What is the difference between a cluster aware client and a regular client when connecting to a Redis Cluster?

A cluster aware client understands the cluster's hash slot mapping and automatically routes each command directly to the correct node responsible for that key, while a regular client would need to manually handle MOVED and ASK redirects itself, making a cluster aware client essential for building an application that works correctly and efficiently against a Redis Cluster.

// A cluster aware client automatically routes commands
const Redis = require('ioredis');
const cluster = new Redis.Cluster([{ host: 'node1', port: 6379 }]);