Express.js
/Beginner
Advanced Questions
Definition
Advanced interviews focus on performance, security, and complex architectural patterns. ### Sample Questions 1. **How would you scale an Express application to handle millions of requests?** 2. **Explain how JWT authentication works statelessly.** 3. **What is Dependency Injection and how do you implement it in Express?** 4. **How do you prevent XSS and CSRF attacks in an Express API?** 5. **Explain the Node.js Event Loop and how blocking it affects an Express server.**
Explain Like I'm New
Advanced interviews focus on performance, security, and complex architectural patterns. ### Sample Questions 1.
Terminal Output
bash / terminal
# Example Answer for #1:
Scaling involves vertically scaling the server, utilizing Node Cluster mode to fork processes across all CPU cores, horizontally scaling across multiple servers using a Load Balancer like Nginx, implementing Redis caching for heavy queries, and utilizing a CDN for static assets.
Interview Questions
basic
- What is the primary purpose of Advanced Questions in Express.js?
- How do you initialize Advanced Questions?
intermediate
- How does Advanced Questions integrate with other middleware components?
- Can you explain a common use case for Advanced Questions?
advanced
- What are the performance implications of Advanced Questions in a high-traffic production application?
- How would you debug issues related to Advanced Questions?
trick
- Is it possible to achieve the same result as Advanced Questions without using Express?