Cloud computing classification/azure classification
Cloud Computing can be classified as two main models
- Deployment model
- Public Cloud
- Private Cloud
- Hybrid Cloud
- Service Model
IaaS: Infrastructure as a service eg: VMs
PaaS: Platform as a service eg: SQL Instance, Web Apps
SaaS: Software as a service eg: O365,Gmail
Microsoft Azure is supporting all the above models
Architecture of Azure
- Azure Service management/Classic – legacy
- Azure Resource Manager
- Azure VMs
- Can be created through by portal as well using the PS script.
- Can create the VM depends on the requirement with the Sku and can scale at any time we want.
- All the VM images will be available in Azure market place also available Linux VM images.
- Microsoft will manage the disk and the network if we are select the managed service disk.
- Microsoft can give the 99.95 % SLA if we are configured the high availability option(Update,Fault domain).
- Storage account is the primary requirement of the VM creation and the storage account name should be globally unique since the endpoint can publish to the internet.
- Address space and the subnet is an integral part of Azure.
- In ARM we will be able to create Vnet to Vnet, Site to Site, point to site VPN.
- Express route and the VPN connectivity are the two possible way to connect the Azure Infra apart from the Https traffic
- Content Delivery Network(CDN) is helpful for the web apps to store the metadata of high memory files.
- We can extend the on premises AD infra to azure with azure AD
- AAD connect is helping us to sync the on premises user info to Azure AD
- MFA can be enable through Azure AD