TCS QA Specialist Interview Questions and Answers

Q1. Match 14 characters before @ , given an url
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Q2. Match Atleast one capital, once small case, 1 digit and 1 special character using regex?
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Q3. Given a string ="This is my interview for QA engineer"; write code to give an output of each word with vowel count?
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Q4. Given a 2X2 Matrix, find the maximum diagonal sum?
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Q5. How do you find the selected option text from dropdown in selenium?
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Q6. Given a dropdown contains options with duplicates. Find those duplicates along with its occurrence/frequency?
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Q7. How do you resolve merge conflicts in git?
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Q8. How to bring specific commit changes to your branch?
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Q9. How to switch to frame and come out of it in selenium?
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Q1. "Hello world" java program to print the count of letter 'l'
Ans. 
A Java program to count the occurrences of the letter 'l' in the string 'Hello world'.
• Create a Java program with a main method.

• Initialize a String variable with the value 'Hello world'.

• Use a loop to iterate through each character in the string and count the occurrences of the letter 'l'.

• Print the count of 'l' at the end.
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Q2. "Hello world" java program to print output as "olleH dlrow"
Ans. 
Reverse the characters of each word in a given string
• Split the input string into an array of words

• Reverse each word in the array

• Join the reversed words back into a single string
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Q3. What is the diff between comparator and comparable
Ans. 
Comparator is an interface used to sort objects, while Comparable is an interface used to compare objects for natural ordering.
• Comparator is used to define custom sorting logic for objects, while Comparable is used for natural ordering based on the class's implementation of compareTo() method.

• Comparator can be used to sort objects of different classes, while Comparable is implemented within the class itself.

• Example: So...read more
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Q4. What is lamda expression
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Lambda expression is a concise way to represent an anonymous function in programming languages.
• Lambda expressions are used to create small, inline functions without a formal definition.

• They are commonly used in functional programming languages like Python, Java, and C#.

• Lambda expressions can be used to simplify code and make it more readable.

• Example: (x, y) -> x + y is a lambda expression that takes two parameters a
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Q5. What is contructor chaining
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Constructor chaining is the process of calling one constructor from another constructor in a class.
• Allows reusing code and avoiding duplication

• Can be achieved using 'this' keyword in the constructor

• Helps in initializing objects with different parameters
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Q6. Appium & Selenium architecture
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Q7. How to handle notifications in mobile automation
Ans. 
Handle notifications in mobile automation by using automation tools to interact with notifications, verify content, dismiss or respond to them.
• Use automation tools like Appium or Espresso to interact with notifications

• Verify the content of notifications by extracting text or images

• Dismiss notifications to continue with test execution

• Respond to notifications if required for test scenarios

• Handle different types of notifi...read more
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Q8. How to handle if element xpath is different in ios and android apps
Ans. 
Use platform-specific locators or conditional statements to handle different element xpaths in iOS and Android apps.
• Use platform-specific locators like accessibility id for iOS and resource id for Android

• Implement conditional statements to switch between different xpaths based on the platform

• Utilize Appium's platformName capability to identify the platform and adjust the element xpath accordingly
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Q9. Different TestNG annotations and order
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TestNG annotations include @Test, @BeforeMethod, @AfterMethod, @BeforeClass, @AfterClass, @BeforeSuite, @AfterSuite
• @Test - denotes a test method

• @BeforeMethod - runs before each test method

• @AfterMethod - runs after each test method

• @BeforeClass - runs before the first test method in the current class

• @AfterClass - runs after the last test method in the current class

• @BeforeSuite - runs before all tests in the suite

• @AfterSu
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Q10. What is pom.xml and how to mention dependencies
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pom.xml is a configuration file used in Maven projects to define project settings and dependencies.
• pom.xml stands for Project Object Model XML

• It is used in Maven projects to manage project configuration, build settings, and dependencies

• Dependencies are mentioned inside the <dependencies> tag in pom.xml

• Each dependency is specified with <groupId>, <artifactId>, and <version>
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Q1. What is Regression testing.
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Q2. Difference between list and tuple
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Q3. Program to check if the no. is prime
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Q1. Program to find pallindrome.
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Q2. How to find element using css selector.
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Scenario based questions

Q1. Java string question, Define Automation framework, Explain jenkins usage, what is the difference ebtween Waterfall and Agile modal.
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Q2. Explain the usage of joins in SQL.
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column.

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;
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Q3. Explain the testNG usage
Ans. 
TestNG is a testing framework for Java that supports various testing levels and annotations.
• TestNG allows for easy configuration of test suites, test cases, and test methods.

• It supports parallel execution of tests, data-driven testing, and parameterization.

• TestNG provides detailed test reports and allows for grouping of test methods.

• Annotations like @Test, @BeforeSuite, @AfterSuite, etc., help in defining test methods
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Q4. Explain POM concept in Automation framework.
Ans. 
POM is a design pattern in automation testing where web pages are represented as classes, and the interactions are defined as methods.
• POM helps in creating a clear separation between test scripts and page objects.

• It improves test maintenance and readability.

• Page classes contain locators and methods to interact with the elements on the page.

• Test scripts call these methods to perform actions on the page.

• Example: LoginPag...read more
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Q1. Explain your day to day activity as a QA lead.
Ans. 
As a QA lead, my day to day activities involve overseeing testing processes, coordinating with team members, creating test plans, and ensuring quality standards are met.
• Coordinate with team members to assign testing tasks and ensure deadlines are met

• Create and review test plans, test cases, and test scripts

• Conduct regular meetings with the team to discuss progress and address any issues

• Collaborate with developers and o...read more
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Q1. API testing related questions were asked
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Q2. What is api testing
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Q3. How do you log bugs
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Q4. What is agilemethodology
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Q5. What is selenium framework
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Q1. Java collections basics
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Q2. How to handle webtable in selenium
Ans. 
Webtables in Selenium can be handled using methods like findElements, getText, getAttribute, etc.
• Use findElements method to locate the table and its rows

• Iterate through rows and columns using loops

• Use getText method to retrieve text from cells

• Use getAttribute method to retrieve specific attributes like class, id, etc.
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Q1. Collections,List set diff,basic coding
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Q2. Cucumber basics
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Q3. Java interface Framework explanation
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Q1. Write a program to reverse a string
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