S3 - Simple Storage Service Flashcards
What is AWS service goal?
To store any amount of data from anywhere on the web.
What is S3?
Simple Storage Service is a platform that simplifies the storage of files, making them flat (documents and pictures) and is not used for database purposes.
What is the fundamental structure of S3?
A bucket.
What is a bucket?
The fundamental structure of S3, it is the top file folder and contains objects. These objects can either be flat or folders.
How does S3 work?
It is a storage system based in keys and values. Data is retried by referring to a unique object key (the keys are strings which can mimic a hierarchical structure).
What is the size capacity?
While there is no limit in the total volume of data and number of objects a customer can store in the S3 services, each bucket has a maximum storage capacity of 5TB with a cap of 5GB on the upload size.
What are the S3 offerings?
S3 Standard
S3 Infrequent Access
S3 One Zone Infrequent Access
S3 Intelligent Tiering
Glacier
Glacier Deep Archive
S3 Outpost
What is AWS Availability?
The percentage of successful external connectivity.
What is AWS Service Level Agreement?
AWS Service Level Agreement (SLA) defines the availability for each service.
What is reliability?
The ability of a workload to perform its intended function correctly and consistently when its expected to (the 11 nines rule - 99.999999999%)
What is S3 Standard?
The default storage system, it is designed to be replicated across 3 or more availability zones.
What is S3 Infrequent Access?
The Infrequent Access model is intended for data that requires less frequent access than the S3 standard, but when access to the data is required, it has to be done quickly.
What is S3 One Zone Infrequent Access?
Similar feature with Infrequent Access; however, data is stored in only one availability zone.
What is S3 Intelligent Tiering?
This option uses Artificial Intelligence to detect the places where the data is most frequently accessed and thus, the data is placed in the locations where the access will be more convenient and cost-effective.
What is Glacier?
This mode is for long term data storage (frozen data).
What is Glacier Deep Archive?
The lowest cost option, it is meant for long term storage of data.
What is S3 Outpost?
This service is an extension of AWS that reaches out to customers on-premises. It deploys physical equipment inside the customer’s location.
What are the S3 locations?
Common Service Area / AWS public area where the services are contained in a region-dependent location.
What is a pure private subnet?
A subnet that does not have access to anything outside the VPC.
What does a NAT Gateway allow and block?
A NAT Gateway allows access to resources outside the VPC while blocking access from outside.
What does an Endpoint allow?
An Endpoint allows access specific to a resource in the AWS common area.
What are all the different types of storage?
S3, EFS (Elastic File System), FSx, Storage Gateway and AWS Backup.
What are the S3 Permissions and what do they effect?
A policy applies to the whole bucket.
An Access Control List applies specifically to the objects.
