Cloud Concepts

Question 1

High Availability

Answer 1

core to cloud, add servers, scaling

Question 2

Fault Tolerance

Answer 2

azure faults mitigated by azure

Question 3

Scalability

Answer 3

scale out/ scale out - automatically via scale sets

Add in other section about scale sets

Question 4

Elasticity

Answer 4

provides scalability, quick increasing.

Question 5

DR

Answer 5

RTO/RPO - availability sets, availabilty zones, recovery plan

Question 6

CapEx / OpEx

Answer 6

Capex - major investment - listed on co. balance sheet, Opex - Operational expenditure

Question 7

Consumption based model

Answer 7

More resources consumed (low resources - low cost”

Question 8

Shared Responsibility

Answer 8

more demo needed. Links in Lesson. Use cases

Question 9

IaaS

Answer 9

infra, network, storage provided (e.g. VM) - management of OS etc. done by Azure. Use cases

Question 10

PaaS

Answer 10

Iaas but also Middleware and Tools - need examples

Question 11

Serverless

Answer 11

Functions - called via WebURL - called once then destroyed e.g. uploading photos. no traffic, no resource. example needed

Question 12

SaaS

Answer 12

combination of IaaS and PaaS - complete managed service - e.g. O365 or Quickbooks. No maintenance and always get latest features.Use cases.

Question 13

Cloud Computing

Answer 13

definition ?

Question 14

Private Cloud

Answer 14

Azure software installed in own DC,

Question 15

Public Cloud

Answer 15

public Azure subscription. No hardware, low monthly fees.

Question 16

Hybrid Cloud

Answer 16

span of private and public. regulatory compliance (especially for MOD). On-premises also still an option. However does create complex infrastructure.

Question 17

Compare and contrast 3 cloud types

Answer 17

TBD