Create New and Optimised Question Answer List.

Created New List of Question in which the answers will be provided in to different formats. 1. Explanation (For Understanding The concept) 2. Summary (To give answer in optimized and satisfying way to the interviewer).

Experience-2-Year/Interview-Answers-Optimised.md

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+# Questions List :
+
+## Core Java Concepts
+
+1. What are the main principles of Object-Oriented Programming (OOP)?
+2. Explain the differences between JDK, JRE, and JVM.
+3. What is garbage collection in Java and how does it work?
+4. Can you describe the different types of memory areas allocated by JVM?
+5. What is the purpose of the final keyword in Java?
+6. Explain the differences between String, StringBuilder, and StringBuffer.
+7. What are the key features introduced in Java 8?
+8. How does the synchronized keyword work in Java?
+9. Describe the concept of Java Collections Framework.
+10. What is the difference between ArrayList and LinkedList?
+11. Explain the concepts of HashMap and how it works internally.
+12. What is the difference between == and equals() in Java?
+
+## Spring Boot and Related Annotations
+
+1. What is Spring Boot and why is it used?
+2. Explain the @SpringBootApplication annotation.
+3. What is the difference between @RestController and @Controller?
+4. How do @RequestMapping and @GetMapping, @PostMapping, etc., work?
+5. What is the purpose of @Autowired and how does it work?
+6. Describe the use of @Component, @Service, and @Repository.
+7. What is the @Configuration annotation used for?
+8. Explain the @Bean annotation and its use.
+9. How do @Entity, @Table, @Id, and @GeneratedValue work together in Spring Data JPA?
+10. What is the role of @EnableAutoConfiguration in Spring Boot?
+11. Describe how @ComponentScan works in a Spring Boot application.
+12. What is the use of @Value annotation in Spring Boot?
+13. How does @Profile help in managing different environments in Spring Boot?
+14. Explain the difference between @PathVariable and @RequestParam.
+15. How does @RequestBody and @ResponseBody work in Spring MVC?
+16. What is the use of @ExceptionHandler annotation?
+
+## Database and SQL
+
+1. What is indexing and why is it important?
+2. Describe the concept of sharding in databases.
+3. What is data normalization and why is it necessary?
+4. Explain the different types of SQL joins.
+5. How would you write a query to find the second highest salary in a table?
+6. What are ACID properties in databases?
+7. Explain the concept of transactions and why they are important.
+8. What is the difference between SQL and NoSQL databases?
+9. How does the GROUP BY clause work in SQL?
+10. Describe the differences between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN.
+11. What is the purpose of a foreign key in a database?
+12. How would you optimize a slow-running query?
+
+## General and Behavioral Questions
+
+1. Tell me about yourself and your professional background.
+2. Why are you interested in this position?
+3. Can you describe a challenging project you worked on and how you handled it?
+4. How do you prioritize your tasks when working on multiple projects?
+5. Describe a time when you had to learn a new technology quickly. How did you approach it?
+6. How do you handle conflicts within your team?
+7. What motivates you to work in software development?
+8. How do you keep up-to-date with new technologies and industry trends?
+9. Describe a situation where you had to debug a complex issue.
+10. What are your strengths and weaknesses?
+
+## Detailed Technical Questions
+
+1. How does the Java Stream API work? Can you provide an example?
+2. Explain the difference between checked and unchecked exceptions in Java.
+3. What is a singleton class and how do you implement it?
+4. Describe how you would handle transactions in Spring Boot.
+5. Explain the concept of microservices and how you have implemented them in your projects.
+6. What is a RESTful API and how does it differ from SOAP?
+7. How do you ensure the security of your applications?
+8. What is the difference between SOAP and RESTful web services?
+9. How do you manage dependencies in your Spring Boot projects?
+10. Explain the concept of Aspect-Oriented Programming (AOP) in Spring.
+
+## Practical Coding Questions
+
+1. Write a Java program to reverse a string without using any built-in reverse functions.
+2. Given an array of integers, write a Java function to find the longest consecutive sequence.
+3. How would you implement a custom exception in Java?
+4. Write a SQL query to find employees who earn more than the average salary.
+5. Develop a RESTful API using Spring Boot to manage a list of products. Include endpoints for CRUD operations.
+
+## Scenario-Based Questions
+
+1. Describe how you would migrate a monolithic application to a microservices architecture.
+2. How would you handle a situation where a critical bug is found just before the release?
+3. Explain how you would design a scalable system for a high-traffic e-commerce website.
+4. How would you approach optimizing the performance of a Java application?
+5. Describe your process for integrating a third-party API into your application.