Describe Cloud Concepts

Question 1

AZ-900 Exam Overview

(3 sections & contents)

Answer 1

• Concepts (25-30%)
  
  • define
  • benefits
  • service types
• Architecture & Services (35-40%)
  
  • components
  • compute
  • networking
  • storage
  • identity, access, security
• Management & Governance (30-35%)
  
  • cost mgmt.
  • gov & compliance tools
  • deployment
  • monitoring tools

Question 2

What are the VM shared respon. bet. Azure and the client?

Answer 2

• Azure manages physical
• Client manages everything else

Question 3

What are the app service shared respon. bet. Azure and the client?

Answer 3

VM responsibilities + operating system patches

Question 4

What are the SaaS respon. bet. Azure and the client?

Answer 4

Azure manages VMs, OS, Networking/Firewalls, Application Settings

Question 5

What is the private cloud software offered by Azure?

Answer 5

Stack HCI

Question 6

Table Key Comparisons of different cloud models

Answer 6

• pulic: no capex, pay for use
• private: complete control - security, resources, must purchase hardware, maintainence and updates
• hybrid: flexibility of both

Question 7

Benefits of Cloud

Answer 7

1. high availability: services running for long periods of time
2. scalability: add or remove resources
3. elasticity: automatic scability
4. Reliability: failure recovery
5. performance & cost predictability
6. governance: templates, auditing, updates and patches
7. security: client or azure managed
8. resource management: health monitors, alerts, deloy & scaling
9. environment management: command line, web portal

Question 8

Horizontal v. Vertical Scaling

Answer 8

1. horizontal: adding additional resources
2. vertical: processing power increases