Module 2 : Cloud Computing Framework

Question 1

Five Essential Cloud Characteristics

Answer 1

Self-Service - organizations can provision and manage servers and resources though a single portal or API.
Broad accessibility - services delivered consistently. Available and accessible through standard platforms.
Shared Resources - resources are pooled for maximum efficiency and then shared across may orgs in a tenant model.
Elasticity - scale up or down based on usage.
Measure or metered consumption- Usage calculated based on what the user consumes. Pay-as-you-go model.

Question 2

Three key delivery methods

Answer 2

IaaS - foundation IT services with core cloud
Pass - Applications to build and run environments. Automatic adjustment to organisation’s demand
SaaS - Direct access to applications capabilities. Resource Management hidden from users. (E.g. office365)

Question 3

Cloud service delivery method overview

Answer 3

On Premise - Application,data,runtime,middleware,os,virtualisation,servers,storage,network. (You)

IaaS - Application,data,runtime,middleware,os (You) Virtuliation,servers,storage,network (cloud provider)
PaaS - Application,data (You), Runtime, Middleware, virtualisation,servers,storage,network (cloud provider)
SaaS - Application,data,runtime,middleware,os,virtualisation,servers,storage,network. (Cloud provider)

Question 4

Cloud Types

Answer 4

Public - available to general public or large industry group. Owned by organisation selling cloud services.

Hybrid - Mix of one or more (public, community, private). Binds tougher unique entities through standard tech

Community Cloud - shared by several organisations. Supports specific communities with shared concerns

Private Cloud - operated solely for an organisation. Can be managed by the organisation or a third party. Can exist on of premises

Question 5

Multi Cloud

Answer 5

The mixing of platforms between several types of clouds.

Using of public clouds using enterprise IT to hide the cloud.