EC2 , EFS, & EBS Storage Flashcards
What is EBS(Elastic block store) and how are you charged for it using aws services
Amazon Elastic Block Store (EBS) is an easy-to-use, scalable, high-performance block-storage service designed for Amazon Elastic Compute Cloud (EC2).
The fundamentals charges for EBS volumes are: the volume type (based on performance), the storage volume in GB per month provisioned, the number of IOPS provisioned per month, the storage consumed by snapshots, and outbound data transfer.
With EBS volumes you are charged for the amount of data provisioned (not consumed) per month. This means you can have empty space within a volume and you still pay for it. With provisioned IOPS volumes you are also charged for the amount you provision in IOPS
What are the basic guidelines for using EBS
When using EBS Volumes, the volume and the instance must be in the same Availability Zone.
What is EFS (Elastic File system) and how does it work
Amazon EFS file systems store data and metadata across multiple Availability Zones in an AWS Region. EFS file system can be mounted on instances across multiple Availability Zones.
The service is designed to be highly scalable, highly available, and highly durable.
What type of scenario requires using a EC2 Dedicated host
Amazon EC2 Dedicated Hosts allow you to use your eligible software licenses from vendors such as Microsoft and Oracle on Amazon EC2. An Amazon EC2 Dedicated Host is a physical server fully dedicated for your use, so you can help address corporate compliance requirements.
What type of scenario requires using a EC2 Dedicated instance
Dedicated Instances are Amazon EC2 instances that run in a virtual private cloud (VPC) on hardware that’s dedicated to a single customer. You cannot use Dedicated Instances for using server-bound software licenses.
