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Which statement best describes the difference between worker threads and child processes in Node.js?

easy📝 Conceptual Q11 of 15
Node.js - Worker Threads
Which statement best describes the difference between worker threads and child processes in Node.js?
AWorker threads run in the same process sharing memory, while child processes run in separate processes with separate memory.
BWorker threads run separate programs, child processes share the same memory space.
CBoth worker threads and child processes run in the same process and share memory.
DChild processes run inside worker threads to improve performance.
Step-by-Step Solution
Solution:

  1. Step 1: Understand worker threads behavior

    Worker threads run JavaScript code in parallel but inside the same Node.js process and share memory.

  2. Step 2: Understand child processes behavior

    Child processes run completely separate programs with their own memory space and communicate via messages.

  3. Final Answer:

    Worker threads run in the same process sharing memory, while child processes run in separate processes with separate memory. -> Option A

  4. Quick Check:

    Worker threads share memory, child processes do not [OK]
Quick Trick: Remember: threads share memory, processes do not [OK]
Common Mistakes:
  • Confusing memory sharing between threads and processes
  • Thinking child processes share memory
  • Assuming worker threads run separate programs

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