Senior Software Engineer Testing
60+ Senior Software Engineer Testing Interview Questions and Answers
Q1. Sorting Characters by Frequency
Given a string S
, sort this string in increasing order based on the frequency of its characters. If two characters have the same frequency, the character with a lesser ASCII valu...read more
Sort a string based on character frequency and ASCII value.
Count the frequency of each character in the string.
Sort the characters based on frequency and ASCII value.
Handle both lowercase and uppercase characters.
Return the sorted string.
To measure exactly 4 liters using 3 and 5 liter buckets, fill the 5 liter bucket, pour it into the 3 liter bucket, then fill the 5 liter bucket again and pour enough to fill the 3 liter bucket, leaving 4 liters in the 5 liter bucket.
Fill the 5 liter bucket completely
Pour the water from the 5 liter bucket into the 3 liter bucket
Fill the 5 liter bucket again
Pour water from the 5 liter bucket into the 3 liter bucket until it is full, leaving 4 liters in the 5 liter bucket
Senior Software Engineer Testing Interview Questions and Answers for Freshers
Q3. Why clients go for automation testing and what is my role in regression testing
Clients opt for automation testing to save time and cost. My role in regression testing is to ensure that the software still works after changes.
Automation testing saves time and cost by reducing manual effort
Regression testing ensures that the software still works after changes
My role in regression testing is to create and execute automated test cases
I also analyze test results and report defects to the development team
Q4. Tell me one critical problem statement of your application in which you have automated and the solution you have provided for the same
One critical problem statement automated was testing the login functionality for multiple user roles
Automated testing of login functionality for different user roles
Used Selenium WebDriver to automate login process
Created test scripts to simulate login scenarios for admin, user, and guest roles
Q5. How do you perform security testing for login page?
Perform security testing for login page by conducting penetration testing, input validation, authentication testing, and session management testing.
Conduct penetration testing to identify vulnerabilities in the login page
Perform input validation testing to ensure only valid inputs are accepted
Test authentication mechanisms to prevent unauthorized access
Check session management to prevent session hijacking
Use tools like Burp Suite, OWASP ZAP, and Nessus for comprehensive testi...read more
Q6. Which oops concepts have been used in selenium framework?
Encapsulation, Inheritance, Polymorphism, and Abstraction are the OOP concepts used in Selenium framework.
Encapsulation: Used to hide the internal implementation details of the classes. For example, using private variables and methods to restrict access.
Inheritance: Allows classes to inherit properties and behavior from other classes. For example, creating a base test class with common methods and properties.
Polymorphism: Allows methods to behave differently based on the obje...read more
Share interview questions and help millions of jobseekers 🌟
Q7. Find duplicates in a string and count repeated letters
Find duplicates in a string and count repeated letters
Iterate through each character in the string
Use a hash map to store the count of each character
If a character is already present in the hash map, increment its count
After iterating through the string, filter the hash map to get the duplicate characters and their counts
Q8. Write test case around a microservice which schedules messages.
Test case for a microservice scheduling messages
Verify that messages are scheduled correctly based on specified time
Check if messages are sent to the correct recipients
Ensure that messages are not duplicated or lost during scheduling
Senior Software Engineer Testing Jobs
Q9. Write test cases of their website and write one or 2 methods of selenium
Write test cases for a website and provide examples of Selenium methods.
Test cases should cover different functionalities of the website, such as login, registration, search, and checkout.
Test cases should include both positive and negative scenarios.
Examples of Selenium methods: findElement, click, sendKeys, getText, getTitle, etc.
Q10. What is differnece between test cases and test scenario
Test cases are detailed steps to test a specific functionality, while test scenarios are high-level descriptions of a feature to be tested.
Test cases are specific steps to be executed to validate a particular functionality or requirement.
Test scenarios are broader and describe a high-level overview of what needs to be tested.
Test cases are detailed and include input data, expected results, and execution steps.
Test scenarios are more general and may not include specific detail...read more
Q11. Why we use aglile node, Advantages and disadvantages
Agile methodology is used for software development to promote flexibility and collaboration.
Advantages of Agile: promotes flexibility, encourages collaboration, allows for quick adaptation to changes
Disadvantages of Agile: can be challenging to implement in large teams, requires constant communication and coordination
Q12. How do you generally test your mobile functionality
I test mobile functionality using a combination of manual testing, automated testing, and device testing.
