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A company is deploying a new two-tier web application in AWS. The company has limited staff and requires
high availability, and the application requires complex queries and table joins. Which configuration provides
the solution for the company’s requirements?

A.
MySQL Installed on two Amazon EC2 Instances in a single Availability Zone

B.
Amazon RDS for MySQL with Multi-AZ

C.
Amazon ElastiCache

D.
Amazon DynamoDB

Explanation:

http://www.allthingsdistributed.com/2013/03/dynamodb-one-year-later.html

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