AWS - Certified Solutions Architect S3 Storage Classes and Policies Questions and Answers

Question 1

A financial services company is required to store trade confirmation data for 7 years to meet regulatory requirements.
The data is accessed frequently for the first 30 days, then rarely accessed afterwards.
However, if access is needed after the initial 30 days, it must be available within minutes.
After one year, the data is only accessed for quarterly audits and a retrieval time of up to 12 hours is acceptable.
Which S3 Lifecycle policy is the MOST cost-effective solution?

Accepted Answer

Transition to S3 Standard-IA after 30 days, then to S3 Glacier Flexible Retrieval after 365 days.

Answer

Transition to S3 Intelligent-Tiering after 30 days.

Answer

Transition to S3 One Zone-IA after 30 days, then to S3 Glacier Deep Archive after 365 days.

Answer

Keep the data in S3 Standard for the entire 7-year period.

Question 2

A company is launching a new web application that will store user-generated content. The access patterns for this data are unknown and expected to be unpredictable. The company wants to optimize storage costs automatically without impacting performance or availability. Which S3 storage class should be used as the default for new objects?

Accepted Answer

S3 Intelligent-Tiering

Answer

S3 Standard

Answer

S3 Standard-IA

Answer

S3 One Zone-IA

Question 3

A research institute needs to store a large, multi-petabyte dataset for long-term archival. The data is rarely, if ever, accessed, but must be retained for 10 years for compliance. In the rare event of a retrieval request, a 24-hour turnaround time is acceptable. Which S3 storage class offers the lowest storage cost for this scenario?

Accepted Answer

S3 Glacier Deep Archive

Answer

S3 Standard-IA

Answer

S3 Glacier Flexible Retrieval

Answer

S3 Intelligent-Tiering

Question 4

A company stores secondary backup copies of its on-premises data in an S3 bucket. The data is infrequently accessed and can be easily regenerated if lost. To minimize costs, the company is willing to accept lower availability compared to S3 Standard. Which storage class provides the LOWEST cost for this use case?

Accepted Answer

S3 One Zone-IA

Answer

S3 Standard

Answer

S3 Standard-IA

Answer

S3 Glacier Instant Retrieval

Question 5

Which of the following access control mechanisms is primarily used to grant permissions to entire S3 buckets and is the recommended method by AWS for most use cases over legacy options?

Accepted Answer

Bucket Policies

Answer

Access Control Lists (ACLs)

Answer

IAM User Policies

Answer

Service Control Policies (SCPs)

Question 6

A media company uses an S3 bucket to store raw video footage. They have a lifecycle policy to transition this footage to S3 Glacier Flexible Retrieval after 90 days. An urgent need arises to retrieve a 10 GB file from Glacier that was archived 6 months ago. The file is needed within 5 minutes. Which retrieval option should be used?

Accepted Answer

Expedited Retrieval

Answer

Standard Retrieval

Answer

Bulk Retrieval

Answer

Instant Retrieval