S3

Question 1

What is S3?

Answer 1

S3 is a highly-durable hash table in the cloud that provides highly scalable objects storage

Question 2

What are the best types of files to store in S3?

Answer 2

pictures, .css, .html, etc

Question 3

What’s the maximum file capacity of S3?

Answer 3

5 TB

Question 4

What’s the maximum storage capacity in S3?

Answer 4

Unlimited

Question 5

What’s the maximum bandwidth S3 provides?

Answer 5

Infinite

Question 6

How data consistency work for S3?

Answer 6

READ after WRITE consistency for PUTS on new objects

Eventual Consistency for overwrite PUTS and DELETES (can take some time to propagate)

Question 7

What are the 6 main S3 features?

Answer 7

Tiered Storage Available
Lifecycle Management
Versioning
Encryption
Secure your data using Access Control Lists and Bucket Policies

Question 8

What are the 7 types of S3 Storage classes?

Answer 8

Standard
IA (infrequently accessed)
One Zone - IA
Intelligent Tiering
Glacier
Glacier Deep Archive
Outposts

Question 9

What are the main benefits of S3 Standard?

Answer 9

Provides 99.99% availability

99.99999999999% durability (11 9s)

Question 10

What’s the usage of S3 IA (infrequently accessed)?

Answer 10

For data that is less frequently but requires rapid access when needed. Lower fee them standard but you’re charged a retrieval fee

Question 11

What’s a common scenario for S3 One Zone - IA

Answer 11

For when you want a lower cost option for infrequently accessed data but don’t require AZ data resilience

Question 12

What is the usage for S3 Intelligent Tiering

Answer 12

Designed to optimize costs by automatically moving data to the most cost-effective access tier without performance impact or operational overhead

Question 13

What’s S3 Glacier?

Answer 13

Low-cost storage class for data archiving. Retrieval times configurable from minutes to hours

Question 14

What’s S3 Glacier Deep Archive?

Answer 14

Lowest-cost storage class where a retrieval time of 12 hours is acceptable

Question 15

What are the benefits of S3 Outposts?

Answer 15

It delivers object storage to on-premises AWS Outposts environments

Question 16

What are the 6 S3 charge Policies?

Answer 16

1. Storage
2. Requests
3. Storage Management Pricing
4. Data Transfer Pricing
5. Transfer Acceleration
6. Cross-Region Replication Pricing

Question 17

How S3 Transfer Acceleration works?

Answer 17

It enables fast, easy and secure transfer of files over long distances between your end users and S3 buckets by taking advantage of Amazon CloudFront’s globally distributed Edge Locations. As the data arrives at an edge location, data is routed to Amazon S3 over an optimized network path

Question 18

What is Cross-Region Replication?

Answer 18

Allows you to have 2 buckets one being the replication of the other.

Question 19

How to restrict bucket access?

Answer 19

By Implementing:
Bucket Policies: applies across the whole bucket
Object Policies: applies to individual files
IAM policies to Users & Groups: Applies to users & Groups

Question 20

What’s the downside of hosting static websites in S3?

Answer 20

It doesn’t provide HTTPS.

Question 21

How to make entire buckets public?

Answer 21

You can use the buckets policies to make the entire S3 buckets public. Just uncheck all boxes that disallow public access.

Question 22

What types of sites can be stored in S3? Which one can’t?

Answer 22

Static websites can be stored but dynamic sites can’t be hosted because they require database connections such as WordPress.

Question 23

What’s S3 versioning?

Answer 23

Stores all versions of an object including all WRITES you did and even if you DELETE an object

Question 24

What can you do once enabling versioning in S3?

Answer 24

You can only suspend versioning, never disable it

Question 25

How to improve the security layer over S3 versioning?

Answer 25

By applying MFA to prevent delete capability