BUSINESSNEXT Product Intern Interview Questions and Answers

Fancy string problem

Q1. You are given 2 tables, customer and orders, you have to write an SQL query to fetch the total order placed by each customer and also give the total order amount.
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Q2. Java Streams question to find the total number of employees that have salary greater than 50000
Ans. 
Use Java Streams to find total employees with salary > 50000
• Filter employees with salary > 50000 using stream.filter()

• Count the number of employees using stream.count()
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Q3. The various annotations used in Springboot @Entity, @RestController etc
Ans. 
Annotations in Springboot like @Entity, @RestController are used for defining classes and endpoints respectively.
• Annotations like @Entity are used to define JPA entities in Springboot.

• Annotations like @RestController are used to define RESTful web services endpoints.

• Annotations like @Autowired are used for dependency injection in Springboot.
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Q4. AWS services used in my previous project
Ans. 
In my previous project, I used AWS services such as EC2, S3, and RDS for hosting, storage, and database management.
• EC2 for hosting application servers

• S3 for storing and retrieving files

• RDS for managing relational databases
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Q1. All questions were asked based on my resume. So prepare well from your resume.
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Q1. 4th round was a one on one with the manager, asked me general questions about why I was looking for a job change.
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