Backend Development with Node Js, SQL Practice Exam

Backend Development with Node.js and SQL involves using Node.js, a JavaScript runtime, to build the server-side logic of web applications and SQL (Structured Query Language) to interact with relational databases. Node.js allows developers to use JavaScript both on the frontend and backend, providing a unified language for web development. With Node.js, developers can create scalable and efficient server-side applications using event-driven, non-blocking I/O model. SQL is used to manage and query relational databases, such as MySQL, PostgreSQL, or SQLite, allowing developers to store, retrieve, and manipulate data within their applications. Together, Node.js and SQL enable developers to build robust and performant backend systems for web applications.

Why is Backend Development with Node Js, SQL important?

• Unified Language: Using JavaScript for both frontend and backend development streamlines development and reduces the need to context switch between languages.
• Scalability: Node.js's event-driven, non-blocking I/O model allows for scalable backend development, handling multiple connections efficiently.
• Rich Ecosystem: Node.js has a vast ecosystem of libraries and frameworks, such as Express.js, that simplify backend development tasks.
• SQL Database Support: SQL databases provide robust data storage solutions with ACID properties, suitable for many applications' data management needs.
• Compatibility: Node.js and SQL databases are compatible with various operating systems and can be deployed on diverse hosting platforms.
• Community Support: Both Node.js and SQL databases have active and supportive communities, offering resources and solutions for common development challenges.
  

Who should take the Backend Development with Node Js, SQL Exam?

• Backend Developers
• Full Stack Developers
• Database Administrators
• Web Developers
• Software Engineers
• System Administrators
• DevOps Engineers
• Technical Leads/Managers

Skills Evaluated

The candidate taking the certification exam on Backend Development with Node.js and SQL is typically evaluated for the following skills:

• Node.js Fundamentals
• Backend Development
• SQL Database Management
• Database Integration
• Error Handling
• Security Practices
• Performance Optimization
• Testing and Debugging
• Deployment and DevOps
• Code Maintenance
  

Backend Development with Node Js, SQL Certification Course Outline

1. Node.js Fundamentals

   • Event-driven architecture
   • Modules and npm
   • Asynchronous programming

2. Backend Development with Node.js

   • HTTP server creation
   • Routing and middleware usage
   • Error handling

3. SQL Database Management

   • Relational database concepts
   • SQL syntax and queries
   • Data manipulation and transactions

4. Database Integration

   • Connecting Node.js to SQL databases
   • Executing SQL queries from Node.js
   • ORM (Object-Relational Mapping) libraries

5. Security in Node.js and SQL

   • Authentication and authorization
   • Data validation and sanitization
   • Secure coding practices

6. RESTful API Development

   • Designing RESTful APIs
   • Implementing CRUD operations
   • Using Express.js for API development

7. Testing and Debugging

   • Unit testing with Jest or Mocha
   • Debugging Node.js applications
   • Integration testing

8. Performance Optimization

   • Caching strategies
   • Load balancing
   • Profiling and optimizing code

9. Deployment and DevOps

   • Deployment strategies for Node.js applications
   • Continuous integration and deployment (CI/CD)
   • Monitoring and logging

10. Error Handling and Logging

    • Managing errors in Node.js
    • Logging best practices
    • Error reporting and monitoring

11. Authentication and Authorization

    • Implementing user authentication
    • Role-based access control (RBAC)
    • JWT (JSON Web Tokens) implementation

12. Websockets and Real-time Communication

    • Using Websockets for real-time communication
    • Implementing chat applications
    • Broadcasting messages

13. Data Modeling and Schema Design

    • Designing database schemas
    • Normalization and denormalization
    • Modeling relationships

14. Advanced SQL Concepts

    • Indexing and optimization
    • Stored procedures and triggers
    • Full-text search

15. Microservices Architecture

    • Designing microservices with Node.js
    • Communication between microservices
    • Containerization with Docker

16. Scaling Node.js Applications

    • Horizontal and vertical scaling
    • Load balancing strategies
    • Database sharding

17. Version Control and Collaboration

    • Using Git for version control
    • Collaborating with other developers
    • Branching and merging strategies

18. Code Quality and Best Practices

    • Code formatting and style
    • Code reviews
    • Design patterns for Node.js

19. Serverless Computing

    • Understanding serverless architecture
    • Deploying Node.js applications to serverless platforms
    • Benefits and challenges of serverless computing