Cognizant Associate Quality Assurance Engineer Interview Questions and Answers

Q1. What is Regression testing.
Ans. 
Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.
• Performed after code changes to verify that existing features still work correctly

• Helps prevent the introduction of new bugs or issues

• Can be automated to save time and effort

• Examples: running test cases after a software update, checking for bugs after adding new featur
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Q2. Difference between list and tuple
Ans. 
List is mutable, tuple is immutable in Python.
• List can be modified after creation, tuple cannot.

• List uses square brackets [], tuple uses parentheses ().

• List is used for collections of items that may change, tuple for fixed collections.

• Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)
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Q3. Program to check if the no. is prime
Ans. 
A program to check if a number is prime or not
• Iterate from 2 to square root of the number and check if it divides the number evenly

• If any number divides the given number, it is not prime

• If no number divides the given number, it is prime
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Q1. Program to find pallindrome.
Ans. 
Program to find palindrome in an array of strings.
• Iterate through each string in the array

• Reverse each string and compare with original string

• If they are equal, it is a palindrome
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Q2. How to find element using css selector.
Ans. 
To find an element using CSS selector, you can use the document.querySelector() method.
• Use document.querySelector() method with the CSS selector as the argument.

• Make sure the CSS selector is unique to the element you want to find.

• You can also use document.querySelectorAll() to find multiple elements.
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Scenario based questions

Q1. API testing related questions were asked
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Q2. What is api testing
Ans. 
API testing is a type of software testing that involves testing APIs directly to ensure they meet functionality, reliability, performance, and security requirements.
• API testing involves testing the functionality, reliability, performance, and security of APIs.

• It focuses on verifying that the API meets its specifications and works as expected.

• API testing can be done manually or using automated tools like Postman or Soap...read more
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Q3. How do you log bugs
Ans. 
I log bugs by documenting detailed steps to reproduce, including screenshots and logs.
• Document detailed steps to reproduce the bug

• Include screenshots or videos if applicable

• Attach relevant logs or error messages

• Assign severity and priority levels to the bug

• Track bug status and resolution in a bug tracking tool
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Q4. What is agilemethodology
Ans. 
Agile methodology is a software development approach that emphasizes flexibility, collaboration, and iterative development.
• Focus on delivering working software in short iterations

• Emphasizes collaboration between cross-functional teams

• Allows for changes and adjustments throughout the development process

• Common practices include daily stand-up meetings, sprint planning, and retrospectives
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Q5. What is selenium framework
Ans. 
Selenium framework is a set of tools, libraries, and best practices used for automated testing of web applications.
• Selenium framework allows for writing and executing automated tests for web applications.

• It provides features like test case management, reporting, and integration with CI/CD tools.

• Popular frameworks built on top of Selenium include TestNG, JUnit, and Cucumber.

• Selenium WebDriver is a key component of the f...read more
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Q1. Write a program to reverse a string
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Easy very simple questions sked in test

Q1. Tell me about yourself
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Q2. Explain SDLC
Ans. 
SDLC stands for Software Development Life Cycle, a process used to design, develop, and test software.
• SDLC is a systematic process for building software applications.

• It includes phases like planning, analysis, design, implementation, testing, and maintenance.

• Each phase has specific goals and deliverables to ensure the quality and success of the software.

• Examples of SDLC models include Waterfall, Agile, and DevOps.
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Hackerank platform with multiple questions.

Q1. Oops, Java, Java collection, String
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Q1. Questions on object oriented programming concepts in java
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Q2. How to handle multiple windowns in selenium
Ans. 
Handling multiple windows in Selenium involves switching between windows and performing actions on each window.
• Use getWindowHandles() to get all window handles

• Switch to a specific window using switchTo().window(handle)

• Perform actions on the window

• Switch back to the original window if needed
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Good questions on java coding

Q1. Salary expectation
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Q1. Testing concepts and coding
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Q2. Automation concepts
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Q1. Generic HR question
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Q2. Exp related questions
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