Node.js · Clustering · Junior · Comparison
cluster vs PM2 vs Kubernetes replicas — how do you choose?
Short Interview Answer
cluster/PM2 for process management on a VM; K8s for orchestration across nodes — prefer platform primitives in cloud-native setups.
Detailed Explanation
Don't double-cluster mindlessly (PM2 cluster inside K8s pods). One process per container is a common best practice.