A startup is building a new application with an unpredictable workload. The database will experience periods of high activity followed by days of zero activity. They need a relational database that minimizes costs during idle periods. Which service should they choose?

Answer options:

Amazon RDS for MySQL

Amazon DynamoDB On-Demand

Amazon Aurora Serverless

Amazon Redshift Serverless

How to approach this question

Match 'relational database', 'unpredictable workload', and 'zero activity' to Aurora Serverless.

Full Answer

C.Amazon Aurora Serverless✓ Correct

Amazon Aurora Serverless is an on-demand, auto-scaling configuration for Amazon Aurora. It automatically starts up, shuts down, and scales capacity up or down based on your application's needs, making it highly cost-effective for intermittent workloads.

Common mistakes

Choosing DynamoDB, missing the 'relational database' requirement.

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