September 26, 2020

Which S3 Storage Class is the most cost-effective for archiving data with no retrieval time requirement?

Amazon Glacier Deep Archive (Amazon Glacier Deep Archive is the most cost-effective option if you want to archive data and do not have a retrieval time requirement. You can retrieve data in 12 or 48 hours.)

What hybrid AWS service is used to allow on-premises servers to seamlessly use the AWS Cloud at the storage layer?

Storage Gateway (AWS Storage Gateway is a hybrid cloud storage service that gives you on-premises access to virtually unlimited cloud storage.)

Which of the following services is a petabyte-scale data moving service (as a fleet) in or out of AWS with computing capabilities?

Snowball Edge (Snowball Edge is best-suited to move petabytes of data and offers computing capabilities. Be careful, it’s recommended to use a fleet of Snowballs to move less than 10PBs of data. Over this quantity, it’s better-suited to use Snowmobile.)

Which of the following is an exabytes-scale data moving service in or out of AWS?

Snowmobile (Snowmobile is used to move exabytes of data in or out of AWS (1 EB=1,000 PBs=1,000,000 TBs).)

What are Objects NOT composed of?

Access Keys (Access Keys are used to sign programmatic requests to the AWS CLI or AWS API.)

Where are objects stored in Amazon S3?

Buckets (Buckets store objects in Amazon S3.)

What can you use to define actions to move S3 objects between different storage classes?

Lifecycle Rules (Lifecycle Rules can be used to define when S3 objects should be transitioned to another storage class or when objects should be deleted after some time.)

Which S3 Storage Class is suitable for less frequently accessed data, but with rapid access when needed, while keeping a high durability and allowing an Availability Zone failure?

Amazon S3 Standard-Infrequent Access (Amazon S3 Standard-Infrequent Access allow you to store infrequently accessed data, with rapid access when needed, has a high durability, and is stored in several Availability Zones to avoid data loss in case of a disaster. It can be used to store data for disaster recovery, backups, etc.)

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