Cloud Concepts Flashcards
High Availability
core to cloud, add servers, scaling
Fault Tolerance
azure faults mitigated by azure
Scalability
scale out/ scale out - automatically via scale sets
Add in other section about scale sets
Elasticity
provides scalability, quick increasing.
DR
RTO/RPO - availability sets, availabilty zones, recovery plan
CapEx / OpEx
Capex - major investment - listed on co. balance sheet, Opex - Operational expenditure
Consumption based model
More resources consumed (low resources - low cost”
Shared Responsibility
more demo needed. Links in Lesson. Use cases
IaaS
infra, network, storage provided (e.g. VM) - management of OS etc. done by Azure. Use cases
PaaS
Iaas but also Middleware and Tools - need examples
Serverless
Functions - called via WebURL - called once then destroyed e.g. uploading photos. no traffic, no resource. example needed
SaaS
combination of IaaS and PaaS - complete managed service - e.g. O365 or Quickbooks. No maintenance and always get latest features.Use cases.
Cloud Computing
definition ?
Private Cloud
Azure software installed in own DC,
Public Cloud
public Azure subscription. No hardware, low monthly fees.
Hybrid Cloud
span of private and public. regulatory compliance (especially for MOD). On-premises also still an option. However does create complex infrastructure.
Compare and contrast 3 cloud types
TBD