Amazon S3

Question 1

It is an object storage service offering industry-leading scalability, data availability, security, and performance.

Answer 1

Amazon Simple Storage Service (Amazon S3)

Question 2

Amazon S3 files size can be up to?

Answer 2

5TB

Question 3

The total volume of data and the number of objects you can store in Amazon S3 is?

Answer 3

Unlimited

Question 4

Amazon S3 is suitable to install an operating system or run a database on. True or False?

Answer 4

False

Question 5

In Amazon S3 files stored in?

Answer 5

Buckets

Question 6

S3 is a universal namespace so all bucket names must be unique. True or False?

Answer 6

True

Question 7

How S3 URL are created?

Answer 7

bucket name, followed by the region, followed by the key name or the object or file name.
eg.: https://bucket-name.s3.region.amazonaws.com/key-name

Question 8

Amazon S3 object compose of?

Answer 8

Key
Value
Version ID
Metadata

Question 9

What S3 object “Key”?

Answer 9

The object name, e.g., Ralphie.jpg

Question 9

What S3 object “Value”?

Answer 9

This is the data itself, which is made up of a sequence of bytes.

Question 10

What S3 object “Version ID”?

Answer 10

Allows you to store multiple versions of the same object.

Question 11

What S3 object “Metadata”?

Answer 11

Data about the data you are storing, e.g., content-type, last-modified, etc.

Question 12

What are the S3 Storage Classes?

Answer 12

S3 Standard
S3 Standard-Infrequent Access
S3 One Zone-Infrequent Access
S3 Glacier
S3 Glacier Deep Archive
S3 - Intelligent Tiering

Question 13

Suitable for most workloads, e.g., websites, content distribution, mobile
and gaming applications, and big data analytics.

Answer 13

S3 Standard

Question 14

Long-term, infrequently accessed critical data, e.g., backups, data store
for disaster recovery files, etc. Minimum storage duration: 30 days.

Answer 14

S3 Standard-Infrequent Access

Question 15

Long-term, infrequently accessed, non-critical data. Minimum storage
duration: 30 days.

Answer 15

S3 One Zone-Infrequent Access

Question 16

Long-term data archiving that occasionally needs to be accessed within a few hours or minutes. Minimum storage duration: 90 days.

Answer 16

S3 Glacier

Question 17

Rarely accessed data archiving with a default retrieval time of 12 hours, e.g., financial records for regulatory purposes. Minimum storage duration: 180 days.

Answer 17

S3 Glacier Deep Archive

Question 18

Unknown or unpredictable access patterns. Minimum storage duration: 30 days.

Answer 18

S3 - Intelligent Tiering

Question 19

By default, all newly created buckets are private or public?

Answer 19

private

Question 20

Policies applied at a bucket level.

Answer 20

Bucket Policies

Question 21

Policies Applied at an object level.

Answer 21

Access Control Lists

Question 21

S3 buckets Access Logs

Answer 21

S3 buckets can be configured to create access logs, which log all requests made to the S3 bucket. These logs can be written to another bucket.

Question 22

S3 Encryption In-Transit

Answer 22

SSL/TLS - HTTPS.

Question 23

S3 Client Side Encryption

Answer 23

You encrypt the files yourself before you upload them into S3

Question 24

S3 Encryption At Rest - SSE

Answer 24

Server Side Encryption
SSE-S3 (AES 256-bit)
SSE-KMS
SSE-C

Question 25

Enforcing Encryption with a S3 Bucket Policy

Answer 25

A bucket policy can deny all PUT requests that don’t include the
x-amz-serverside-encryption parameter in the request header.

Question 26

It is a way of allowing code that is in one S3 bucket to access or reference code that is in another S3 bucket allowing one resource to access another resource.

Answer 26

Cross-Origin Resource Sharing ( CORS )

Question 27

This is the location where content will be cached. This is separate to an AWS Region/AZ.

Answer 27

EDGE LOCATION

Question 28

The origin of all the files that the distribution will serve. Can be an S3 Bucket, an EC2 Instance, an Elastic Load Balancer, or Route53.

Answer 28

ORIGIN

Question 29

The Origin and configuration settings for the content you wish to distribute using CloudFront (CDN).

Answer 29

DISTRIBUTION

Question 30

_____________ are not just READ only — you can WRITE to them, too. (i.e. PUT an object on to them.)

Answer 30

Edge Locations

Question 31

CloudFront Edge Locations are utilized by ___________ to reduce latency for S3 uploads.

Answer 31

S3 Transfer Acceleration

Question 32

Objects are cached for the life of the ___________. You can clear cached objects, but you will be charged.

Answer 32

Time To Live (TTL)