TCS Software Engineer -QA & Testing 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
Answered by AI
Add your answer
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)
Answered by AI
Add your answer
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
Answered by AI
Add your answer

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
Answered by AI
Add your answer
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.
Answered by AI
Add your answer

Scenario based questions

Q1. Explain your framework, API fundamentals
Add your answer
Q2. Exception handling in selenium, error codes in api testing etc
Add your answer
Q3. Synchronization handling in code
Add your answer
Q4. Oops concepts used in project
Add your answer
Q5. Agile process and terminologies
Add your answer

Q1. Stlc question asked manual qa
Add your answer

Q1. Coding asked sql query
Add your answer

Q1. Tell me about yourself
Ans. 
I am a dedicated QA Engineer with 5 years of experience in testing web and mobile applications.
• 5 years of experience in QA testing

• Proficient in testing web and mobile applications

• Strong attention to detail and problem-solving skills
Answered by AI
Add your answer
Q2. What's your expected salary
Add your answer

Two coding questions 30 mins

Q1. How to do when dev think it is bug but you do not agree
Ans. 
Discuss with dev, review requirements and test cases, provide evidence from testing
• Have a discussion with the developer to understand their perspective and reasoning behind considering it a bug

• Review the requirements and test cases to ensure that the behavior in question aligns with the expected functionality

• Provide evidence from testing, such as logs, screenshots, or test results, to support your stance

• Collaborate wit...read more
Answered by AI
Add your answer
Q2. White board coding
Add your answer

Q1. Explain about your project
Ans. 
Developed a test automation framework for a web application
• Designed and implemented test cases using Selenium WebDriver

• Integrated the framework with Jenkins for continuous integration

• Performed regression testing and reported bugs using Jira
Answered by AI
Add your answer
Q2. What are Action modes
Ans. 
Action modes are different modes in which an action can be performed in a software application.
• Action modes define how a specific action will be executed within the software.

• Examples of action modes include edit mode, view mode, delete mode, etc.
Answered by AI
Add your answer
Q3. What is wait on
Add your answer
Q4. Data base connection
Add your answer
Q5. Recovery scenario
Add your answer

Q1. WAP to run same test case 100 times
Ans. 
Write a program to run the same test case 100 times
• Use a loop to iterate 100 times

• Call the test case function inside the loop

• Track the results of each iteration if needed
Answered by AI
Add your answer
Q2. WAP to get duplicate char count
Ans. 
A program to count the number of duplicate characters in an array of strings.
• Iterate through each string in the array

• For each string, iterate through each character and count the occurrences

• Store the count of each character in a map or dictionary

• Return the characters with count greater than 1
Answered by AI
Add your answer

Bubble sort algo, String manipulation

Q1. API testing using restAssured
Ans. 
restAssured is a Java library for API testing, commonly used for testing RESTful APIs.
• restAssured is a Java library that simplifies API testing by providing a fluent interface for making HTTP requests and validating responses.

• It can be used to test RESTful APIs by sending requests (GET, POST, PUT, DELETE) and verifying the responses.

• Assertions can be made on response status codes, headers, body content, and more.

• Exampl...read more
Answered by AI
Add your answer
Q2. STLC bug life cuycle
Add your answer