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Node.js Backend Architect Certification Exam
Validate your enterprise JavaScript runtime and backend engineering mastery
Validate your knowledge across non-blocking I/O, Express RESTful design, stream processing, security, and clustering to claim your official Codexia Node.js Developer Certificate.
Key Architectural Concepts Covered
Event-driven loop: Microtasks (process.nextTick, Promises) vs Macrotasks (setTimeout, I/O, setImmediate).
Stream pipelines: High-throughput, memory-bounded processing of disk and network data streams.
Express security: Helmet security headers, CORS origins, rate limiting, and centralized error middleware.
Production lifecycle: Process managers like PM2, Docker containerization, health checks, and clustering.
Achieve 100% on this exercise to unlock your downloadable, verified Codexia Node.js Certificate.
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Test Yourself With Exercise
Which process manager is widely used in production to keep Node.js applications alive, auto-restart on crashes, and manage cluster instances?