Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 153 discussion

Answer D Why Optoin D ? The Question talks about downloads are infrequent older than 90 days which means files less than 90 days are accessed frequently. Standard-Infrequent Access (S3 Standard-IA) needs a minimum 30 days if accessed before, it costs more. So to access the files frequently you need a S3 Standard . After 90 days you can move it to Standard-Infrequent Access (S3 Standard-IA) as its going to be less frequently accessed

B/D seems possible answer. But, I'll go with "B". In the following table, S3 Intelligent-Tiering seems not so expansive than S3 Standard. https://aws.amazon.com/s3/pricing/?nc1=h_ls And, in the question "128KB" size is talking about S3 Intelligent-Tiering stuff.

I am going with D instead of B because Intelligent-Tiering may work against you in this case. The company knows that the files are rarely accessed after 90 days. So even if a file is accessed on the 89th day, they would still want to "archive" that file the next day (again because they fully know the typical access behavior). However, Intelligent Tiering will reset the 90-day inactive clock starting on the 89th day (i.e. it will not archive the file until the 189th day assuming no other access).

D for sure

You can't configure Intelligent Tiering, that is the whole point of it. It's intelligent and moves things on its own so there is no 90 day configuration you can set. Therefore D is the answer.

Some songs make comebacks. Lifecycle policy isn't intelligent enough to deal with a resurgence in popularity of a ringtone. 128KB in size makes files eligible for Intelligent-Tiering.

Clearly option D is the correct. This is not a trick question.

I think this is a kind of tricky question (B VS D) However: The Q stated "most accessed files readily available for its users." From this and correct me if I am wrong, I think B is a better solution since Amazon S3 Intelligent-Tiering working on "moving data to the most cost-effective access tier based on access frequency" while the S3 Standard-IA doesn't. Ref: https://aws.amazon.com/s3/storage-classes/

B. Move the files to S3 Intelligent-Tiering and configure it to move objects to a less expensive storage tier after 90 days. Explanation: S3 Intelligent-Tiering is a storage class that automatically moves objects between two access tiers: frequent access and infrequent access, based on access patterns. By configuring S3 Intelligent-Tiering to move objects to a less expensive storage tier after 90 days of infrequent access, the company can save money on storage costs while ensuring that the most accessed files remain readily available. This approach is more cost-effective than using S3 Standard-Infrequent Access (S3 Standard-IA) because it automatically adjusts storage tiers based on access patterns without the need for manual configuration or management.

Right answer is D

D is cheapest and managed by S3 Lifecycle policy A: Not readily available C: Wrong product B: No choice of '90 days' so you'll be paying for Intelligent Tiering unnecessarily for files to drop out of frequent access after the first 90 days.

B is the correct answer Kindly follow the below link for more information as proof https://aws.amazon.com/s3/storage-classes/

The key reasons: S3 Lifecycle policies can automatically transition objects from S3 Standard to S3 Standard-IA after 90 days. S3 Standard provides high performance for frequently accessed newer files. S3 Standard-IA costs 20-30% less than S3 Standard for infrequently accessed files. This matches access patterns - high performance for new files, cost savings for older files. S3 Intelligent Tiering has higher request costs and complexity for this simple access pattern. S3 Inventory lists objects and their properties but does not directly transition objects. Lifecycle policies provide automated transitions without manual intervention.

Amazon S3 Standard-Infrequent Access (S3 Standard-IA) has a minimum billable object size, which currently is 128KB. This means that even if the stored object is smaller than 128KB, Amazon S3 will charge for a minimum of 128KB of data.

Very tricky case. Besides all the arguments for both camps. I lean to (B). There is an article about the adoption of Intelligent-Tiering in the recent years to save money. Had the following text is "all files ready", I would picked (D): keeping the most accessed files readily available . for its users. I hope AWS gives "partial credit" for both (B) and (D) regardless which is the MOST cost-effective.

Implement an S3 Lifecycle policy that moves the objects from S3 Standard to S3 Standard-Infrequent Access (S3 Standard-1A) after 90 days. I would not try to overthink this.

Not B because Intelligent-tiering = unkown patterns