SAA-C03 Question 80
Single answerA company must retain sensitive customer data for 7 years to comply with regulatory requirements. The data should be highly durable, encrypted, and infrequently accessed after the first 30 days. Which solution should the company implement to meet these requirements in a cost-effective manner?
- A
Store the data in an Amazon S3 bucket with the S3 Glacier Deep Archive storage class, using a lifecycle policy to transition the data after 30 days.
- B
Store the data in an Amazon S3 bucket with the S3 Standard-Infrequent Access (S3 Standard-IA) storage class, using a lifecycle policy to transition the data after 30 days.
- C
Store the data in an Amazon S3 bucket with the S3 Intelligent-Tiering storage class and enable encryption using an AWS Key Management Service (AWS KMS) key.
- D
Store the data in Amazon EBS volumes and take regular snapshots for long-term retention.
Show answer and explanation
Correct answer: A
Explanation
The company needs a solution that balances cost-effectiveness, durability, encryption, and compliance with a 7-year retention policy. Amazon S3 Glacier Deep Archive is the ideal storage class for long-term retention of infrequently accessed data due to its low cost and high durability. By using a lifecycle policy, the company can transition the data from the default S3 storage class to Glacier Deep Archive after the initial 30-day period of higher access frequency, reducing costs while meeting regulatory and security requirements.
- A. Correct.
This option is correct because S3 Glacier Deep Archive is the most cost-effective storage option for infrequently accessed data that needs to be retained long-term. Using a lifecycle policy to transition the data after 30 days ensures cost optimization. S3 also provides high durability and encryption options.
- B. Incorrect.
This option is incorrect because S3 Standard-IA is more expensive than S3 Glacier Deep Archive for long-term storage of infrequently accessed data. While it offers high durability and encryption, it is not the most cost-effective solution for this scenario.
- C. Incorrect.
This option is incorrect because S3 Intelligent-Tiering is designed for data with unpredictable access patterns. It is not optimal for data that is known to be infrequently accessed after a certain period, and it is more expensive than S3 Glacier Deep Archive for long-term retention.
- D. Incorrect.
This option is incorrect because Amazon EBS is designed for block storage and not optimized for long-term, infrequently accessed data. It is significantly more expensive compared to Amazon S3 Glacier Deep Archive for this use case.