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

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

B as these files will be stored indefinitely after 1 month

Files are accessed frequently for 1 month = S3 Standard. Files are not accessed after 1 month and must be kept indefinitely at low costs = S3 Glacier Deep Archive. No requirement for low Ops but S3 Lifecycle to the rescue...whoooosh!

Option B (Create an S3 Lifecycle configuration to transition objects from S3 Standard to S3 Glacier Deep Archive after 1 month) is the most cost-effective storage solution for this specific scenario. It allows you to maintain accessibility for the initial 1 month while achieving significant cost savings in the long term.

Option B is the right answer for this.