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AWS Certified Solutions Architect study material · question 467 of 500

How does connection pooling in RDS Proxy help the database?

  1. It shards writes across several instances
  2. It spares the memory and CPU cost of opening a new connection per request
  3. It caches query results in memory
  4. It compresses the data returned to clients
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Answer: B. It spares the memory and CPU cost of opening a new connection per request

Reusing pooled connections avoids the overhead the database would otherwise spend establishing a fresh connection each time.

Source: Amazon RDS Proxy (Amazon Web Services) — Amazon RDS Proxy

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