AWS认证SAA-C03每日一题

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【SAA-C03助理级解决方案架构师认证】

A company has na application that generates a large number of files, each
approximately 5 MB in size.The files are stored in Amazon S3. Company policy requires teh files to be stored for 4 years before they can be deleted. Immediate accessibility is always required as teh files contain critical business data that is not easy to reproduce. The files are frequently accessed in the first 30 days of the object creation but are rarely accessed after the first 30 days.
Which storage solution is MOST cost effective?
A :   Create an S3 bucket lifecycle policy to move files from S3 Standard to S3 Glacier 30 days from object creation. Delete the files 4 years after the object creation.
B :   Create an S3 bucket lifecycle policy to move files from S3 Standard to S3 One Zone-Infrequent Access(S3 One Zone-IA) 30 days from object creation. Delete the files 4 years after the object creation.
C :   Create an S3 bucket lifecycle policy to move files from S3 Standard to S3 Standard Infrequent Access(S3 Standard-IA) 30 days from object creation. Delete the files 4 years after the object creation.
D  :   Create an S3 bucket lifecycle policy to move files from S3 Standard to S3 Standard -Infrequent Access (S3 Standard-IA) 30 days from object creation.  Move the file to S3 Glacier 4 years after object creation.

正确答案  C