5 Choosing Storage for Common Workloads Free Online FlashCards

What is the first step in choosing a storage service?

Start by matching the application’s data model—block, file, or object—to the storage service, then consider access patterns, performance, sharing, durability, and total cost.

How does an application access objects in Amazon S3?

Amazon S3 stores objects in buckets, accessed through APIs. It is not a mounted disk or a conventional shared file system.

What kind of storage does Amazon EBS provide?

Amazon EBS provides block storage volumes attached to EC2 instances. The operating system can format a volume with a file system or an application can use it directly.

How do supported clients access an Amazon EFS file system?

Amazon EFS provides file storage accessed through NFS and mounted in a file-system directory. Multiple supported clients can access the same file system.

What are S3 Glacier archival classes, and what access constraint may apply?

S3 Glacier archival classes are object storage classes within S3, not a separate file system. Some classes require objects to be restored before ordinary access.

Which service fits a database needing a persistent, low-latency disk?

Use EBS for a database that needs a persistent disk with low-latency access; choose a volume type suited to its capacity and performance requirements.

Which service fits shared files needed by several Linux instances?

Use EFS when multiple Linux-based instances need shared access to files and directories through a common file system.

Which service suits scalable storage for images and logs?

Use Amazon S3 for scalable object storage such as images, backups, logs, and data-lake data; select a storage class suited to access frequency.

How does Glacier Instant Retrieval differ from colder archive classes?

S3 Glacier Instant Retrieval supports real-time access. Glacier Flexible Retrieval and Deep Archive are for data that is not available in real time and must be restored.

Which provisioning choices affect EBS cost?

EBS costs depend on provisioned storage and, depending on volume type, provisioned IOPS or throughput.

Beyond stored data, what can affect S3 cost?

S3 costs can vary with storage class, request volume, data retrieval, and data transfer.

What are key factors in EFS cost?

EFS cost depends on the amount of data in each storage class and the throughput configuration.