Grandtrine Entertainment Interview Questions and Answers

Employee model CRUD APIS USING SRPING BOOT & MYSQL

Q1. TELL ME ABOUT YOUR SELF
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Q2. SPRING BOOT VS SPRING
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Spring Boot is a framework that simplifies Spring development by providing pre-configured settings and dependencies.
• Spring Boot is built on top of the Spring framework.

• Spring Boot provides a standalone executable that can run the application.

• Spring Boot provides auto-configuration, which reduces the need for manual configuration.

• Spring Boot provides a wide range of starter dependencies that can be easily added to the p...read more
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Q3. JPA VS HIBERNATE WHAT IS ADVANTAGE USING JPA
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JPA is a specification while Hibernate is an implementation of JPA. JPA provides a standard API for ORM frameworks.
• JPA is a standard API for ORM frameworks

• JPA provides a vendor-neutral interface

• JPA allows for easy switching between ORM frameworks

• Hibernate is an implementation of JPA

• Hibernate provides additional features beyond JPA
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Q4. WHTA IS MYSQL GROUP BY & DISTINCT
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MySQL GROUP BY is used to group rows with same values. DISTINCT is used to remove duplicate values from a column.
• GROUP BY is used with aggregate functions like COUNT, SUM, AVG, etc.

• DISTINCT is used to retrieve unique values from a column.

• GROUP BY and DISTINCT can be used together to group and retrieve unique values.

• Example: SELECT COUNT(*) FROM table_name GROUP BY column_name;

• Example: SELECT DISTINCT column_name FROM t
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Q5. WHAT ARE SCOPES ARE AVAILABLE IN SPRING
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Spring has four scopes: Singleton, Prototype, Request, and Session.
• Singleton scope creates a single instance of a bean.

• Prototype scope creates a new instance of a bean every time it is requested.

• Request scope creates a new instance of a bean for each HTTP request.

• Session scope creates a new instance of a bean for each HTTP session.
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Q1. Basic Technical Interview
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Q2. Basics on Framework used
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Q3. Infrastructure related
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Q4. Process and security
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Q1. Salary expectations and negotiation
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It was Very Easy and HR was Very Friendly Nature

Q1. What Is OOOps and explain those?
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OOOps stands for Out Of Order packets. It refers to packets that arrive at their destination out of sequence.
• OOOps can occur in network communication when packets are sent out of order and arrive at the destination in a different order than they were sent.

• This can lead to issues in data transmission and can cause delays in processing the information.

• One way to handle OOOps is by using sequence numbers in packets to ens...read more
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Q2. What is Exception Handling ?
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Exception handling is a mechanism to handle runtime errors and prevent program crashes.
• It is a way to deal with unexpected errors or exceptional conditions in a program.

• Exceptions can be caught and handled using try-catch blocks.

• Common exceptions include NullPointerException, ArrayIndexOutOfBoundsException, and IOException.

• Handling exceptions properly can improve the robustness and reliability of a software application
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There was no aptitude test; we proceeded directly to coding questions.

Level 1, Level 2, and Level 3 questions of simple, medium, and hard difficulty.

Q1. Normal hr questions
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Q2. About yourself, etc
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Q1. Java program for duplicate elements in array
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Strong appitude knowledge is required.

Q1. String , arrays, oops
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Q1. Strecture of sql statement
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SQL statements are used to interact with databases by performing operations like querying, updating, and deleting data.
• SQL statements are made up of keywords like SELECT, INSERT, UPDATE, DELETE, etc.

• They are structured in a specific order, with clauses like WHERE, ORDER BY, GROUP BY, etc.

• Tables are referenced using their names, and conditions are specified to filter data.

• Joins can be used to combine data from multiple
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