S3 101

Question 1

What does S3 stand for?

Answer 1

Simple Storage Service

Question 2

What is S3 used for?

Answer 2

S3 provides developers + IT teams w/ secure, durable, highly-scalable object storage.

Retrieve and store ANY amount of date form ANYWHERE on the web

Question 3

What type of storage does S3 use?

Answer 3

S3 uses Object-based storage.. I.E.: it allows you to upload files

Question 4

What is the maximum allowable storage you can have in S3 for a single object?

Answer 4

S3 files can be from 0 Bytes to 5 TB

Question 5

What is the maximum allowable storage you can have in S2 in total?

Answer 5

The total volume of data and number of objects you can store are unlimited.

Question 6

What are S3 buckets?

What are S3 buckets used for?

Answer 6

S3 buckets store files.

–Think of them like a file folder–

Question 7

What type of namespace does S3 use?

Answer 7

S3 uses a universal namespace.

That is names must be globally unique

Question 8

You go into the AWS console and want to make a bucket called ‘testbucket’ in the Japanese region.

Why won’t AWS let you do this?

Answer 8

Bucket names are Global not Regional.

Question 9

When you successfully upload a file to S3, what will you receive back?

Answer 9

an HTTP 200 code

Question 10

What are the components of an S3 object?

What do each of these components represent?

Answer 10

An S3 object consists of the following:

1. Key - The Name of the Object
2. Value - The data, made up of a sequence of bytes
3. Version ID - Important for versioning / version control
4. Metedata - data about data you are storing
5. Subresources - Access Control List, Torrent

Question 11

What is the data consistency mode in S3?

Answer 11

Read After Write Consistency.

Strong Consistency for everything

Question 12

For what % availability was the S3 platform built?

Answer 12

99.99%

Question 13

What % availability does Amazon guarantee for S3 Standard?

Answer 13

99.9%

Question 14

What % durability does Amazon guarantee for S3 Standard Information?

Answer 14

99.999999999% (11 9’s)

Question 15

What is the availability of S3-OneZone-IA?

Answer 15

99.50%

Question 16

What are the key features of S3?

Answer 16

Key Features are:

1. Versioning
2. MFA Delete
3. LifeCycle Management
4. Tiered Storage
5. Secure Data Using Access Control Lists and Bucket Policies

Question 17

What are the key features of S3 Standard?

Answer 17

1) 11 9s Durability
2) Redundancy Stored redundantly across multiple devices in multiple facilities, designed to sustain the loss of 2 facilities concurrently

Question 18

What does the “IA” stand for in “S3-IA”?

Answer 18

IA = Infrequently Accessed

Question 19

What type of data is best stored in S3-IA?

Answer 19

S3-IA is best for data that is not accessed frequently but requires rapid access when needed.

Question 20

What is the pricing structure of S3-A1A?

Specifically how does it differ from that of S3 Standard?

Answer 20

S3-IA has a lower based storage fee than S3 Standard.

However, S3-IA charges a retrieval fee

Question 21

What are the key differences between S3-IA and S3 One Zone-IA?

Answer 21

Compared to S3-IA, S3 One Zone-IA has a lower cost but less durability.

S3 One Zone-IA is a lower cost options for IA data.
S3 One Zone-IA does not give the multiple Availability Zone resilience of S3 Standard and S3 IA

Question 22

What is S3-Intelligent Tiering?

Answer 22

S3 Intelligent tiering uses LM and is designed to optimize cost by automattically moving data to the most cost-effective access tier, without performance impact or operational overhead.

–Basically it’s the autopilot mode for S3 tiering –

Question 23

How does the pricing model work for S3 Intelligent Tiering?

Answer 23

Very Similar to S3 Standard –Except–

You have access to IA which is less expensive.
There is a monitoring / automation cost per thousand objects per month

Question 24

What is Glacier primarily used for?

Answer 24

S3 Glacier is mostly used for data archival at low-cost

Question 25

How long does it take to retrieve something from S3 Glacier?

Answer 25

Retrieval times from S3 Glacier are configurable and range from minutes to hours