Which solution will meet these requirements MOST cost-effectively?
Store the data in S3 Standard-Infrequent Access (S3 Standard-IA) for the first 90 days. Set up an S3 Lifecycle rule to move the data to S3 Glacier Flexible Retrieval after 90 days.
Store the data in S3 One Zone-Infrequent Access (S3 One Zone-IA) for the first 90 days. Set up an S3 Lifecycle rule to move the data to S3 Glacier Deep Archive after 90 days.
Store the data in S3 Standard for the first 90 days. Set up an S3 Lifecycle rule to move the data to S3 Glacier Flexible Retrieval after 90 days.
Store the data in S3 Standard for the first 90 days. Set up an S3 Lifecycle rule to move the data to S3 Glacier Deep Archive after 90 days.
Explanations:
S3 Standard-IA is suitable for infrequently accessed data and ensures high availability for the first 90 days. After 90 days, S3 Glacier Flexible Retrieval provides lower-cost long-term storage with retrieval times of less than 5 hours, meeting the requirements.
S3 One Zone-IA is cheaper than S3 Standard-IA but stores data in a single availability zone, which risks data durability in case of a failure. S3 Glacier Deep Archive has retrieval times that exceed 5 hours, so it does not meet the 5-hour retrieval requirement.
S3 Standard is not cost-effective for infrequent access and does not meet the need for lower cost after 90 days. Glacier Flexible Retrieval is suitable for long-term storage, but storing data in S3 Standard initially is too expensive.
While Glacier Deep Archive is cost-effective for long-term storage, it has retrieval times that exceed 5 hours, which violates the requirement for retrieval time of less than 5 hours after 90 days. S3 Standard is also not cost-effective for the first 90 days.
I structure that the answer is:
Store the data in S3 Standard-Infrequent Access (S3 Standard-IA) for the first 90 days. Set up an S3 Lifecycle rule to move the data to S3 Glacier Flexible Retrieval after 90 days.