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pages/Learning ___ Azure ___ AZ-900%3A Microsoft Azure Fundamentals.md
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@ -4,40 +4,95 @@
| Describe cloud concepts | 25-30% |
| Describe Azure architecture and services | 35-40% |
| Describe Azure management and governance | 30-35% |
- ### Introduction to cloud computing
- Define cloud computing.
- Compute Power
- Storage
- Pay only ressources you use
- Upkeep is done by cloud provider
- Describe the shared responsibility model.
- Cloud Provider: Physical security, power, cooling, and network connectivity are the responsibility
- Consumer: responsible for the data and information stored in the cloud.
- IAAS (Infrastructure)-> PAAS (Platform) -> SAAS (Software)
- ![Diagram showing the responsibilities of the shared responsibility model.](https://learn.microsoft.com/en-us/training/wwl-azure/describe-cloud-compute/media/shared-responsibility-b3829bfe.svg){:height 231, :width 700}
- Define cloud models, including public, private, and hybrid.
- | **Public cloud** | **Private cloud** | **Hybrid cloud** |
| ---- | ---- | ---- |
| No capital expenditures to scale up | Organizations have complete control over resources and security | Provides the most flexibility |
| Applications can be quickly provisioned and deprovisioned | Data is not collocated with other organizations’ data | Organizations determine where to run their applications |
| Organizations pay only for what they use | Hardware must be purchased for startup and maintenance | Organizations control security, compliance, or legal requirements |
| Organizations don’t have complete control over resources and security | Organizations are responsible for hardware maintenance and updates | |
- Azure ARC
- Manage Cloud environment
- Identify appropriate use cases for each cloud model.
- Describe the consumption-based model.
- Capital expenditure (CapEx)
- upfront one time expenditure
- Operational expenditure (OpEx)
- spending money on services or products over time
- Cloud computing is here
- Compare cloud pricing models.
- pay-as-you-go pricing model
- ### Describe the benefits of using cloud services
- Describe the benefits of high availability and scalability in the cloud.
- uptime (or availability)
- demand (or scale)
- each Service has own SLA
- Describe the benefits of reliability and predictability in the cloud.
- Describe the benefits of security and governance in the cloud.
- Describe the benefits of manageability in the cloud.
- ## Cloud Concepts
- ### Introduction to cloud computing
- Define cloud computing.
- Compute Power
- Storage
- Pay only ressources you use
- Upkeep is done by cloud provider
- Describe the shared responsibility model.
- Cloud Provider: Physical security, power, cooling, and network connectivity are the responsibility
- Consumer: responsible for the data and information stored in the cloud.
- IAAS (Infrastructure)-> PAAS (Platform) -> SAAS (Software)
- ![Diagram showing the responsibilities of the shared responsibility model.](https://learn.microsoft.com/en-us/training/wwl-azure/describe-cloud-compute/media/shared-responsibility-b3829bfe.svg){:height 231, :width 700}
- Define cloud models, including public, private, and hybrid.
- | **Public cloud** | **Private cloud** | **Hybrid cloud** |
| ---- | ---- | ---- |
| No capital expenditures to scale up | Organizations have complete control over resources and security | Provides the most flexibility |
| Applications can be quickly provisioned and deprovisioned | Data is not collocated with other organizations’ data | Organizations determine where to run their applications |
| Organizations pay only for what they use | Hardware must be purchased for startup and maintenance | Organizations control security, compliance, or legal requirements |
| Organizations don’t have complete control over resources and security | Organizations are responsible for hardware maintenance and updates | |
- Azure ARC
- Manage Cloud environment
- Identify appropriate use cases for each cloud model.
- Describe the consumption-based model.
- Capital expenditure (**CapEx**)
- upfront one time expenditure
- Operational expenditure (**OpEx**)
- spending money on services or products over time
- Cloud computing is here
- Compare cloud pricing models.
- pay-as-you-go pricing model
- ### Describe the benefits of using cloud services
- Describe the benefits of high availability and scalability in the cloud.
- **uptime** (or availability)
- **demand** (or scale)
- Scalability refers to the ability to adjust resources to meet demand
- **vertical**
- increasing or decreasing the capabilities of resources (i.e. RAM or CPU)
- **horizontal**
- adding or subtracting the number of resources (i.e. VMs or containers)
- each Service has own SLA
- Describe the benefits of reliability and predictability in the cloud.
- **Reliability** is the ability of a system to recover from failures and continue to function
- decentralized design and global scale across data centers
- **Predictability**
- **performance** predictability
- Autoscaling, load balancing, and high availability
- **cost** predictability
- track cost in real time
- Total Cost of Ownership (TCO) or Pricing Calculator
- Describe the benefits of **security** and **governance** in the cloud.
- Set templates
- update all your deployed resources to new standards
- Cloud-based auditing
- handle distributed denial of service (DDoS)
- Describe the benefits of **manageability** in the cloud.
- Automatically scale resource
- Deploy resources based on (preconfigured) templates
- Monitor health and replace failing resources
- Automatic alerts
- Use
- Web Portal, CLI, APIs, PowerShell
- ### Describe cloud service types
- Describe Infrastructure as a Service (IaaS).
- renting the hardware in a cloud datacenter (i.e. Hetzner)
- **Scenarios**
- Lift-and-shift migration
- Test an development
- Describe Platform as a Service (PaaS).
- maintain the operating systems, databases, and development tools
- **Scenarios**
- Development framework
- Analytics or business intelligence
- Describe Software as a Service (SaaS).
- Use Maintained Software
- **Scenarios**
- Email and messaging.
- Business productivity applications.
- Finance and expense tracking.
- Identify appropriate use cases for each cloud service (IaaS, PaaS, SaaS).
- ## Azure architecture and services
- ### Describe the core architectural components of Azure
- ![Diagram showing the different levels of account scope.](https://learn.microsoft.com/en-us/training/wwl-azure/describe-core-architectural-components-of-azure/media/account-scope-levels-9ceb3abd-a2d45a13.png)
-
- Describe Azure regions, region pairs, and sovereign regions.
-
- Describe Availability Zones.
- Describe Azure datacenters.
- Describe Azure resources and Resource Groups.
- Describe subscriptions.
- Describe management groups.
- Describe the hierarchy of resource groups, subscriptions, and management groups.
-