TCS Automation Test Engineer Interview Questions and Answers

Q1. Write java program to print sum of digits from a given string eg: "abcd23"
Ans. 
Java program to print sum of digits from a given string
• Iterate through each character in the string

• Check if the character is a digit using Character.isDigit() method

• Convert the digit character to integer using Character.getNumericValue() method

• Sum up all the digits found in the string
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Q2. Explain oops concepts used in your framework with example?
Ans. 
OOPs concepts used in the framework include inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance is used to create a parent-child relationship between classes. For example, a base class 'Page' can be inherited by 'HomePage' and 'LoginPage' classes.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass. For instance, a 'click' method can be implemented different...read more
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Q3. Explain polymorphism
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Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example of compile-time polymorphism: function overloading in Java.

• Example of runtime polymorphism: method overriding in Java...read more
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Q4. Java program to print the sum of elements in string array eg: String[] arr = {"1","2","3"}
Ans. 
Java program to print the sum of elements in a string array.
• Convert each element in the string array to an integer using Integer.parseInt()

• Sum up all the integers to get the total sum
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Q1. Selenium related question
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Q2. Java/Python concepts
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Q1. Why TCS and what makes you different from others
Ans. 
I chose TCS for its global presence, reputation for innovation, and opportunities for growth.
• TCS is a global leader in IT services with a strong reputation for innovation and quality.

• I am attracted to TCS's focus on continuous learning and development, which aligns with my career goals.

• TCS offers diverse opportunities for growth and career advancement, which is important to me.

• I believe my skills in automation testing ...read more
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Q2. Resume walkthrough
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Q1. How soon you can join
Ans. 
I can join within 2 weeks of receiving an offer.
• I have a 2-week notice period at my current job.

• I need time to wrap up my current projects before starting a new role.

• I am excited about the opportunity and eager to join the team.

• I can start sooner if necessary, depending on the circumstances.
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You must know one programming language is must , Basic , Java with selenium you have getting experienced it's good

Q1. When we are using the automation testing
Ans. 
Automation testing is the use of software to execute tests and compare actual outcomes with expected outcomes.
• Automation testing helps in reducing human errors and increasing test coverage.

• It is useful for repetitive test cases, regression testing, and load testing.

• Tools like Selenium, Appium, and JUnit are commonly used for automation testing.

• Automation testing can be used for web applications, mobile applications, an...read more
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Q2. What is the TestNG tool and when we are using this tool to test
Ans. 
TestNG is a testing framework designed for unit testing and integration testing in Java.
• TestNG is used for writing and running tests in Java programming language.

• It supports annotations like @Test, @BeforeMethod, @AfterMethod for test configuration.

• TestNG allows grouping of test cases, prioritizing tests, and parallel execution.

• It generates detailed test reports and supports data-driven testing.

• TestNG can be integrated...read more
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Speak boldly depends on the title

Q1. Why did you select in this company
Ans. 
I selected this company for its reputation in the industry, opportunities for growth, and positive work culture.
• Reputation in the industry - Company is known for its innovative solutions and quality products.

• Opportunities for growth - Company offers training programs and career advancement opportunities.

• Positive work culture - Employees speak highly of the supportive and collaborative environment.

• Location - Convenient ...read more
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Q2. What is your expectations about in this organisation
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I expect to work in a collaborative environment with opportunities for growth and learning.
• Opportunities for professional development and training

• Collaborative team environment

• Clear communication and feedback channels

• Supportive management

• Work-life balance
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Q1. Types of Locators
Ans. 
Locators are used in automation testing to identify web elements on a webpage. Common types include ID, class name, name, xpath, and CSS selector.
• ID: Unique identifier for an element

• Class name: Name of the class attribute of an element

• Name: Name attribute of an element

• XPath: Path of the element in the HTML structure

• CSS selector: Selector based on CSS attributes
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Q2. What is Interface
Ans. 
An interface in programming defines a contract for classes to implement, specifying methods and properties that must be included.
• Interfaces in programming are used to define a set of methods that a class must implement.

• They provide a way to achieve abstraction and multiple inheritance in languages that do not support it.

• Interfaces are like blueprints for classes, ensuring consistency and standardization in code.

• Example...read more
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Q3. What is abstract class
Ans. 
Abstract class is a class that cannot be instantiated and may contain abstract methods.
• Cannot be instantiated directly

• May contain abstract methods that must be implemented by subclasses

• Can have both abstract and non-abstract methods

• Used for defining a common interface for subclasses
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Q4. Absolute and relative xpath difference
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Absolute xpath starts from the root node, while relative xpath starts from any node in the DOM.
• Absolute xpath starts with a single forward slash (/) and is more brittle as any changes in the DOM structure can break the xpath.

• Relative xpath starts with a double forward slash (//) and is more flexible as it can start from any node in the DOM.

• Absolute xpath is longer and less readable compared to relative xpath.

• Example: A...read more
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Q5. Different exceptions
Ans. 
Different exceptions in automation testing
• Common exceptions include NoSuchElementException, TimeoutException, StaleElementReferenceException

• Handle exceptions using try-catch blocks to gracefully handle errors

• Custom exceptions can be created for specific scenarios

• Exceptions can be logged for debugging purposes
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Q6. String Duplicates coding
Ans. 
Identify and remove duplicate strings from an array while maintaining the original order.
• Use a Set to track seen strings and filter duplicates. Example: ['apple', 'banana', 'apple'] becomes ['apple', 'banana'].

• Iterate through the array and add unique strings to a new array. Example: ['cat', 'dog', 'cat'] results in ['cat', 'dog'].

• Consider case sensitivity. Example: ['Hello', 'hello'] treats them as different strings.

• Re...read more
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