Java SpringBoot and JPA Practice Exam

Java SpringBoot and JPA Practice Exam

About Java SpringBoot and JPA Exam

The Java Spring Boot and JPA Certification Exam evaluates a candidate’s proficiency in developing robust, scalable, and data-driven applications using Spring Boot and Java Persistence API (JPA). This certification is designed to test a developer's ability to build, configure, and manage Spring Boot applications with JPA for seamless database integration.

Knowledge gained

The exam covers essential topics such as Spring Boot architecture, dependency injection, RESTful APIs, database configuration, ORM mapping, transaction management, and performance optimization. It also assesses practical knowledge in working with relational databases using JPA and Hibernate, handling queries efficiently, and ensuring secure, high-performance applications.

Skills Required

Candidates taking the Java Spring Boot and JPA Certification should have expertise in:

• Understanding the framework, auto-configuration, and dependency management
• Configuring entity relationships, writing JPQL and native queries, and managing transactions
• Implementing CRUD operations, request handling, and exception management
• Connecting Spring Boot applications to relational databases such as MySQL or PostgreSQL
• Utilizing repositories, pagination, and query methods for efficient data retrieval
• Caching strategies, lazy loading, and query optimization for better application performance
• Implementing role-based access control (RBAC) using Spring Security
• Writing JUnit tests for services, controllers, and repository layers

Who should take the Exam?

This certification is ideal for:

• Java Developers looking to enhance their skills in enterprise application development with Spring Boot and JPA
• Backend Developers aiming to build scalable and efficient microservices with Spring Boot
• Full-Stack Developers who need a strong foundation in backend development and database interaction
• Software Engineers & Architects involved in designing and optimizing Java-based applications
• Technical Leads & IT Professionals who want to validate their expertise in modern Java application development

Course Outline

The Java SpringBoot and JPA Exam covers the following topics - 

Domain 1. Foundation and Project Initialization

• Course Introduction and Objectives
• Setting Up Development Environment
• Creating a Spring Boot Starter Project
• Exploring the Structure of a Spring Boot Project
• Fundamentals of Spring Framework and Spring Boot
• Understanding RESTful Web Services: HTTP Methods, Status Codes, and Annotations
• MVC Architecture: Concept and Implementation – Part 1
• MVC Architecture: Deep Dive – Part 2
• Data Transfer Objects (DTO): Purpose and Implementation
• Hands-on: Developing a RESTful Web Service
• Practical Application of @RequestParam Annotation
• Implementing @PathVariable in a Real-world Scenario
• Utilizing @PostMapping, @PutMapping, @DeleteMapping, and ResponseEntity

Domain 2. Multi-Layer Architecture, ORM, and Property API Development

• Implementing the Save Property Endpoint (@PostMapping)
• Service Layer and Dependency Injection: @Autowired, Singleton vs. Prototype
• Understanding Layered Architecture and Database Configurations Across DTAP
• Introduction to Hibernate ORM and JPA Specifications
• How Hibernate Works: Key Concepts and Functionality
• Entity Class Implementation and JPA Annotations
• Persisting Property Data with PropertyRepository
• MVC Architecture in Action
• Converting DTO to Entity Using PropertyConverter
• Returning Saved Entities with ResponseEntity

Domain 3. Property Management: CRUD Operations

• Retrieving All Property Listings (@GetMapping)
• Updating Property Information: Full Update with @PutMapping
• Partial Update: Modifying Price or Description Using @PatchMapping
• Deleting a Property by ID with @DeleteMapping

Domain 4. Configurations and Profile Management

• Introduction to Spring Profiles
• Configuring Different Database Profiles for DTAP Environments
• Validating Profile-Specific Configurations
• Accessing Custom Properties in Java Classes

Domain 5. Version Control with Git and GitHub

• Initializing Git and GitHub for Project Management
• Committing Code Changes and Pushing to GitHub
• Connecting IntelliJ with GitHub for Seamless Integration
• Essential Git Commands Every Developer Should Know

Domain 6. User Authentication and Code Quality Assurance

• Understanding User Registration and Authentication Flow
• Implementing UserEntity and UserRepository
• Creating UserService and DTOs
• Developing and Implementing UserService Logic
• Designing User Conversion Layer
• Completing User Registration Workflow
• Testing User Registration API
• Exploring @JsonIgnore and @JsonInclude Annotations
• Code Quality Assurance with Sonar Analysis
• JPQL and @FindBy Queries for Efficient Data Retrieval
• Developing Login API and Integrating with Business Logic
• Verifying User Login Functionality

Domain 7. Advanced Error Handling and Aspect-Oriented Programming (AOP)

• Overview of Aspect-Oriented Programming (AOP)
• Designing a Standardized Error Response Model
• Implementing Custom Exception Handling
• Using AOP to Manage Exception Handling Efficiently
• Handling Invalid Login Attempts with Custom Exceptions
• Testing Error Scenarios for Invalid Logins
• Preventing Duplicate Registrations Using Email Constraints
• Validating User Registration and Committing Changes
• Field-Level Validation with Annotations
• Implementing Custom Validation Handlers
• Enforcing Validation Rules Using @Valid Annotation

Domain 8. Effective Logging and Code Review Process

• Understanding Log Levels and Logging Mechanisms
• Configuring Logback XML for Structured Logging
• Testing Logging Across Different Environments
• Submitting Pull Requests for Code Review

Domain 9. API Documentation with Swagger

• Importance of API Documentation with Swagger
• Setting Up Swagger for API Documentation
• Understanding Swagger JSON for Consumer Interaction
• Navigating Swagger UI and API Endpoints
• Enhancing Documentation with Additional Annotations
• Specifying Content Type with Produces and Consumes

Domain 10. Application Monitoring and Performance Insights

• Monitoring Application Health with Spring Boot Actuator
• Enabling Web and JMX Endpoints for System Monitoring

Domain 11. Entity Relationships in JPA

• Introduction to Entity Relationships in Spring Data JPA
• Implementing Many-to-One Relationship in Property Entity
• Retrieving and Associating User Data with Property Entities
• Persisting Multiple Properties for a Single User
• Updating Controllers, Services, and Repositories for Relationship Handling
• Testing One-to-Many Property Retrieval for Users
• Comparing FetchType.EAGER vs. FetchType.LAZY
• Implementing One-to-One Relationships in JPA
• Enhancing Repository, DTO, and Service Logic for Address Management
• Validating One-to-One Relationship Data

Domain 12. Migrating to Spring Boot 3

• Understanding the Benefits of Upgrading to Spring Boot 3
• Transitioning from Java 8 to Java 17
• Updating Maven (pom.xml) for Spring Boot 3 and Replacing javax Imports
• Migrating from Swagger 2 to Springdoc-OpenAPI
• Resolving Logback and SLF4J Issues in Spring Boot 3
• Adapting MySQL Configuration for Spring Boot 3
• Enhancing Actuator for Monitoring

Domain 13. Optimizing Database Queries with Spring Data JPA

• Crafting Efficient @FindBy Queries
• Using @FindBy with @Contains and @OrderBy for Sorted Results
• Executing @FindAllBy Queries Across Multiple Entities
• Structuring @FindBy Queries with Multiple Attributes and Operators
• Implementing Pagination in Spring Data JPA for Large Data Sets
• Exploring countBy, existsBy, and deleteBy Queries