Cloud Concepts

Question 1

What is Cloud Computing?

Answer 1

The on-demand delivery of IT resources over the Internet, with pay-as-you-go pricing.

Question 2

What are the general benefits of Cloud Computing over a traditional IT setup?

Answer 2

> Flexibility: Change quickly
Cost effective: pay as you go for what you use
Scalability: Easy to grow your service
Agility: Able to build whatever you want and deploy quickly
Elasticity: Scale up and down resources to match demand
Cost savings: No need for data centres plus economy of scale
Deploy globally in minutes
Highly available and fault tolerant (bcos multiple data centers)

Question 3

What are the three types of cloud computing?

Answer 3

• IaaS: Infrastructure as a Service
• PaaS: Platform as a Service
• SaaS: Software as a Service

Question 4

What are the three deployment models for cloud computing?

Answer 4

> Cloud (all parts)
Hybrid (connect some local infrastructure with some cloud)
On-premises

Question 5

What are the different components of AWS global infrastructure?

Answer 5

> Regions
Availability Zones
Data Centers
Edge Locations

Question 6

What is an AWS Region?

Answer 6

A geographical location consisting of two or more Availability Zones.

Question 7

What is an Availability Zone?

Answer 7

A location with one or more Data Centers.

Question 8

What kind of considerations would you make in choosing an AWS Region?

Answer 8

> Available services
Compliance (with data governance and law)
Proximity
Pricing

Question 9

In the Shared Responsibility Model, who is responsible for customer data?

Answer 9

You

Question 10

In the Shared Responsibility Model, what is AWS responsible for?

Answer 10

The software, and hardware supporting their service. Security “of” the cloud.

Question 11

If you only want to manage applications and data, what type of service should you use?

Answer 11

PaaS (Platform as a Service)

Question 12

What are the three things you pay for with AWS Cloud Computing?

Answer 12

> Compute
Storage
Transfer of data out of the cloud

Question 13

A company would like to benefit from the advantages of the Public Cloud but would like to keep sensitive assets in its own infrastructure. Which deployment model should the company use?

Answer 13

Hybrid cloud

Question 14

What does IAM stand for?

Answer 14

Identity Access Management.

It’s the service to create users, groups, roles, and manage permissions (both for people and for services)

Question 15

What defines the privileges for roles?

Answer 15

A JSON document called a “policy”

Question 16

What are the three ways for users to access AWS?

Answer 16

> AWS Management Console
AWS CLI
AWS Software Developer Kits

Question 17

What is AWS CloudShell?

Answer 17

An in browser Shell/CLI tool you can use in the browser instead of downloading the AWS CLI.

Question 18

What is a proper definition of IAM Roles?

Answer 18

An IAM entity that defines a set of permissions for making AWS service requests, that will be used by AWS services.

Question 19

What are the two IAM Security Tools?

Answer 19

• IAM Credentials Report

* IAM Access Advisor

Question 20

What is S3 Transfer Acceleration?

Answer 20

When a file is uploaded first to a close Edge Location (fast) using public www, then uses internal private AWS to transfer to the S3 bucket placed far away.

Question 21

What is AWS Global Accelerator?

Answer 21

AWS Global Accelerator is a networking service that sends your user’s traffic through Amazon Web Service’s global network infrastructure.

Question 22

What is the key difference between CloudFront and Global Accelerator?

Answer 22

Cloudfront serves content at the Edge Location (so is good for cacheable content, like static websites that only need a once-a-day update), whereas Global Accelerator proxies packets.

Question 23

What is Amazon Kinesis?

Answer 23

Amazon Kinesis makes it easy to collect, process, and analyze real-time, streaming data so you can get timely insights and react quickly to new information. Kinesis offers four services: Data Firehose, Data Analytics, Data Streams, Video Streams.

Question 24

What does AWS X-Ray do?

Answer 24

AWS X-Ray helps developers analyze and debug production, distributed applications, such as those built using a microservices architecture.

Question 25

What is the AWS Personal Health Dashboard?

Answer 25

AWS Personal Health Dashboard provides alerts and remediation guidance when AWS is experiencing events that may impact you.

Question 26

What is Amazon CloudWatch?

Answer 26

Amazon CloudWatch is a monitoring service for AWS cloud resources and the applications you run on AWS. You can use Amazon CloudWatch to collect and track metrics, collect and monitor log files, and set alarms.