I conduct manual testing to ensure all features work as expected on different devices and operating systems.
I use automated testing tools like Appium or XCTest to run test scripts and catch regressions quickly.
I perform device testing on a variety of physical devices to check for compatibility and performance issues.
I also utilize emulators and simulators to simulate diffe...read more
Q13. What major issues faced while testing million of data
Major issues faced while testing millions of data include performance issues, data integrity issues, and scalability challenges.
Performance issues due to large data volume impacting test execution time
Data integrity issues such as data corruption or loss during testing
Scalability challenges in handling and processing large amounts of data
Q14. Do we need session handling in selenium?
Yes, session handling is important in Selenium for maintaining user state and avoiding errors.
Session handling helps maintain user state between requests
It prevents errors caused by multiple users sharing the same session
It allows for efficient use of server resources
Examples include using cookies or URL rewriting to maintain session state
Q15. Difference between sanity and smoke testing?
Sanity testing is a narrow and deep testing approach, while smoke testing is a broad and shallow testing approach.
Sanity testing is performed to check if the critical functionalities of the application are working as expected.
Smoke testing is performed to check if the application is stable enough for further testing.
Sanity testing is usually performed after a build is received, while smoke testing is performed after a major release.
Sanity testing is a subset of regression tes...read more
Q16. What is the oops consent What is the fream work What is the api postman
OOPS stands for Object-Oriented Programming, a framework is a set of tools and libraries for software development, and Postman is a tool for testing APIs.
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of 'objects' which can contain data and code.
A framework is a collection of libraries, tools, and best practices that help developers build software applications more efficiently.
Postman is a popular tool used for testing APIs by sending reques...read more
Q17. What is the selenium What is api testing What is the smoke test What is the cucumber fream work
Selenium is a popular automation testing tool for web applications. API testing involves testing APIs directly. Smoke test is a basic test to check if the application is stable. Cucumber is a BDD framework for writing test cases.
Selenium is used for automating web application testing by simulating user interactions.
API testing involves testing the functionality, reliability, performance, and security of APIs.
Smoke test is a basic test to check if the critical functionalities ...read more
Q18. Action converting requirements to test cases
Converting requirements to test cases involves analyzing requirements, identifying test scenarios, and creating test cases.
Analyze requirements to understand the functionality
Identify test scenarios based on requirements
Create test cases for each scenario
Ensure test cases cover all possible scenarios
Review and refine test cases as needed
Q19. can you write xpath for gear icon in edge
Yes, the xpath for the gear icon in Edge can be written using the class name or other unique identifiers.
Use the class name or other unique identifiers to locate the gear icon in Edge
Example: //button[@class='gear-icon']
Q20. What is testing and explain bug life cycle
Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not.
Testing is done to identify defects or bugs in the system
Bug life cycle includes stages like New, Open, Assigned, Fixed, Verified, and Closed
New - when a bug is identified
Open - when the bug is confirmed and assigned to a developer
Assigned - when the developer starts working on the bug
Fixed - when the developer fixes the bug
Verified ...read more
Q21. Program of pyramid of numbers, Mysql queries
Program to generate pyramid of numbers and MySQL queries
For pyramid of numbers, use nested loops to print numbers in a pyramid shape
For MySQL queries, use SELECT, INSERT, UPDATE, DELETE statements to manipulate data
Use JOINs to combine data from multiple tables
Use WHERE clause to filter data based on specific conditions
Q22. Testing methodologies and Project that I have worked on
I have experience with various testing methodologies such as Agile, Waterfall, and DevOps. I have worked on projects involving automation testing, manual testing, and performance testing.
Experience with Agile, Waterfall, and DevOps testing methodologies
Worked on automation testing projects using tools like Selenium and JUnit
Performed manual testing for user interface and functionality
Conducted performance testing using tools like JMeter
Q23. diferent type of exceptions you handled and explain
Handled exceptions like NullPointerException, ArrayIndexOutOfBoundsException, IOException, etc.
NullPointerException: Occurs when trying to access a method or property of a null object.
ArrayIndexOutOfBoundsException: Occurs when trying to access an index outside the bounds of an array.
IOException: Occurs when there is an issue with input/output operations.
