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How can you combine Django signals with background tasks to improve performance?

hard📝 Conceptual Q9 of 15
Django - Celery and Background Tasks
How can you combine Django signals with background tasks to improve performance?
AUse signals only for database migrations
BTrigger background tasks inside signal handlers for slow operations
CDisable signals and use only background tasks
DRun all signal handlers synchronously to avoid delays
Step-by-Step Solution
Solution:
  1. Step 1: Understand signals and background tasks roles

    Signals detect events like model saves; background tasks handle slow jobs.
  2. Step 2: Combine for efficiency

    Triggering background tasks inside signals lets slow work run async without blocking main flow.
  3. Final Answer:

    Trigger background tasks inside signal handlers for slow operations -> Option B
  4. Quick Check:

    Signals + background tasks improve performance = D [OK]
Quick Trick: Use signals to start background tasks for slow jobs [OK]
Common Mistakes:
MISTAKES
  • Running all signals synchronously
  • Disabling signals entirely
  • Misusing signals for unrelated tasks

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