> For the complete documentation index, see [llms.txt](https://digitalgarden.batamladen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://digitalgarden.batamladen.com/notes/certificates/az-900/fundamental-cloud-concepts/cloud-benefits.md).

# Cloud Benefits

The 7 benefits are:

* High Availability & Scalability
* Reliability & Predictability
* Security, governance & manageability

 

***

## Hight Availability & Scalability

### What is availability?

The ability that allows a computer system to continue functioning even if disrupted.

### What is scaling?

The ability to increase the resources to meet the demands.

**On-prem scaling:**

If our website hosted on a server goes viral, as more ppl visit it from different areas, our server can crash. To meet the demand we need to "add a new server" witch costs time + money.

<figure><img src="https://2490252025-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUwIKQPujWqWSVFxQaX98%2Fuploads%2FpuowSrFzMaiYsbxjGKr8%2FScreenshot%202026-04-06%20125857.png?alt=media&amp;token=f9e4ebd2-fcda-4d09-bc78-09c397d5dab1" alt=""><figcaption></figcaption></figure>

**Cloud scaling:**

If our website hosted on the cloud goes viral, as more ppl visit it from different areas, we can indeed just "add a server/vm" in just a few clicks. Additionaly we would use a load balancer so it redirects the users from different locations to the right server so they do not face high latency.

<figure><img src="https://2490252025-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUwIKQPujWqWSVFxQaX98%2Fuploads%2FxJGwGOZlWrUkC0gdwS60%2FScreenshot%202026-04-06%20130117.png?alt=media&amp;token=c70bd160-d4eb-4404-87aa-e54abbcbc758" alt=""><figcaption></figcaption></figure>

Also if the demand goes down we don’t want to pay more for the additional resources, we can just bring them down to the right amount and play less.

&#x20;

#### Horizontal vs Vertical Scaling

<figure><img src="https://2490252025-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUwIKQPujWqWSVFxQaX98%2Fuploads%2F02bicTLFEpy2hGq1QClm%2FScreenshot%202026-04-06%20130445.png?alt=media&amp;token=af4a24c3-058f-472b-84e1-ef72b3b8eacc" alt=""><figcaption></figcaption></figure>

***

## Reliability & Predictability

**What is reliability?**

The ability to recover from failures and disasters and continue to function.

&#x20;

**Predictable Performance**

You will always have consistent performance within your service or app, all the time.

This is achived by alvays having resources. (horizontal scailing, load balancers..)

&#x20;

**Predictable Costs**

The ability to accurately track and forecast costs.

Achived by tools that calculate cost.

&#x20;

***

## Security, Governance & Manageability

### What is security?

Your cloud vendor will provide solutions to meet your security needs.

Provided solutions to meet your security needs.

<figure><img src="https://2490252025-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUwIKQPujWqWSVFxQaX98%2Fuploads%2FGryUhYVOZNiMC9TcqkhA%2FScreenshot%202026-04-06%20132010.png?alt=media&amp;token=0130eb33-f184-4c92-9084-723ab4915c1d" alt=""><figcaption></figcaption></figure>

### What is governance?

Standards and complience enforcement.

It’s a varaety of tools provided by the cloud vendor that provides us with essential standard structure and automation tool to effectively manage our resources

&#x20;

Some of the automated enforcement tools are:

* Encryption standards
* Location Restrictions

With this we can esaly meet the corporate standards or goverement requrements

&#x20;

### Manageability

&#x20;

We have managability... :

* ...Of the cloud
* ...In the cloud

managability of the cloud\
Is how you (automatically) control your cloud resources

managability in the cloud\
Is how you interact with the resources

&#x20;

***

<figure><img src="https://2490252025-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUwIKQPujWqWSVFxQaX98%2Fuploads%2FuxAl0UNIDVNZCCylUr21%2FScreenshot%202026-04-06%20133228.png?alt=media&amp;token=6aba5a07-75fd-4236-ad4a-b11d313e4cfc" alt=""><figcaption></figcaption></figure>


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