Cloud Concepts (CLF-C01) (CloudAcademy)

Question 1

What is virtualization?

Answer 1

It allows the possibility of having multiple virtual machines, each running essentially a separate OS and applications, installed on 1 physical server

Shared hardware is achieved through a hypervisor which is a piece of software used to create the virtualized environment allowing for multiple VMs to be installed on the same hsot

Question 2

Benefits of Virtualization

Answer 2

Reduced capital expenditure - less hardware is required as you have the ability to provision multiple VMs on 1 host

Reduced Operating Costs - There is less hardware, less space, power and cooling required within your datacenter

Smaller footprint - Less space is required to house your server hardware

Optimization of Resources - In a cloud environment, everyone can benefit from virtualization, from the cloud vendor to the customer

Question 3

Compute

Answer 3

Objects provide the brains to process the workload

Classic Environment comparison: think of hardware devices with CPUs and RAM, and how they work in a classic on premise environment

Question 4

Storage

Answer 4

Allow you to save and store your data

Any resource that allows you to save your data in the cloud is classed as a storage resource

Classic Environment comparison: In a typical environment these would be seen as your server hard disks or network attached storage (NAS) and high speed storage area network (SAN)

Question 5

Databases

Answer 5

Allow you to store structured sets of data used by your application

Question 6

Network

Answer 6

Provide the connectivity allow all other resources to communicate with each other

Question 7

Public Cloud

Answer 7

A vendor makes available the use of shared infrastructure, including:

-Compute
-Storage
-Database
-Network resources

It can be provisioned on demand and typically accessed over the internet for public usage
The consumer will never see the hardware or know the exact physical location of their data

Consumers can specify the geographic region in which it resides to aid with data access latency based on where the end users are located

The cloud vendor provides all the backend and physical maintenance of the physical location services such as power cool and hardware failures

You can access your services on the Public Cloud from anywhere with an internet connection