You need to design an API Gateway + Lambda system that handles high traffic with minimal latency. Which architectural choice improves performance most effectively?

hard📝 Application Q9 of 15

AWS - Serverless Architecture

ADisable caching in API Gateway and use Lambda on-demand scaling

BUse edge-optimized API Gateway endpoints without Lambda provisioned concurrency

CEnable Lambda provisioned concurrency and use regional API Gateway endpoints

DUse synchronous Lambda invocation with global API Gateway caching disabled

Step-by-Step Solution

Solution:

Step 1: Understand cold start impact on Lambda latency
Cold starts cause delays; provisioned concurrency keeps Lambdas warm to reduce latency.
Step 2: Choose API Gateway endpoint type for regional performance
Regional endpoints reduce latency for specific regions compared to edge-optimized.
Final Answer:
Enable Lambda provisioned concurrency and use regional API Gateway endpoints -> Option C
Quick Check:
Provisioned concurrency + regional endpoints = best latency [OK]

Quick Trick: Provisioned concurrency reduces cold start latency [OK]

Common Mistakes:

Relying only on edge-optimized endpoints
Disabling caching unnecessarily
Ignoring cold start delays

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More AWS Quizzes

You need to design an API Gateway + Lambda system that handles high traffic with minimal latency. Which architectural choice improves performance most effectively?

Step 1: Understand cold start impact on Lambda latency

Step 2: Choose API Gateway endpoint type for regional performance

Final Answer:

Quick Check:

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