Node Js Interview Questions For 3 Years Experience
Intermediate Node.js Interview Questions for Candidates with 3+ Years of Experience
Node Js Interview Questions For 3 Years Experience
Interview questions for Node.js developers with 3 years of experience focus on assessing their in-depth knowledge and understanding of the technology. These questions delve into advanced concepts such as cluster management, performance optimization, scalability techniques, and best practices for production environments. By asking specific questions about these areas, interviewers can evaluate the candidate's ability to design, implement, and maintain robust Node.js applications in real-world scenarios.
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1 - Event Loop and Call Stack:
Explain the event loop and call stack in Node.js.
How do they work together to manage asynchronous events?
2) Observables (RxJS):
What is RxJS and describe its benefits in Node.js development.
Provide examples of how to use Observables to handle asynchronous data streams.
3) Node.js Security:
Describe the common security vulnerabilities in Node.js applications.
How can these vulnerabilities be mitigated to ensure application security?
4) MongoDB/Relational Databases:
Explain the differences between MongoDB and relational databases.
When and why would you choose one over the other in Node.js projects?
5) HTTP/HTTPS Servers:
Implement a simple HTTP server using Express.js.
Describe the key differences between HTTP and HTTPS servers.
6) Error Handling:
Explain the principles of error handling in Node.js.
What are some best practices for logging and managing errors effectively?
7) Performance Optimization:
Identify common performance bottlenecks in Node.js applications.
Discuss techniques for optimizing performance, such as caching and asynchronous programming.
8) ORM (Sequelize):
Describe the benefits of using an ORM (e.g., Sequelize) in Node.js.
Explain how to use Sequelize to interact with a database and perform CRUD operations.
9) Dependency Management (npm, Yarn):
Explain the role of npm and Yarn in Node.js development.
How do they differ and which one would you recommend for managing dependencies?
10) Testing (Jest, Mocha):
Describe the importance of testing in Node.js.
Explain the features and benefits of using testing frameworks like Jest or Mocha.
11 - Deployment:
Discuss different approaches for deploying Node.js applications in production.
Explain the benefits and considerations for each approach.
12) Microservices:
Describe the concept of microservices architecture in Node.js.
Explain the advantages and challenges of using microservices in Node.js applications.
13) AWS Services:
List some of the common AWS services used with Node.js applications.
Describe the benefits and use cases for each service.
14) GraphQL:
Explain the benefits of using GraphQL in Node.js applications.
How does GraphQL differ from RESTful APIs and how can it improve API development?
15) Future of Node.js:
Discuss the latest trends and advancements in Node.js development.
Explain how Node.js is evolving and what new features and capabilities are being introduced.
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- Course Overview
- Master the essentials of Node.js for experienced candidates seeking roles with 3+ years of experience. This comprehensive course covers core concepts, advanced topics, and real-world interview questions to prepare you for the technical challenges you'll face in your next interview.
- Course Description
- Master the essential Node.js concepts and techniques required for successful interviews with 3+ years of experience. Learn about Node.js fundamentals, advanced features, performance optimization, and common interview questions.
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- 7) Tool Integration: Teaches how to integrate testing tools into the software development lifecycle for streamlined workflows.
- 8) Project-Based Learning: Focuses on project-based learning to build practical skills and create a portfolio of completed tasks.
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Benefits of taking our course
Functional Tools
Tools Used in Course:
- Node.js: A JavaScript runtime environment used to build scalable and efficient server side applications.
- 2. Express.js: A popular Node.js web framework for creating RESTful APIs and web applications.
- 3. MongoDB: A document oriented NoSQL database used for storing and managing data in a flexible and scalable manner.
- 4. SQL: A structured query language used to interact with relational databases.
- 5. JavaScript: A versatile programming language used for both front end and back end development.
- Training Program for Students:
- Duration: 3 months
- Objective:* To equip students with the necessary skills and knowledge in Node.js, Express.js, MongoDB, SQL, and JavaScript for entry level software development roles.
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- * Hands on workshops and practical exercises
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- * In depth understanding of Node.js and related technologies
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