Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 918 discussion

Correct during the first year (online period). Incorrect during years 2-8 (archive period). Go check the numbers in price calculator yourself with the following scenarios for the archive period (S3 Glacier Deep Archive): * For small files: 100,000,000 files of 10KB (1000GB aprox). Considering both, the transition cost of 100,000,000 files to the Glacier Deep Archive class and the maintenance cost of 7 years for those 100,000,000 files: $6,940,34 * For big files: 1000 files of 1000MB (1000GB aprox). Considering both, the transition cost of 1,000 files to the Glacier Deep Archive class and the maintenance cost of 7 years for those 1,000 files: $83,23

Amazon S3 Glacier Instant Retrieval is an archive storage class that delivers the lowest-cost storage for long-lived data that is rarely accessed and requires retrieval in milliseconds. With Amazon S3 Glacier Instant Retrieval, you can save up to 68% on storage costs compared to using the S3 Standard-Infrequent Access (S3 Standard-IA) storage class, when your data is accessed once per quarter." After the one year move it to S3 Glacier Deep archive.

Correct, but they mention that the files must be "immediately available" during the first year. So any option involving archive tools should be discarded for this period, due to the extra steps needed to accessing the files: figuring out which archive contains the file you are looking for, download the archive file and extract the desired file. I think this simple requirement explains the almost 50%-50% consensus for this particular question.

Note The S3 Standard-IA and S3 One Zone-IA storage classes are suitable for objects larger than 128 KB that you plan to store for at least 30 days. If an object is less than 128 KB, Amazon S3 charges you for 128 KB. If you delete an object before the end of the 30-day minimum storage duration period, you are charged for 30 days. Objects that are deleted, overwritten, or transitioned to a different storage class before 30 days will incur the normal storage usage charge plus a pro-rated charge for the remainder of the 30-day minimum. For pricing information, see Amazon S3 pricing. https://docs.aws.amazon.com/AmazonS3/latest/userguide/storage-class-intro.html

I believe Standard-IA remains the most straightforward and cost-effective choice for small files (10 KB average) that are accessed 1~2 times in the first year without aggregation.

sorry, choose D

Wrong, it says 1-2 times in the first year and Amazon states that s3 glacier isn’t at retrieval can save up to 68% compared to s3 infrequent access.

My intance of chatgpt says it is D