intro to cloud

Question 1

CPU

Answer 1

central processing unit

Question 2

Server

Answer 2

A server is a computer that provides resources or services to other computers over a network.

Question 3

AMI

Answer 3

Amazon machine image

Question 4

EC2

Answer 4

Amazon Elastic Compute Cloud

AWS Cloud core service that offers computing capabilities.

Question 5

what is a virtual machine

Answer 5

a software based computer
virtual because it isn’t on a computer
a vm is software based, it runs inside a physical computer

Question 6

what does a data centre hold

Answer 6

servers
storage devices
cooling equipment
uninterruptible power supplies

Question 7

What is cloud computing

Answer 7

Cloud computing is the on-demand delivery of compute power, database, storage, applications, and other IT resources. These resources are delivered through a cloud services platform via the internet, with pay-as-you-go pricing.

Question 8

What is traditional cloud computing ?

Answer 8

Infrastructure as hardware.

Traditional cloud computing is having to have your own space, staff, physical security, planning, and capital expenditure to maintain and keep it running.

Question 9

What are the benefits of cloud computing

Answer 9

It is infrastructure as software

With cloud computing, you can also select the services that best match your needs. It gives you flexibility, with a wide range of choices and the ability to change your configuration when you want. All of these services are provided on a secured infrastructure.

Question 10

Cloud service models

Answer 10

Infrastructure as a service (IasS)
Platform as a service (PaaS)
Software as a service (Saas)

Question 11

Cloud infrastructure

Answer 11

low costs
no upfront investment
speed agility
global reach on demand

Question 12

Private Cloud

Answer 12

Large initial purchase 
Labour patches
System administration
fixed capacity 
limited geographical regions

Question 13

what can you do in the cloud?

Answer 13

application hosting
Websites
databases

Question 14

How does cloud computing benefit you

Answer 14

Cloud computing gives you access to servers, storage, databases, and a broad set of application services over the internet.

Question 15

If you have a business, how can cloud computing benefit your busines

Answer 15

Cloud computing or cloud services providers (like AWS) provides rapid access to flexible and low-cost IT resources. With cloud computing, you don’t need to make large upfront investments in hardware. As a business owner, you do not need to purchase a physical location, servers, storage, or databases.

Question 16

IaaS

Answer 16

infrastructure as a service

you manage the server which can be physical or virtual and the operating system

Question 17

PaaS

Answer 17

platform as a service

someone else manages the underlying hardware and operation system

Question 18

SaaS

Answer 18

Software as a service
you manage your files but the service provider manages all data centres servers network units
your concern is only the software and how you want to use it

Question 19

Amazon instances

Answer 19

Instance types comprise varying combinations of CPU, memory, storage, and networking capacity

Question 20

what is a web service

Answer 20

A web service is any piece of software that makes itself available over the internet or on private (intranet) networks.

Question 21

how is compute charged by amazon

Answer 21

charged by hr/second

Question 22

how is storage charged on amazon

Answer 22

charged by gb used

Question 23

what are aws infrastructure features

Answer 23

Elastic and Scaleable This means resources can dynamically adjust to increases or decreases in capacity requirements. It can also rapidly adjust to accommodate growth.

secondly the infrastructure is fault tolerant. which means it has built-in component redundancy which enables it to continue operations despite a failed component.