This SAA-C03 practice question tests your understanding of design high-performing architectures. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: rDS Proxy pools and reuses database connections.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A mobile game backend uses Amazon Aurora. The workload has many short-lived database connections from Lambda functions, causing connection storms. What should be added? The architecture review board prefers a managed AWS-native control.
An internet gateway
Why wrong: An internet gateway does not manage database connections.
S3 Select
Why wrong: S3 Select queries object content and is unrelated to database connection pooling.
RDS Proxy
RDS Proxy pools and manages database connections, improving scalability for serverless and bursty workloads.
A larger Route 53 hosted zone
Why wrong: DNS hosted zones do not solve connection storms.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
RDS Proxy
RDS Proxy is a fully managed, AWS-native service that sits between Lambda functions and Aurora, pooling and reusing database connections. This prevents connection storms by reducing the overhead of establishing new connections for each short-lived Lambda invocation, and it also improves scalability and resilience by handling failover transparently.
Key principle: RDS Proxy pools and reuses database connections.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
An internet gateway
Why it's wrong here
An internet gateway does not manage database connections.
S3 Select
Why it's wrong here
S3 Select queries object content and is unrelated to database connection pooling.
RDS Proxy
Why this is correct
RDS Proxy pools and manages database connections, improving scalability for serverless and bursty workloads.
Related concept
RDS Proxy pools and reuses database connections.
A larger Route 53 hosted zone
Why it's wrong here
DNS hosted zones do not solve connection storms.
Common exam traps
The trap here is that candidates might confuse network-level components (like an internet gateway) or data retrieval services (like S3 Select) with database connection management, overlooking the purpose-built RDS Proxy service for handling short-lived, high-frequency connections from serverless workloads.
Detailed technical explanation
RDS Proxy maintains a warm pool of connections to the Aurora database and multiplexes them across multiple Lambda invocations, significantly reducing the number of new connections and the associated memory/CPU overhead. It also supports IAM authentication for Lambda functions, eliminating the need to store database credentials in the function code. In a real-world scenario, a game backend with thousands of concurrent players triggering Lambda functions can overwhelm the database with connection requests; RDS Proxy absorbs this burst and ensures the database remains stable.
Key takeaway
RDS Proxy pools and reuses database connections.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Review rDS Proxy pools and reuses database connections., then practise related SAA-C03 questions on the same topic to reinforce the concept.
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FAQ
Design High-Performing Architectures — This question tests Design High-Performing Architectures — RDS Proxy pools and reuses database connections..
The correct answer is: RDS Proxy — RDS Proxy is a fully managed, AWS-native service that sits between Lambda functions and Aurora, pooling and reusing database connections. This prevents connection storms by reducing the overhead of establishing new connections for each short-lived Lambda invocation, and it also improves scalability and resilience by handling failover transparently.
Review rDS Proxy pools and reuses database connections., then practise related SAA-C03 questions on the same topic to reinforce the concept.
RDS Proxy pools and reuses database connections.
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Last reviewed: Jun 11, 2026
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