TO THE NEW Interview Questions, Process, and Tips

Q1. Explain Oops concepts
Ans. 
Oops concepts refer to Object-Oriented Programming principles like Inheritance, Encapsulation, Polymorphism, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detail
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Q2. How to handle windows in Selenium
Ans. 
Handling windows in Selenium involves switching between windows, handling pop-ups, and managing multiple windows.
• Use getWindowHandles() to get handles of all open windows

• Use switchTo().window() to switch between windows

• Use getWindowHandle() to get handle of current window

• Handle pop-ups using Alert class or switchTo().alert()

• Manage multiple windows by storing window handles in a set or list
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Q3. What is Robot class
Ans. 
Robot class is a class in Java that is used to generate native system input events for test automation purposes.
• Used for simulating keyboard and mouse input events in test automation scripts

• Can be used to automate tasks like filling out forms, clicking buttons, etc.

• Helps in testing GUI applications by interacting with the user interface

• Example: robot.keyPress(KeyEvent.VK_ENTER) to simulate pressing the Enter key
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General awareness, half hour

Line sketch, half n hour.

Q1. One to one with art director
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Q2. About the company policies, team etc
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Q3. About my journey throughout the time span
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Q4. About the role I have to do
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Q5. About the leaving reason of previous company.
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Q1. Pattern based ques: code 1 23 345 6789
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Q2. Code to find freq of all chars in a string using hash map
Ans. 
This code snippet counts the frequency of each character in a string using a hash map (dictionary in Python).
• Use a hash map (dictionary) to store character counts.

• Iterate through each character in the string.

• For each character, increment its count in the hash map.

• Example: For the string 'hello', the output will be {'h': 1, 'e': 1, 'l': 2, 'o': 1}.
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Q3. Exception handling output ques
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Q4. String o/p ques based on string pool.
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Q5. Spring boot vs spring and microservice adv/ challenges
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Spring Boot simplifies Spring application development, while microservices enhance scalability and maintainability.
• Spring Boot offers auto-configuration, reducing boilerplate code. Example: Setting up a REST API with minimal configuration.

• Microservices architecture allows independent deployment of services, enhancing scalability. Example: A user service and an order service can be deployed separately.

• Spring provides a ...read more
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Q6. Mapping in hibernate and entity class annotations. Transient use
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Q7. Functional interface and lambda. Some oops ques on interface and abstract class.
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Q1. Code to find loop in linked list
Ans. 
Detects if a linked list has a cycle using Floyd's Tortoise and Hare algorithm.
• Use two pointers: slow and fast. Slow moves one step, fast moves two steps.

• If there's a loop, slow and fast will eventually meet.

• If fast reaches the end (null), the list has no loop.

• Example: For a list 1 -> 2 -> 3 -> 4 -> 2 (cycle), slow and fast meet at 2.
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Q2. Basic array based coding ques
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Q3. Api scenario based ques.
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Q4. Multithreading o/p based ques
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Q5. Put vs patch vs post and some other api based ques
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Q1. About Your project
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Q2. CI/CD,AWS,Docker
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Q3. Any certification
Ans. 
Yes, I have obtained the AWS Certified DevOps Engineer - Professional certification.
• Obtained AWS Certified DevOps Engineer - Professional certification

• Certification validates expertise in implementing and managing continuous delivery systems on AWS

• Demonstrates ability to automate security controls, governance processes, and compliance validation
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Q1. Projects,Platforms,Docker
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Q2. About your skills in platforms
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