Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 23 discussion

The storage solution that will meet these requirements most cost-effectively is B: Create an S3 Lifecycle configuration to transition objects from S3 Standard to S3 Glacier Deep Archive after 1 month. Amazon S3 Glacier Deep Archive is a secure, durable, and extremely low-cost Amazon S3 storage class for long-term retention of data that is rarely accessed and for which retrieval times of several hours are acceptable. It is the lowest-cost storage option in Amazon S3, making it a cost-effective choice for storing backup files that are not accessed after 1 month. You can use an S3 Lifecycle configuration to automatically transition objects from S3 Standard to S3 Glacier Deep Archive after 1 month. This will minimize the storage costs for the backup files that are not accessed frequently.

B: Transition to Glacier deep archive for cost efficiency

Use S3 Lifecycle policies to transition data from Standard to Glacier Deep Archive after 1 month — the most cost-effective and durable solution for rarely accessed backups that need to be retained indefinitely.

Amazon S3 Glacier Deep Archive is a secure, durable, and extremely low-cost Amazon S3 storage class for long-term retention of data that is rarely accessed and for which retrieval times of several hours are acceptable. It is the lowest-cost storage option in Amazon S3, making it a cost-effective choice for storing backup files that are not accessed after 1 month.

Definitely B. Files are not accessed after 1 month and need to be kept indefinitely, so Glacier Deep Archive is the best solution.

Glacier archive is most suitable here as the data doesn't needs to be accessed anymore but stored indefinitely.

I think the answer is C. This is because, the files were accessed frequently for the first month, so transitioning to Glacier Deep Archive after 1 month would result in higher retrieval costs for the first month of frequent access, making it a less optimal solution. However, since the files are accessed frequently for the first month and then not accessed after that, transitioning them to S3 Standard-IA after 1 month is the cost-effective choice.

Ans B - Glacier: the files will not be accessed after 1 month; they just need to be retained

Should apply S3 lifecycle to move not accessed file after 1 month to S3 Glacier Deep Archive.

Since the files are not accessed after 1 month but need to be kept indefinitely, transitioning them to S3 Standard-Infrequent Access (S3 Standard-IA) would be the best choice.

not accessed == Galcier -- easy one

A: Possible but expensive CD: One zone so no guarantee of being stored indefinitely. B: S3GDA is cost effective indefinite storage

Answer-B

It's can't be B!! because objects that are archived to S3 Glacier Instant Retrieval and S3 Glacier Flexible Retrieval are charged for a minimum storage duration of 90 days, and S3 Glacier Deep Archive has a minimum storage duration of 180 days.

B because since the files should be kept but never accessed we can put them in Deep Archive

Amazon S3 Glacier Deep Archive is a secure, durable, and extremely low-cost Amazon S3 storage class for long-term retention of data that is rarely accessed and for which retrieval times of several hours are acceptable

Answer is B