A customer owns a simple API for their website that receives about 1,000 requests each day and has an average response time of 50 ms. It is currently hosted on one c4.large instance.
Which changes to the architecture will provide high availability at the LOWEST cost?
A. Create an Auto Scaling group with a minimum of one instance and a maximum of two instances, then use an Application Load Balancer to balance the traffic.
B. Recreate the API using Amazon API Gateway and use AWS Lambda as the service backend.
C. Create an Auto Scaling group with a maximum of two instances, then use an Application Load Balancer to balance the traffic.
D. Recreate the API using Amazon API Gateway and integrate the new API with the existing backend service.
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Correct Answer is B
The question has 2 hints. API (so use API gateway) and the average response time is 50s (so use Lambda because it has a max response of 15 minutes). It even has another wrong answer similar to B to throw you off