A radio station compiles a list of the most popular songs each year. The songs are frequently fetched within 180 days. After that, the users will have a default retrieval time of 12 hours for downloading the files. The files should be stored for over 10 years. Which is the most cost-effective object storage after 180 days?

Answer options:

A.Amazon S3 Glacier
B.Amazon S3 One Zone - Infrequently Accessed
C.Amazon S3 Glacier Deep Archive
D.Amazon S3 Standard - Infrequently Accessed

Correct Answer – C
Amazon S3 Glacier Deep Archive is the most cost-effective object storage to implement because the information will be rarely accessed and when it is accessed, its retrieval period will not be instant.
https://aws.amazon.com/s3/faqs/#Amazon_S3_Glacier_Deep_Archive
Option A is incorrect because the information might not be referred to again after it was created. Amazon S3 Glacier is appropriate to a certain degree but not the most cost-effective option.
Option B is incorrect because Amazon S3 One Zone - Infrequently Accessed is suitable for information that warrants a short retrieval time. In this scenario, a short retrieval time is not critical.
Option D is incorrect because Amazon S3 Standard - Infrequently Accessed is not a cost-effective option since the list of songs will only be relevant once and then rarely accessed thereafter.