Node.js is a JavaScript runtime built on Chrome's V8 engine that allows you to run JavaScript on the server-side, enabling development of scalable network applications.

npm (Node Package Manager) is the default package manager for Node.js, allowing developers to install, manage, and publish JavaScript packages and dependencies.

What is middleware in Express?

Middleware functions in Express are functions that have access to request and response objects, can modify them, end the request-response cycle, or pass control to next middleware.

Node.js Interview Questions

351. How would you optimize Node.js services for multi-region deployments?

352. What consistency problems emerge in globally distributed databases?

353. How do cross-region replication delays affect backend guarantees?

354. How would you design low-latency global APIs with Node.js?

355. What edge-computing strategies complement centralized Node.js systems?

356. How do CDN edge workers integrate with backend Node.js APIs?

357. How would you design resilient failover mechanisms for global Node.js systems?

358. What disaster-recovery strategies are most effective for distributed Node.js platforms?

359. How do Node.js systems behave during partial cloud-provider outages?

360. How would you architect graceful degradation strategies during infrastructure failures?