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What does the cluster module do?

  1. A Creates a database cluster
  2. B Forks multiple worker processes that share the same server port
  3. C Groups related modules together
  4. D Clusters log output
Answer

Forks multiple worker processes that share the same server port

Cluster lets a Node application use multiple CPU cores. Workers share nothing, so sessions and caches must move to Redis or a database.

All NodeJS MCQs

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