100+ Test Engineer Interview Questions and Answers for Freshers

Program to add two numbers in c#

• Declare two variables to store the numbers

• Take input from user for both variables

• Add the variables and store the result in a third variable

• Display the result

Xpath can use AND and OR conditions to locate elements based on multiple criteria.

• To use AND, simply chain multiple conditions together with no operator in between.

• To use OR, use the 'or' keyword between conditions.

• Example: //div[@class='class1' and @id='id1'] or //div[@class='class2']

Black box testing is testing without knowledge of the internal workings of the system, while white box testing is testing with knowledge of the internal workings of the system.

• Black box testing focuses on testing the functionality of the system without knowledge of the internal workings of the system.

• White box testing focuses on testing the internal workings of the system, including code and algorithms.

• Black box testing is often used for user acceptance testing, while white b...read more

Sanity testing is a subset of regression testing that quickly checks if the critical functionalities of an application are working after minor changes.

• Sanity testing is a high-level testing technique

• It focuses on verifying the stability of the system after minor changes

• It ensures that the critical functionalities are still intact

• It is performed to avoid wasting time on testing if the basic functionality is broken

• It is a subset of regression testing

• It is usually performed manu...read more

Manual testing is done by humans, while automation testing is done by software tools.

• Manual testing involves executing test cases manually without any automation tools.

• Automation testing involves using software tools to execute test cases.

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

• Automation testing is faster, more reliable, and can be repeated multiple times.

• Manual testing is suitable for exploratory testing, while automation testing is suitable for regressio...read more

JDK stands for Java Development Kit, which is a software development kit used for developing Java applications.

• JDK includes JRE (Java Runtime Environment) and development tools such as compiler, debugger, etc.

• It is necessary for compiling, debugging, and running Java programs.

• Examples of JDK versions include JDK 8, JDK 11, and JDK 15.

Count the number of characters in a given string.

• Iterate through each character in the string and increment a counter for each character.

• Return the final count of characters in the string.

Components of drum brakes include brake drum, brake shoes, wheel cylinder, return springs, and adjuster mechanism.

• Brake drum: circular drum that rotates with the wheel

• Brake shoes: curved metal plates that press against the drum to create friction

• Wheel cylinder: contains pistons that push the brake shoes against the drum

• Return springs: retract the brake shoes after braking

• Adjuster mechanism: used to adjust the distance between the brake shoes and drum

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

• 1. Planning: Define the scope, requirements, and objectives of the project.

• 2. Analysis: Gather and analyze user requirements.

• 3. Design: Create a detailed design plan for the software.

• 4. Implementation: Develop the software based on the design plan.

• 5. Testing: Test the software to ensure it meets the requirements.

• 6. Deploymen...read more

Cellular communication is a technology that allows devices to communicate wirelessly using cellular networks.

• Cellular communication uses radio waves to transmit and receive data between devices and cellular towers.

• It enables voice calls, text messaging, and internet access on mobile devices.

• Cellular networks are divided into cells, each served by a base station or tower.

• Devices connect to the nearest tower, and as they move, they hand off the connection to a new tower seamles...read more

Waterfall model is a linear sequential approach to software development.

• It follows a sequential process where each phase must be completed before moving on to the next.

• It is a rigid model and changes cannot be made easily once a phase is completed.

• It is suitable for projects with well-defined requirements and a stable scope.

• Examples of industries that use this model are construction and manufacturing.

• Phases include requirements gathering, design, implementation, testing, depl...read more

To run tests using Maven, use the 'mvn test' command in the terminal.

• Navigate to the project directory in the terminal

• Run the 'mvn test' command to execute all tests in the project

• View the test results in the terminal or generated reports

SQL stands for Structured Query Language, used for managing and manipulating relational databases.

• SQL is a standard language for accessing and manipulating databases.

• Common data types in SQL include INTEGER, VARCHAR, DATE, and BOOLEAN.

• Examples of SQL data types: INT, VARCHAR(50), DATE, BOOLEAN.

I have experience in testing 4G and 5G networks.

• I have tested 4G and 5G networks for functionality, performance, and interoperability.

• I have used tools such as Wireshark, JMeter, and LoadRunner for testing.

• I have also tested various features such as VoLTE, VoWiFi, and video calling.

• I have worked with different network elements such as eNodeB, MME, SGW, and PGW.

• I have experience in both manual and automated testing of 4G and 5G networks.

I enjoy playing a variety of games, including both video games and board games.

• I play a mix of video games and board games

• Some of my favorite video games include The Legend of Zelda series and Overwatch

• I enjoy strategic board games like Settlers of Catan and Ticket to Ride

Types of testing include functional, non-functional, manual, automated, and game testing methods such as regression, load, stress, and compatibility testing.

• Functional testing: Ensures the software functions as intended.

• Non-functional testing: Tests aspects like performance, usability, and security.

• Manual testing: Testing performed by humans without automation tools.

