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In FastAPI applications using SQLAlchemy, what is the key advantage of implementing connection pooling?

easy🧠 Conceptual Q1 of 15
FastAPI - Database Integration
In FastAPI applications using SQLAlchemy, what is the key advantage of implementing connection pooling?
AIt automatically caches query results to speed up responses
BIt reduces the overhead of establishing new database connections for each request
CIt encrypts database connections for enhanced security
DIt limits the number of concurrent API requests to the server
Step-by-Step Solution
Solution:

  1. Step 1: Understand connection pooling

    Connection pooling maintains a pool of open database connections.

  2. Step 2: Benefit in FastAPI

    Reusing existing connections avoids the overhead of creating new connections for every request.

  3. Final Answer:

    It reduces the overhead of establishing new database connections for each request -> Option B

  4. Quick Check:

    Connection reuse improves performance [OK]
Quick Trick: Connection pooling reuses DB connections to save time [OK]
Common Mistakes:
MISTAKES
  • Confusing connection pooling with query caching
  • Assuming it limits API request concurrency
  • Thinking it encrypts connections automatically

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