## AZ-900

<details>
<summary>What is cloud computing?</summary><br><b>

[Wikipedia](https://en.wikipedia.org/wiki/Cloud_computing): "Cloud computing is the on-demand availability of computer system resources, especially data storage (cloud storage) and computing power, without direct active management by the user"
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<details>
<summary>What types of clouds (or cloud deployments) are there?</summary><br><b>

  * Public - Cloud services sharing computing resources among multiple customers
  * Private - Cloud services having computing resources limited to specific customer or organization, managed by third party or organizations itself
  * Hybrid - Combination of public and private clouds
</b></details>


<details>
<summary>What is Azure Firewall?</summary><br><b>

Azure Firewall is a cloud-native and intelligent network firewall security service that provides the best of breed threat protection for your cloud workloads running in Azure.
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