• Automated testing: Testing using automation tools to execute test cases.

• Game testing methods: Regression testin...read more

Basic RestAssured code for API testing

• Import necessary RestAssured libraries

• Set base URI for the API

• Send a GET request to the API endpoint

• Validate response status code and body

I play the game 'The Legend of Zelda: Breath of the Wild'.

• It is an action-adventure game.

• The game is set in an open world environment.

• Players control the protagonist, Link, as he explores the kingdom of Hyrule.

• There are various quests, puzzles, and combat encounters to complete.

• Players can also interact with non-playable characters and collect items.

• The game offers a vast and immersive gameplay experience.

I am expecting a salary in line with industry standards and commensurate with my experience.

• My expected salary is based on my experience, skills, and the job responsibilities.

• I am open to negotiation and willing to discuss the salary package.

• I am looking for a fair and competitive salary package.

• I am expecting a salary that reflects my value to the company.

• I am aware of the industry standards and salary ranges for this position.

• I am not just looking for a high salary, but als...read more

Test case for login functionality

• Enter valid username and password, verify successful login

• Enter invalid username and password, verify error message displayed

• Leave username or password field empty, verify error message displayed

Oops concept stands for Object-Oriented Programming concepts which include inheritance, polymorphism, encapsulation, and abstraction.

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

• Polymorphism: Allows objects of different classes to be treated as objects of a common superclass.

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

• Abstraction: Hides the complex implementation details and only shows the necessary...read more

My feature goal is to ensure high-quality software by designing and executing effective test cases.

• Designing and executing test cases to identify defects

• Collaborating with developers to resolve issues

• Automating tests to increase efficiency

• Continuously improving testing processes

• Ensuring software meets customer requirements

RISC (Reduced Instruction Set Computing) and CISC (Complex Instruction Set Computing) are two types of CPU architectures.

• RISC processors have a smaller set of simple instructions, while CISC processors have a larger set of complex instructions.

• RISC processors typically execute instructions faster than CISC processors.

• Examples of RISC architectures include ARM and MIPS, while examples of CISC architectures include x86 and x86-64.

• RISC architectures are more efficient in terms o...read more

API testing is a type of software testing that involves testing APIs directly and ensuring they meet functional and performance requirements.

• API testing involves testing the functionality, reliability, performance, and security of APIs

• API testing can be done manually or using automated tools

• API testing can be done at different levels such as unit, integration, and end-to-end testing

• API testing involves sending requests to the API and verifying the responses

• API testing can als...read more

DB testing involves verifying data integrity, performance, security, and functionality of the database.

• Verify data integrity by checking for data duplication, missing data, and data accuracy.

• Test performance by measuring response time, throughput, and scalability.

• Ensure security by testing access controls, encryption, and data privacy.

• Test functionality by verifying data manipulation, retrieval, and storage.

• Use SQL queries, stored procedures, and triggers to test the database...read more

Waits in Selenium are used to pause the execution of the test script for a certain amount of time.

• Waits are used to synchronize the test script with the application under test.

• There are two types of waits in Selenium: implicit wait and explicit wait.

• Implicit wait sets a default waiting time for the entire test script.

• Explicit wait is used to wait for a specific condition to occur before proceeding with the test script.

• Examples of conditions for explicit wait include element v...read more

Regression testing is retesting of software to ensure new changes do not negatively impact existing functionality.

• Regression testing is performed to verify that recent code changes have not adversely affected existing features.

• It involves running previously executed test cases to ensure that no new bugs have been introduced.

• Example: After adding a new feature to a website, regression testing is done to make sure all existing functionalities still work correctly.

• Example: After...read more

Smoke testing is a preliminary test to check if the software is stable enough for further testing. Sanity testing is a subset of regression testing to check if the bugs have been fixed.

• Smoke testing is done to check if the critical functionalities of the software are working fine.

• Sanity testing is done to check if the bugs have been fixed and the software is ready for further testing.

• Smoke testing is done before sanity testing.

• Smoke testing is a quick and shallow test while s...read more

Scenario is a high-level description of a use case, while a test case is a detailed step-by-step procedure to validate a specific aspect of the scenario.

• Scenario is a broad overview of a user interaction or system behavior, while a test case is a specific set of steps to verify a particular functionality.

• Scenarios are used for high-level planning and understanding, while test cases are used for detailed testing and validation.

• A scenario may encompass multiple test cases, each...read more

Software testing is the process of evaluating a software application or system to find defects and ensure it meets the specified requirements.

• Testing is done to identify defects and ensure the software meets the requirements

• It involves various types of testing such as functional, performance, security, etc.

• Testing can be done manually or using automated tools

• Test cases are designed to cover all possible scenarios and edge cases

• Defects found during testing are reported and fix...read more

I am adaptable and can work in any work environment.

• I have experience working in various work environments and can easily adapt to new ones.

• I am a team player and can work well with others regardless of the work environment.

