SAA-C03 Question 81
Single answerA company is required to retain its customer transaction data for 7 years due to compliance regulations. The data must be easily accessible for the first year and then archived for cost efficiency, but it should still be retrievable within a few hours if needed. How should the company design its data retention strategy using AWS services?
- A
Store the data in Amazon S3 Standard for the first year, then transition it to S3 Glacier Deep Archive after one year using an S3 Lifecycle policy.
- B
Store the data in Amazon S3 Standard for the first year, then transition it to S3 Intelligent-Tiering after one year.
- C
Store the data in Amazon S3 Standard for the first year, then transition it to S3 Glacier Flexible Retrieval after one year using an S3 Lifecycle policy.
- D
Store the data in Amazon S3 Standard for the first year, then transition it to Amazon EBS snapshots after one year.
Show answer and explanation
Correct answer: C
Explanation
To meet the company's data retention requirements, Amazon S3 Standard can be used for the first year to ensure easy accessibility. After the first year, transitioning to S3 Glacier Flexible Retrieval using an S3 Lifecycle policy is the optimal solution as it balances cost-efficiency and retrieval times in hours, fulfilling both compliance and business needs. Other options either fail to meet the retrieval time requirement or are not cost-effective for long-term storage.
- A. Incorrect.
This option uses S3 Glacier Deep Archive, which is the lowest-cost storage class, but it takes up to 12 hours to retrieve data. Since the requirement specifies retrieval within a few hours, this does not meet the requirements.
- B. Incorrect.
S3 Intelligent-Tiering is designed to optimize costs for data with unknown or changing access patterns, but it is not the most cost-effective solution for long-term archiving after the first year. Additionally, this does not provide a clear archiving strategy.
- C. Correct.
This option is correct because S3 Glacier Flexible Retrieval is optimized for long-term data archiving with retrieval times in hours, meeting the requirement for cost efficiency and access within a few hours. The use of an S3 Lifecycle policy automates the transition after the first year.
- D. Incorrect.
Amazon EBS snapshots are not suitable for long-term data archiving due to their higher cost compared to S3-based storage classes. This option does not align with the company's cost-efficiency requirement.