AWS Storage Services

Question 1

S3

Answer 1

Simple Storage Service is an object storage service for the cloud that is highly available

• backup and restore
• data lakes
• archival solutions

Question 2

S3 Standard

Answer 2

• General purpose storage
• Data stored across multiple availability zones
• Low latency and high throughput

Pricing:

• per GB/month storage fee
• data egress (outbound data)

Recommend for:

• Frequently accessed data

Durability: 99.999999999 %
Availability: 99.99%

Question 3

S3 Intelligent-Tiering

Answer 3

• Automatically moves your data to the most cost-effective storage class
• Automatic cost services
• No retrieval fees
• Data stored across multiple Availability Zones

Recommended for:

• Data with unknown or changing access patterns

Durability: 99.999999999 %
Availability: 99.9 %

Question 4

S3 Standard-Infrequent Access (IA)

Answer 4

• Data accessed less frequently but requires rapid access
• Data stored across multiple Availability Zones
• Cheaper than S3 standard

Recommended for:

• Long-lived data
• Infrequently accessed
• Millisecond access when needed

Durability: 99.999999999%
Availability: 99.9%

Question 5

S3 One Zone-Infrequent Access (IA)

Answer 5

• Like S3 Standard-IA but data stored in a single Availability Zone
• Costs 20% less than S3 Standard-IA
• Data stored in this storage class can be lost

Recommended for:

• Re-creatable data
• Infrequently accessed with millisecond access
• Availability and durability not essential

Durability: 99.999999999%
Availability: 99.5%

Question 6

S3 Glacier

Answer 6

• Long-term data storage and archival for lower costs
• Data retrieval takes longer
• 3 retrieval options: Expedited 1-5 minutes, Standard 3-5 hours, or Bulk 5-12 hours
• Data stored across multiple Availability Zones

Pricing

• per GB/month
• retrieval requests
• quantity
• data transfer out

Recommended for:

• Long-term backups
• Cheaper storage options

Question 7

S3 Glacier Deep Archive

Answer 7

• Like S3 Glacier but longer access times
• 2 retrieval options: 12 hours or 48 hours
• Cheapest of all S3 options
• Data stored across multiple Availability Zones

Recommended for:

• long-term data archival accessed once or twice a year
• retaining data for regulatory compliance requirements

Durability: 99.999999999%

Question 8

S3 Outposts

Answer 8

• Provides object storage on-premises
• A single storage class
• Store data across multiple devices and servers

Recommended for:

• Data that needs to be kept local
• Demanding application performance needs to be

Question 9

EBS

Answer 9

Elastic Block Store is a storage device (called a volume) that can be attached to (or removed from) your instance

• data persists when instance is not running
• tied to one availability zone
• can only be attached to one instance in the same availability zone

Recommended for:

• quickly accessible data
• running a database on an instance
• long-term data storage

Question 10

EFS

Answer 10

Elastic File System is a serverless network file system for sharing files

• ONLY supports the Linux file system
• accessible across different Availability Zones in the same Region
• More expensive than EBS

Recommended for:

• main directories for business-critical apps
• lift-and-shift existing enterprise apps
• big data and analytics media processing workflows
• content management and web serving

Question 11

Storage Gateway

Answer 11

Hybrid storage service.

• connects on-premises and cloud data
• File Gateway: virtual on-premises file server
• Tape Gateway: backup with popular backup software
• Volume Gateway: family of gateways that support block-based volumes

Recommended for:
- moving backups to the cloud
- reducing costs for hybrid cloud storage
- low latency access to data

Question 12

Backup

Answer 12

Helps you manage data backups across multiple data services

• integrates with resources like EC2, EBS, EFS and more
• create a backup plan that includes frequency and retention

Question 13

EC2 Instance Store

Answer 13

A local storage that is physically attached to the host computer and cannot be removed.

• storage on disks physically attached to an instance
• storage is temporary since data loss occurs when the EC2 instance is stopped
• Faster with higher I/O speeds

Recommended for:

• temporary storage needs
• data replicated across multiple instances

Question 14

S3 File Gateway

Answer 14

Allows you to store and access objects in S3 from NFS or SMB file data with local caching

Question 15

Amazon FSx

Answer 15

Offers fully managed third-party file systems (Windows File Server, Lustre) giving users native compatibility and a feature-rich experience

Question 16

Object Lifecycle Management

Answer 16

Object can be transitioned to another storage class or expired

Question 17

S3 Transfer Acceleration

Answer 17

Enables fast, easy and secure transfers of files over long distances between your client and your Amazon S3 bucket

Question 18

HTTP Response Codes

Answer 18

• 200: successful upload
• 300: redirection
• 400: client error
• 500: server error

Question 19

S3 Cross-Region Replication (CRR)

Answer 19

Used to copy objects across Amazon S3 buckets in different AWS Regions

• buckets can be owned by the same AWS account or by different accounts
• can copy objects between different regions or within the same region
• both source and destination must have versioning enabled