Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 49 discussion

bro u r forgetting cost effectiveness which is the requirement 1 yr in s3 standard will cost more than s3 intelligent tire.

Helps to read sometimes

It syas "... access the files INFREQUENTLY after 1 year"

it doesnt say predictable, it says files are accessed random. Random = Unpredictable. Answer is B

With S3 Intelligent-Tiering, you can define rules that determine when objects should be moved from the frequent access tier to the infrequent access tier, or vice versa, within S3 Standard storage classes.

The Answer is B. S3 Intelligent-Tiering stores objects in two access tiers: one tier that is optimized for frequent access and another lower-cost tier that is optimized for infrequent access. For a small monthly monitoring and automation fee per object, S3 Intelligent-Tiering monitors access patterns and moves objects that have not been accessed for 30 consecutive days to the infrequent access tier. There are no retrieval fees in S3 Intelligent-Tiering. If an object in the infrequent access tier is accessed later, it is automatically moved back to the frequent access tier. No additional tiering fees apply when objects are moved between access tiers within the S3 Intelligent-Tiering storage class. S3 Intelligent-Tiering is designed for 99.9% availability and 99.999999999% durability, and offers the same low latency and high throughput performance of S3 Standard

C involves moving "the files to S3 Glacier Instant Retrieval" which is not cost-effective since "a delay in retrieving older files is acceptable."