Correct Answer : 100 buckets
Explanation : By default, customers can provision up to 100 buckets per AWS account. However, you can increase your Amazon S3 bucket limit by visiting AWS Service Limits.
Correct Answer : SimpleDB
Explanation : Use SimpleDB for the lowest administrative overhead.
Correct Answer : MySQL
Explanation : The purpose of RDS is to allow database applications that already exist to be ported to RDS and placed in an environment that is relatively automated and easy to use.
Correct Answer : CDN
Explanation : Amazon CloudFront is referred to as a content delivery network (CDN), and sometimes called edge computing.