Azure Fundamentals — Exam AZ900
A reference before exam
Why Azure?
- be ready for future
- build on ur terms
- trust ur network
- operate hybrid seamlessly
Market place — partner solutions optimized to run in azure, over 8000 solutions so far
Infra —
uses virtualization
os and hardware separated using hypervisor
Each server rack is attached with fabric controller software
Multiple server racks are connected through network switch
Orchestrator is responsible to get the requests through web api and sends it to switch that chooses best rack
Once the request reaches server, it will create the requested resource in a vm
10 broad categories:
compute — scale compute
network — on prem experience, vpn, load balancing
storage — disk, file, blob, archive, queue
mobile — scale application, native experience, xamarin and use cognitive services
databases — db
iot — connect, monitor, manage iot assets and use
web — scale, build, deploy services
big data — analyse big data and make sense
ai — build, deploy models
devops — ci/cd
differences between categories of cloud services
differences between types of cloud computing
cloud models / types of cloud computing — public, private, hybrid
cloud services / categories of cloud services — IaaS, PaaS, SaaS
CapEx vs OpEx
Cloud computing is a consumption-based model
Resources
Resource groups
Subscriptions
Management groups
Resource manager — deploy and manage services; takes requests, authenticates and authorizes and does the respective action; locking, RBAC, read only access controls
resource manager template is JSON
A region is a geographical area with multiple datacenters
AZ for HA
Region pair
Zonal services: You pin the resource to a specific zone (for example, VMs, managed disks, IP addresses).
Zone-redundant services: The platform replicates automatically across zones (for example, zone-redundant storage, SQL Database).
Azure Resource Manager is the deployment and management service for Azure.
It provides a management layer that enables you to create, update, and delete resources in your Azure account. You use management features like access control, locks, and tags to secure and organize your resources after deployment.
Azure account, management group, subscription, resource group, resource
Management groups
1000 subscriptions
6 levels deep
1 parent, multiple children
all subscriptions and management groups are within a single hierarchy in each directory
