A digital enterprise is looking for storage options with Amazon EFS for its new gaming application. Files stored will be rarely accessed after upload but should always be readily available. They are looking for the most cost-effective storage options to store these data.
Which storage class is best suited to meet this requirement?

Answer options:

A.Amazon EFS Standard-IA.B.Amazon EFS Standard
C.Amazon EFS One Zone
D.Amazon EFS One Zone-IA

Correct Answer: A
Amazon EFS Standard-IA storage class can be used to store data that is infrequently accessed but requires high availability and durability. With Amazon EFS Standard-IA storage class, data is stored redundantly across multiple AZ.
Option B is incorrect. Since files will be accessed infrequently, Amazon EFS Standard-IA is more cost-effective than Amazon EFS Standard storage class.
Option C is incorrect as with Amazon EFS One Zone, there is a risk of data loss when the AZ is unavailable.
Option D is incorrect as with Amazon EFS One Zone-IA, there is a risk of data loss when One AZ is unavailable.
For more information on storage classes with Amazon EFS, refer to the following URL,
https://docs.aws.amazon.com/efs/latest/ug/storage-classes.html