Chapter 1. Describe the benefits of high availability and scalability in the cloud
High Availability – Maximum uptime regardless of disruptions or events that may occur. Availability is measured in “Nines”.
| Availability | Downtime (Per Year) |
| 99% | 3.65 Days |
| 99.9% | 8.76 Hours |
| 99.99% | 52.6 Mins |
| 99.999% | 5.25 Mins |
Scalability – The ability to adjust resources to meet demand. Scaling comes in two varieties, vertical scaling and horizontal scaling.
Vertical Scaling – Increasing or decreasing the capabilities of resources.
Horizontal Scaling – Adding or subtracting the number of resources.
Chapter 1 Study Resources:
Chapter 2. Describe the benefits of reliability and predictability in the cloud
Reliability – The ability of a system to recover from failures and continue to function.
Predictability – Performance and cost predictability of Cloud resources
| Performance Predictability | Cost Predictability |
| Predicting the resources needed to deliver a positive experience for your customers. | Predicting or forecasting the cost of the cloud spend. |
| Autoscaling | Azure Monitor |
| Load balancing | Total Cost of Ownership |
| High availability | Pricing Calculator |
Chapter 2 Study Resources:
Chapter 3. Describe the benefits of security and governance in the cloud
Security and Governance – Measures designed to protect cloud-based resources.
Several Benefits include:
- Centralized Security Management (Microsoft Defender for Cloud, Iot, Endpoint, O365, EASM)
- Advanced Threat Protection
- Compliance and Regulatory Frameworks
- Data Protection and Disaster Recovery
- Identity and Access Management
- Governance and Policy Enforcement
Chapter 3 Study Resources:
Chapter 4. Describe the benefits of manageability in the cloud
| Management of the cloud | Management in the cloud |
| Automatically scale resource deployment based on need. | Through a web portal |
| Deploy resources based on a preconfigured template, removing the need for manual configuration. | Using a command line interface |
| Monitor the health of resources and automatically replace failing resources. | Using APIs |
| Receive automatic alerts based on configured metrics, so you’re aware of performance in real time. | Using PowerShell |
Chapter 4 Study Resources:
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