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.

Option D is the most cost-effective solution as it leverages an S3 Lifecycle policy to automatically transition infrequently accessed files to S3 Standard-IA after 90 days, saving costs while meeting the company’s requirements.

B. Mova os arquivos para o S3 Intelligent-Tiering: O S3 Intelligent-Tiering é uma solução flexível, mas tem uma pequena taxa mensal para monitorar os objetos. No caso descrito, uma política de ciclo de vida seria mais econômica para o comportamento de acesso conhecido (raros acessos após 90 dias).

Why D over the other options? A. Configure S3 Standard-IA for initial storage: Not cost-effective for frequently accessed files during the first 90 days, as S3 Standard-IA is optimized for infrequent access. B. Use S3 Intelligent-Tiering: While Intelligent-Tiering is a good choice for unpredictable access patterns, it incurs a monthly monitoring fee per object. Since the company's pattern is predictable (infrequent access after 90 days), this additional cost is unnecessary. C. Use S3 inventory to manage objects manually: S3 inventory only generates reports and does not automate object transitions. Manually moving objects is less efficient and error-prone compared to automated lifecycle policies.

Ans D - as well explained by rjam (1 year, 11 months ago)

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.