AWS overview

Question 1

5 principles of cloud computing?

Answer 1

On-demand self-service - Provision and terminate using a UI/CLI without human interaction

Broad network access - Access services over any networks, on any devices, using standard protocols and methods

Resource pooling - Economies of scale, cheaper service

Rapid elasticity - Scale up (OUT) an Down (IN) automatically in response to system load

Measured service -usage is measured, pay for what you consume

Question 2

What are the 4 different types of cloud?

Answer 2

Private cloud - The cloud infrastructure is provisioned for exclusive use by a single organization
comprising multiple consumers (e.g., business units). It may be owned, managed, and
operated by the organization, a third party, or some combination of them, and it may exist
on or off premises.

Multi-Cloud - using more than 1 public cloud

Public cloud - The cloud infrastructure is provisioned for open use by the general public. It may be
owned, managed, and operated by a business, academic, or government organization, or
some combination of them. It exists on the premises of the cloud provider.

Hybrid cloud - The cloud infrastructure is a composition of two or more distinct cloud
infrastructures (private, community, or public) that remain unique entities, but are bound
together by standardized or proprietary technology that enables data and application
portability (e.g., cloud bursting for load balancing between clouds).

Question 3

What permission does an AMI have?

Answer 3

Public Access, Owner Only, Specific AWS Accounts

Question 4

What is not stored in an AMI?

Boot volume, Data volume, AMI permissions, Block Device Mapping, Instance Settings, Network Settings

Answer 4

Instance Settings, Network Settings

Question 5

What is true of S3?

public service
private service
web scale block storage system
object storage system
buckets can store 100TB of data
can store an unlimited amount of data

Answer 5

public service
object storage system
can store an unlimited amount of data

Question 6

Definition of high availability?

Answer 6

A system which maximises uptime

Question 7

Which cloud metric is manually setup in Cloudwatch?

Answer 7

Memory utilisation on EC2 instance