Examples of SDLC models include Waterfall, Agile, and DevOps.

A defect is a flaw or error in a software application that causes it to behave unexpectedly or not as intended.

• Defects can be caused by coding errors, design flaws, or environmental factors.

• Defects can lead to system crashes, data loss, or security vulnerabilities.

• Defects can be identified through testing and debugging processes.

• Defects should be documented and tracked to ensure they are resolved.

• Examples of defects include incorrect calculations, broken links, and incorrect ...read more

Action Class is a class in Selenium WebDriver used to perform keyboard and mouse actions on a web page.

• Used to simulate user actions like click, double-click, drag and drop, etc.

• Can be used to handle pop-ups and alerts

• Can be used to perform keyboard actions like typing, pressing keys, etc.

• Can be used to perform mouse actions like moving the cursor, clicking, etc.

SDLC stands for Software Development Life Cycle, a process followed by software development teams to design, develop and test high-quality software.

• SDLC is a process that consists of several phases including planning, analysis, design, development, testing, deployment, and maintenance.

• Each phase has its own set of deliverables and objectives that must be met before moving on to the next phase.

• The goal of SDLC is to produce high-quality software that meets the needs of the end...read more

UI testing is the process of testing the user interface of a software application to ensure it meets the specified requirements.

• UI testing involves testing the visual elements of the application such as buttons, menus, and forms.

• It also includes testing the functionality of the UI elements such as navigation, input validation, and error handling.

• UI testing can be automated using tools such as Selenium and Appium.

• It is important to test UI on different devices and screen sizes...read more

Bug life cycle is the process of identifying, reporting, resolving, and verifying software defects.

• Bug is identified by testers during testing

• Bug is reported to development team

• Development team resolves the bug

• Bug fix is verified by testers

• Bug is closed if verified or reopened if not fixed

• Bug data is analyzed to prevent future occurrences

SQL stands for Structured Query Language, used to manage and manipulate relational databases.

• SQL is a programming language used to communicate with databases

• It is used to create, modify, and delete databases, tables, and data

• SQL is used in various applications such as web development, data analysis, and business intelligence

• Examples of SQL-based databases include MySQL, Oracle, and Microsoft SQL Server