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AWS Practitioner > Storage > Flashcards

Storage Flashcards

1
Q

Amazon S3 (Simple Storage Service)

A

A highly available object based storage service for the cloud

Objects (files) are stored in buckets(directories)

Essentially unlimited storage that can hold millions of objects per bucket

Objects can be public or private

You can upload objects via the console, cli, or programmatically from w/in code using sdks

You can set security at the bucket level, or individual object level using access control lists (ACLs), bucket policies, or access point policies

There are access logs to track access to buckets or objects

You can enable versioning to create multiple versions of your file in order to protect against accidental deletions and to keep older versions

S3 is a regional service but buckets must be globally uniquely named

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2
Q

Availability

A

Ability to access data quickly when you need it. S3 availability standard is 99.99%

This is a regional service that replicates data across the region. Cross region replication can be configured.

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3
Q

Durability

A

The safety of your objects from loss or or being compromised. S3 guarantees 11 9s of durability.

This is a regional service and it will replicate across the region. Cross region replication can be configured.

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4
Q

S3 Standard

A

General purpose storage, data is stored across multiple AZs. Has 11 9s durability 99.99 availability, with low latency and high throughput.

Recommended for frequently accessed data

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5
Q

S3 Intelligent Tier

A

Recommended for data with unknown or changing access patterns.

Automatically moves data too the most cost effective storage class.

Automatic cost savings.

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6
Q

S3 Standard Infrequent Access

A

Recommended for long lived data, that’s infrequently accessed, millisecond access where needed.

Data stored across multiple AZs

Cheaper than S3 standard, 1a 9s durability 99.9 availability

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7
Q

S3 One Zone Infrequent Access

A

Recommended for recreatable data, infrequently accessed with millisecond access, availability and durability not essential

Like S3 Standrd IA but data is stored in a single AZ

Costs 20% than S3 Standard IA

Data stored in this storage class can be lost

11 9s durability 99.5 availability

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8
Q

S3 Glacier

A

Recommended for long term backups & cheaper storage options

Data retrieval takes longer with 3 options: 1-5 minutes, 3-5 hours, or 5-12 hours

Data is stored across multiple AZs

Durability 11 9s

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9
Q

S3 Glacier Deep Archive

A

Recommended for long term data archival accessed once or twice a year, retaining data for regulatory compliance requirements.

Like S3 glacier but longer access times,

2 options - 12 hours and 48 hours

Cheapest of all S3 options

Data stored across multiple AZs with 11 9s durability

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10
Q

S3 Outposts

A

Recommended for data that needs to be kept local for demanding app performance needs

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11
Q

Use Case for S3: Static Websites

A

Deploy static websites to S3 & use cloud front for global distribution

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12
Q

Use Case for S3: Data Archive

A

Archive data using Glacier as a storage option for Amazon S3

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13
Q

Use Case S3: Analytics Systems

A

Store data in Amazon S3 for use w/ analytics services like redshift or athena

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14
Q

Use Case S3: Mobile Apps

A

Mobile apps users can upload files to an S3 bucket

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15
Q

EC2 Storage

A

Supports different storage solutions for instances.

EBS, EFS, Instance Stores, etc.

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16
Q

Amazon Elastic Block Store EBS

A

EBS is a storage device (called a volume) that can be attached to or removed from your instance.

Data persists when the instance is not running, but is tied to only one AZ.

Can only be attached to an instance in the same AZ

Recommended for quickly accessible data, running a DB on an instance, long term data storage

17
Q

EC2 Instance Store

A

Local storage that is physically attached to the host computer and cannot be removed

Storage on disks physically attached to an instance

Faster w/ higher IO speeds

Storage is temporary as the data does not persist when the instance is turned off

Recommended for temp storage needs and data that needs to be replicated across multiple instances

18
Q

Amazon Elastic File System EFS

A

EFS is a server-less network file system for sharing files

Only supports Linux file systems

More Expensive than EBS

Accessible across different AZs in the same region

Recommended for main directories for business critical apps & lift & shift existing enterprise apps

19
Q

Storage Gateway

A

Hybrid storage service

Connect on-prem and cloud data

Recommended for moving backups to the cloud, reducing costs of hybrid cloud storage, low latency access to data

20
Q

AWS Backups

A

Helps manage data backups across multiple AWS Services.

Integrates with resources like EC2, EBS, EFS, and more

Create a back up plan that includes frequency and retention

21
Q

Content Delivery Network (CDN)

A

A CDN is a mechanism to deliver content quickly and efficiently based on Geographic Location

22
Q

Amazon Cloudfront

A

A CDN that delivers data and apps globally with low latency.

You can make it only available locally by using location based restrictions.

Speeds up the delivery of static and dynamic web content

Uses edge locations to cache content for faster delivery

23
Q

Amazon Global Accelerator

A

Global Accelerator sends your users through the AWS global network when accessing your content, speeding up delivery

Improves latency and availability of single region apps

Sends traffic through the AWS global network infrastructure

Gives a 60% performance boost

Automatically reroutes traffic to healthy available regional endpoints

24
Q

Amazon S3 Transfer Acceleration

A

Improves content uploads & downloads to & from S3 buckets

Fast transfer of files over long distances

Uses Cloudfront globally distributed edge networks

Customers from around the world can upload to a central bucket

25
Q

Snowcone

A

Smallest member of data transport devices

8 terabytes of usable storage

Offline shipping - can choose to ship offline

Online w/ data sync - essentially you have the option to use data sync

26
Q

Snowball and Snowball Edge

A

Petabyte scale data transport solution

Transfer data in and out

Cheaper than internet transfer

Snowball edge supports EC2 and Lambda

Also has an edge computing device that allows you to run EC2 and lambda as it has local processing

27
Q

Snowmobile

A

Multi-petabyte or exabyte scale

Data loaded to S3

Securely transported, GPS tracking, alarms, and 24x7 video monitoring

28
Q

Data sync

A

Allows for online data transfer from on-prem to AWS storage services like S3 or EFS

Can copy data over direct connect or internet

Copy data between AWS storage services

Replicate data across region or account

AWS Practitioner (8 decks)

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