Bird
0
0

What advantage does spawning a worker process for each CPU core provide in a Node.js cluster?

easy📝 Conceptual Q1 of 15
Node.js - Cluster Module
What advantage does spawning a worker process for each CPU core provide in a Node.js cluster?
AIt reduces memory usage by sharing the same event loop
BIt maximizes CPU utilization by parallelizing workload across cores
CIt ensures only one worker handles all incoming requests
DIt prevents any worker from crashing the entire application
Step-by-Step Solution
Solution:

  1. Step 1: Understand Node.js single-threaded nature

    Node.js runs JavaScript on a single thread, limiting CPU core usage.

  2. Step 2: Forking workers per CPU core

    Forking creates multiple processes, each running on a separate core, enabling parallelism.

  3. Final Answer:

    It maximizes CPU utilization by parallelizing workload across cores -> Option B

  4. Quick Check:

    More workers equal better CPU usage [OK]
Quick Trick: One worker per core uses all CPU power [OK]
Common Mistakes:
  • Thinking workers share the same event loop
  • Assuming one worker handles all requests
  • Believing forking prevents crashes entirely

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Node.js Quizzes
Cluster Module - Cluster vs reverse proxy decision - Quiz 12easy Debugging and Profiling - Common memory leak patterns - Quiz 4medium Debugging and Profiling - Common memory leak patterns - Quiz 2easy Debugging and Profiling - CPU profiling basics - Quiz 13medium Error Handling Patterns - Error-first callback convention - Quiz 15hard Error Handling Patterns - Graceful shutdown on errors - Quiz 1easy Timers and Scheduling - AbortController for cancellation - Quiz 14medium Timers and Scheduling - setImmediate vs process.nextTick - Quiz 1easy URL and Query String Handling - Why URL parsing matters - Quiz 12easy Worker Threads - Why worker threads matter - Quiz 8hard