• I am open to feedback and willing to learn new things to fit in with the company's work environment.

NAM Media is a digital marketing agency that specializes in creating and executing effective marketing strategies for businesses.

• NAM Media offers services such as social media management, search engine optimization, and email marketing.

• They work with clients in various industries, including healthcare, finance, and technology.

• NAM Media's goal is to help businesses increase their online presence and drive more traffic to their websites.

Different scenarios in testing

• Functional testing

• Performance testing

• Security testing

• Usability testing

• Compatibility testing

Testing is done to ensure the quality, reliability, and functionality of the software being developed.

• To identify defects or bugs in the software

• To ensure the software meets the requirements and specifications

• To improve the user experience and satisfaction

• To reduce the risk of software failures and malfunctions

• To validate that the software functions as intended

To read a property file, use Java's Properties class to load the file and retrieve values using keys.

• Use Properties class to load the property file

• Retrieve values using keys

• Handle exceptions like FileNotFoundException or IOException

Types of testing include functional, non-functional, regression, performance, and security testing. STLC includes planning, design, execution, and reporting.

• Functional testing ensures that the software meets the specified requirements.

• Non-functional testing checks the software's performance, usability, and security.

• Regression testing ensures that changes to the software do not affect existing functionality.

• Performance testing checks the software's speed, scalability, and stab...read more

Automation testing is the use of software to execute test cases and compare actual outcomes with expected outcomes.

• Automation testing helps in reducing human intervention and increasing test coverage

• It is faster and more reliable compared to manual testing

• Common tools used for automation testing include Selenium, Appium, and JUnit

Java program to generate Fibonacci series

• Use a loop to generate Fibonacci numbers

• Start with 0 and 1 as the first two numbers

• Add the previous two numbers to get the next number

AI has revolutionized the testing field by automating repetitive tasks, improving accuracy, and enabling faster testing cycles.

• AI helps in test case generation, execution, and analysis, reducing manual effort.

• AI-powered tools can identify patterns and anomalies in data to improve test coverage.

• Machine learning algorithms can predict potential issues based on historical data, aiding in proactive testing.

• AI can simulate user behavior to test software applications in real-world ...read more

OA stands for Open Architecture and QC stands for Quality Control.

• OA refers to a system that allows for customization and integration of different software components.

• QC refers to the process of ensuring that a product or service meets the desired quality standards.

• OA and QC are both important concepts in software testing and development.

• Examples of tools that support OA include Selenium and Appium.

• Examples of QC tools include JIRA and HP Quality Center.

STLC is a subset of SDLC that focuses on testing activities.

• SDLC is a software development life cycle that includes all phases of software development.

• STLC is a software testing life cycle that includes all phases of software testing.

• SDLC includes requirements gathering, design, development, testing, deployment, and maintenance.

• STLC includes test planning, test design, test execution, and test closure.

• SDLC is a broader term that encompasses STLC.

• STLC is a subset of SDLC that ...read more

Selenium has limitations in handling non-web-based applications and requires technical expertise for maintenance.

• Selenium cannot automate desktop applications or mobile applications

• It cannot handle CAPTCHA and reCAPTCHA challenges

• Selenium requires technical expertise for maintenance and updates

• It cannot handle complex dynamic web pages

• Selenium does not have built-in reporting capabilities

Electronics is the branch of physics and engineering that deals with the behavior and control of electrons.

• Electronics deals with the study of electronic components and their behavior.

• It involves the design, development, and testing of electronic circuits and devices.

• Examples of electronic devices include smartphones, computers, televisions, and radios.

RTM stands for Requirements Traceability Matrix, a document that links requirements to test cases to ensure all requirements are covered.

• RTM is used to ensure that all requirements are covered by test cases

• It helps in tracking the progress of testing and ensures no requirements are missed

• RTM can be created using tools like Excel or specialized test management software

• Example: If a software requirement is to have a login feature, the RTM will show which test cases cover testin...read more

OOPs concepts are the fundamental principles of object-oriented programming.

• Encapsulation - binding data and functions together

• Inheritance - reusing code from existing classes

• Polymorphism - ability of objects to take on multiple forms

• Abstraction - hiding implementation details from users

• Example: A car class can inherit properties from a vehicle class

• Example: Polymorphism can be seen in a shape class with different child classes like circle, square, etc.

Types of Xpath include Absolute Xpath, Relative Xpath, Contains Xpath, and Attribute Xpath.

• Absolute Xpath: Specifies the location of an element starting from the root node.

• Relative Xpath: Specifies the location of an element starting from the current node.

• Contains Xpath: Finds elements that contain a specific value in their attributes.

• Attribute Xpath: Finds elements based on their attributes.

Query to link keys in a database

• Use JOIN clause to link keys from different tables

• Specify the columns to link on using ON keyword

• Consider using INNER JOIN, LEFT JOIN, or RIGHT JOIN based on requirements