The Basics (Chapters 1 & 2)

Question 1

What are the advantages of cloud computing?

Answer 1

1. Trade capital expense for variable expense
2. Benefit from massive economies of scale
3. Stop guessing about capacity
4. Increase speed & agility
5. Stop spending money running & maintaining data centers
6. Go global in minutes

Question 2

Name the 3 types of cloud computing services.

Answer 2

IAAS - Infrastructure
PAAS - Platform
SAAS - Software

Question 3

What are the different cloud types.

Answer 3

1. Public - AWS, Azure, GCP
2. Hybrid - Mixture of public & private
3. Private - Self-managed, in personal data center.

Question 4

Considerations for choosing the right AWS region?

Answer 4

• Data sovereignty laws
• Latency to end users
• AWS Services

Question 5

Identify the different support packages for AWS.

Answer 5

1. Basic - free
2. Developer - $29/month*
3. Business - $100/month*
4. Enterprise - $15,000/month* & TAM

*Scales based on usage

Question 6

What does JSON stand for?

Answer 6

Java Script Object Notation

Question 7

IAM is an abbreviation for?

Answer 7

Identity Access Management

Question 8

How do you access the AWS platform?

Answer 8

• Via the console
• Programmatically (using the command line)
• Using the Software Developers Kit (SDK)

Question 9

What do each of the 3 S stand for?

Answer 9

Simple Storage Service

Question 10

True or False - S3 is object-based.

Answer 10

True (it allows you to upload files)

Question 11

True or False - Files can be from 0 Bytes to 5 MB

Answer 11

False (files can be as large as 5 TB)

Question 12

Is S3 storage limited or unlimited?

Answer 12

Unlimited

Question 13

An S3 namespace must be what?

Answer 13

Unique globally

Question 14

File folders are known as _______.

Answer 14

Buckets

Question 15

When you receive a HTTP 200 CODE, what does that mean?

Answer 15

The upload was successful

Question 16

Key refers to?

Answer 16

The name of the object

Question 17

Data made up by a sequence of bytes is known as:

Answer 17

Value

Question 18

Why are there Version IDs?

Answer 18

They’re important for versioning

Question 19

Define Metadata

Answer 19

Data about data you’re storing

Question 20

Access control lists/Torrent via ________?

Answer 20

Subresources

Question 21

How does data consistency work for S3?

Answer 21

• Read after write consistency for PUTS of new objects (if you write a new file & read it immediately afterwards, you will be able to view that data)
• Eventual consistency for overwrite PUTS and DELETES (can take some time to propagate - if you update an EXISTING file or delete a file and read it immediately, you may get the older version)

Question 22

Amazon guarantees __________ for S3.

Answer 22

Amazon guarantees 99.999999999% durability for S3 information (remember: 11 x 9s)

Question 23

Name the four S3 features:

Answer 23

1. Tiered storage available
2. Lifecycle management
3. Versioning
4. Secure your data using Access Control Lists & Bucket Policies

Question 24

How many S3 Storage Classes are there?

Answer 24

There are 7 storage classes - 7th is S3 Outposts

Question 25

Name the six S3 Storage classes:

Answer 25

1. S3 Standard 2. S3 - IA (Infrequent Accessed) 3. S3 One Zone - IA 4. S3 Intelligent tiering 5. S3 Glacier 6. S3 Glacier Deep Archive

Question 26

Things you'll pay for in using S3:

Answer 26

- Storage - Requests - Storage management pricing - Data Transfer Pricing - Transfer Acceleration - Cross Region Replication pricing

Question 27

Define Transfer Acceleration:

Answer 27

Enables fast, easy, & secure transfer of files over long distances.

Question 28

What does Cross Region Replication do?

Answer 28

Duplicates Buckets into other regions

Question 29

True or False - Buckets share a common namespace

Answer 29

True

Question 30

How can bucket access be restricted?

Answer 30

Via Bucket policy, object policy, & IAM policies

Question 31

You can use S3 to host _______ websites?

Answer 31

Static as in .html - websites that require database connections such as Wordpress, etc. cannot be hosted on S3

Question 32

True or False - Entire S3 Buckets can't be made public.

Answer 32

False. You can use Bucket policies to make them public.

Question 33

How does S3 scaling work?

Answer 33

Automatically. Many enterprises will put static websites on S3 when they think there is going to be a large number of requests - think new movie previews online.

Question 34

What does CDN stand for?

Answer 34

Content Delivery Network

Question 35

Answer: This is the location where content will be cached. (hint: this is separate to an AWS region/AZ)

Answer 35

Question: What is an Edge Location

Question 36

Answer: Where all the files that the CDN will distribute.

Answer 36

Question: What is an Origin

Question 37

Answer: This is the name given the CDN which consists of a collection of Edge Locations.

Answer 37

Question: What is Distribution

Question 38

A virtual server in the cloud is referred to as _______

Answer 38

EC2

Question 39

What does EC2 stand for?

Answer 39

Elastic Cloud Compute

Question 40

How many pricing models are there for EC2?

Answer 40

Four

Question 41

What are the four EC2 pricing models?

Answer 41

on-demand, reserved, spot, and dedicated hosting

Question 42

Answer: A virtual hard disk that EC2 uses.

Answer 42

Question: What is an EBS?

Question 43

Solid-State Drives (SSDs) come in what forms?

Answer 43

1. General Purpose SSD (GP2) 2. Provisional IOPS SSD (IO1) 3. Magnetic