Q9 — AWS SAA-C03 Ch.13

Question 9 of 100 | ← Chapter 13

Q909. A company needs to optimize its Amazon S3 storage costs for an application that generates many files that cannot be recreated. Each file is approximately 5 MB and is stored in Amazon S3 Standard storage.The company must store the files for 4 years before the files can be deleted. The files must be immediately accessible. The files are frequently accessed in the first 30 days of object creation, but they are rarely accessed after the first 30 days.Which solution will meet these requirements MOST cost-effectively?

Correct Answer: C. Create an S3 Lifecycle policy to move the files to S3 Standard-Infrequent Access (S3 Standard-IA) 30 days after object creation. Delete the files 4 years after object creation.

Explanation

A. S3 Glacier Instant Retrieval is not the most cost-effective solution for this use case, as the files need to be immediately accessible. Glacier Instant Retrieval has higher retrieval costs compared to S3 Standard-IA. B. S3 One Zone-IA is not the most cost-effective option, as it has higher storage costs compared to S3 Standard-IA. C. This is the correct answer. S3 Standard-IA is the most cost-effective option for this use case, as it provides immediate access to the files and has lower storage costs compared to S3 Standard storage. The files are rarely accessed after the first 30 days, so S3 Standard-IA is a suitable option. D. Moving the files to S3 Glacier Flexible Retrieval after 4 years is not necessary, as the files can be deleted after 4 years. S3 Glacier Flexible Retrieval has higher retrieval costs compared to deleting the files. The key considerations for this use case are: 1. Immediate accessibility: The files need to be immediately accessible, so S3 Glacier is not a suitable option.2. Frequent access in the first 30 days: The files are frequently accessed in the first 30 days, so S3 Standard or S3 Standard-IA are better options compared to S3 Glacier Instant Retrieval.3. Rare access after the first 30 days: The files are rarely accessed after the first 30 days, so S3 Standard-IA is the most cost-effective option.4. Storage duration: The files need to be stored for 4 years, so deleting the files after 4 years is the most appropriate action. Therefore, the most cost-effective solution is to create an S3 Lifecycle policy to move the files to S3 Standard-Infrequent Access (S3 Standard-IA) 30 days after object creation, and then delete the files 4 years after object creation.