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What is the main purpose of using the worker pool pattern in Node.js?

easy📝 Conceptual Q11 of 15
Node.js - Worker Threads
What is the main purpose of using the worker pool pattern in Node.js?
ATo increase the memory usage by creating many workers
BTo avoid using any background threads or workers
CTo slow down the program by running tasks one after another
DTo run multiple tasks concurrently using a fixed number of workers
Step-by-Step Solution
Solution:

  1. Step 1: Understand the worker pool pattern concept

    The worker pool pattern uses a limited number of workers to handle many tasks efficiently without creating too many threads.

  2. Step 2: Identify the main goal in Node.js context

    It allows running tasks concurrently but limits the number of workers to keep resource use balanced and improve speed.

  3. Final Answer:

    To run multiple tasks concurrently using a fixed number of workers -> Option D

  4. Quick Check:

    Worker pool = fixed workers + concurrent tasks [OK]
Quick Trick: Worker pool means fixed workers handle many tasks concurrently [OK]
Common Mistakes:
  • Thinking worker pool creates unlimited workers
  • Believing it slows down the program
  • Confusing it with single-threaded execution

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