AWS Certified Cloud Practitioner — Question 614

A company wants to store data with high availability, encrypt the data at rest, and have direct access to the data over the internet.

Which AWS service will meet these requirements MOST cost-effectively?

Answer options

• A. Amazon Elastic Block Store (Amazon EBS)
• B. Amazon S3
• C. Amazon Elastic File System (Amazon EFS)
• D. AWS Storage Gateway

Correct answer: B

Explanation

Amazon S3 offers highly available, durable object storage with built-in encryption at rest and direct internet accessibility via public endpoints, making it the most cost-effective choice. In contrast, Amazon EBS and Amazon EFS are file and block storage services that require attached compute instances to expose data to the internet, leading to higher costs. AWS Storage Gateway is primarily designed for hybrid cloud storage and is unnecessary for direct internet access.