Q24. What is scrum and user story
Scrum is an agile framework for managing work, and user stories are short, simple descriptions of a feature told from the perspective of the person who desires the new capability.
Scrum is a framework that helps teams work together. It includes roles, events, artifacts, and rules.
User stories are short, simple descriptions of a feature told from the perspective of the end user.
User stories typically follow the format: As a [type of user], I want [some goal] so that [some reaso...read more
Q25. Java code to get second max number from an array
Java code to get second max number from an array
Sort the array in descending order
Return the second element
Q26. Count prime numbers between 1 two 100.
Use Sieve of Eratosthenes algorithm to count prime numbers between 1 to 100.
Implement Sieve of Eratosthenes algorithm to generate prime numbers up to 100.
Count the number of prime numbers generated by the algorithm.
Return the count of prime numbers between 1 to 100.
Q27. Do you understand Agile?
Yes, Agile is a software development methodology that emphasizes on iterative and incremental development.
Agile is based on the Agile Manifesto
It values individuals and interactions over processes and tools
It emphasizes on working software over comprehensive documentation
It encourages customer collaboration and responds to change
Examples of Agile methodologies include Scrum, Kanban, and XP
Q28. Explain Real Time Framework worked on?
Real Time Framework is a testing framework used for automation testing of real-time applications.
Real Time Framework is designed specifically for testing real-time applications.
It allows for automation testing of applications that require real-time data processing.
The framework provides tools and features to simulate real-time scenarios and test the application's response.
It helps in identifying performance issues and bottlenecks in real-time applications.
Examples of real-tim...read more
Q29. What is the Test execution ?
Test execution is the process of running test cases to validate the functionality of the software.
Test execution involves executing the test cases that have been designed during the test planning phase.
It is the actual process of running the tests and comparing the actual results with the expected results.
Test execution can be manual or automated, depending on the testing approach and tools used.
It helps in identifying defects and ensuring the quality of the software product....read more
Q30. How to scroll down in selenium
To scroll down in Selenium, you can use the Actions class or JavaScriptExecutor.
Use Actions class to perform keyboard and mouse actions
Scroll down using Keys class and sendKeys(Keys.PAGE_DOWN)
Alternatively, use JavaScriptExecutor to scroll down by executing JavaScript code
Q31. What are methods in selenium?
Methods in Selenium are actions that can be performed on web elements to automate testing.
findElement() - Locates a single web element on the page
findElements() - Locates multiple web elements on the page
sendKeys() - Enters text into an input field
click() - Clicks on a web element
getText() - Retrieves the text of a web element
Q32. What is Bug Life Cycle?
Bug Life Cycle is the process of a bug from identification to resolution in software testing.
Bug is identified by tester
Bug is reported in bug tracking tool
Bug is assigned to developer
Developer fixes the bug
Bug is re-tested by tester
Bug is closed if fixed or reopened if not
Q33. Different waits used in selenium
Different waits used in Selenium
Implicit Wait
Explicit Wait
Fluent Wait
Thread.sleep()
WebDriverWait
Q34. POM framework in detail
POM is a design pattern used in Selenium for creating object repositories and organizing test code.
POM stands for Page Object Model
It separates the test code from the page objects
Each page is represented as a class and contains its own methods and locators
It improves code reusability and maintainability
It helps in reducing code duplication
It is widely used in Selenium automation testing
Q35. What is OOPs concenpt?
OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
OOPs focuses on creating objects that interact with each other to solve a problem
Key principles of OOPs include encapsulation, inheritance, and polymorphism
Encapsulation allows objects to hide their internal state and require all interaction to be performed through an object's methods
Inheritance allows cl...read more
Q36. Difference between string and stringbuffer
String is immutable, StringBuffer is mutable.
String is immutable, meaning once created, its value cannot be changed.
StringBuffer is mutable, meaning its value can be changed after creation.
String is thread-safe, while StringBuffer is not.
StringBuffer is faster for concatenation operations compared to String.
Q37. Functional and non functional difference
Functional requirements specify what the system should do, while non-functional requirements specify how the system should perform.
Functional requirements focus on specific behaviors of the system, such as user interactions or data manipulation.
Non-functional requirements focus on qualities of the system, such as performance, scalability, security, and usability.
Functional requirements are typically easier to test and verify compared to non-functional requirements.
Examples of...read more
Q38. Write a queryto have Distinct records
Use SELECT DISTINCT to retrieve unique records from a table
Use SELECT DISTINCT column_name FROM table_name to retrieve unique values from a specific column
Use SELECT DISTINCT * FROM table_name to retrieve unique records from the entire table
Q39. Integretity in environment
Integrity in environment refers to the consistency, accuracy, and reliability of the testing environment.
Ensuring that test environments are set up correctly and consistently
Verifying that test data is accurate and reliable
Maintaining the integrity of test results by following best practices
Regularly monitoring and updating the testing environment
Q40. Negative testcases of instagram
Negative test cases for Instagram
Invalid username and password combination
Uploading an unsupported file format
Sending a direct message to a non-existent user
Attempting to follow a private account without approval
Creating a post without any content
Q41. Explain STLC and SDLC
STLC is a process of testing software while SDLC is a process of developing software.
STLC stands for Software Testing Life Cycle
It involves planning, designing, executing and reporting of tests
SDLC stands for Software Development Life Cycle
It involves planning, designing, developing, testing and maintaining software
STLC is a subset of SDLC
STLC ensures that the software meets the specified requirements and is of high quality
Q42. Tell about OOPS concepts.?
OOPS concepts are fundamental principles of object-oriented programming such as inheritance, encapsulation, polymorphism, and abstraction.
Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.
Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables and public methods.
Polymorphism: Ability to present the same interface for different data types. Example: method...read more
Q43. Expalin Architecture of your product
Our product follows a microservices architecture with a combination of front-end, back-end, and database layers.
Utilizes microservices architecture for scalability and flexibility
Front-end layer handles user interface and interactions
Back-end layer manages business logic and data processing
Database layer stores and retrieves data efficiently
Communication between layers is done through APIs
Q44. Java program of string recursion
A Java program that demonstrates string recursion.
Create a method that takes a string as input and recursively calls itself to manipulate the string.
Use base case to stop the recursion.
Example: public static String reverseString(String str) { if (str.isEmpty()) { return str; } else { return reverseString(str.substring(1)) + str.charAt(0); } }
Q45. Find the second largest in an array
Find the second largest element in an array of strings
Convert the array of strings to an array of integers
Sort the array in descending order
Return the second element in the sorted array
Q46. Complete lifecycle of testing
The complete lifecycle of testing involves planning, designing, executing, and reporting.
Planning: Define test objectives, scope, and strategy.
Designing: Create test cases and test data.
Executing: Run tests and record results.
Reporting: Analyze results and report defects.
Retesting: Verify fixes and retest defects.
Regression testing: Ensure changes do not impact existing functionality.
Q47. Explain Defect life cycle
Defect life cycle is the process of identifying, reporting, prioritizing, fixing, and verifying defects in software.
Defect is identified by testers during testing
Defect is reported to development team
Development team prioritizes and fixes the defect
Fixed defect is verified by testers
If defect is not fixed, it goes back to development team
If defect is fixed, it is closed
Q48. Test Management tools used
We use a variety of test management tools depending on the project requirements.
For agile projects, we use JIRA for test case management and execution.
For performance testing, we use LoadRunner and JMeter.
For automation testing, we use Selenium and Appium.
For defect tracking, we use Bugzilla and HP ALM.
We also use custom-built tools for specific project needs.
Q49. Functional modules worked on
Worked on functional modules related to e-commerce and financial services.
Developed and tested payment gateway integration module
Implemented order management and tracking module
Worked on inventory management and stock tracking module
Q50. Challenges during testing
Challenges during testing include time constraints, complex software systems, and ensuring comprehensive test coverage.
Time constraints: Limited time for testing can result in incomplete test coverage and potential bugs going undetected.
Complex software systems: Testing large and intricate software systems can be challenging due to the interconnectedness of components and potential dependencies.
Comprehensive test coverage: Ensuring that all possible scenarios and edge cases a...read more
Interview Questions of Similar Designations
Top Interview Questions for Senior Software Engineer Testing Related Skills
Interview experiences of popular companies
Calculate your in-hand salary
Confused about how your in-hand salary is calculated? Enter your annual salary (CTC) and get your in-hand salary
Reviews
Interviews
Salaries
Users/Month