# Questions - Monitor and back up Azure resources
###### tags: `az-104` `azure`

## What can a recovery vault backup

1. It requires the backup source in the same region as the recovery vault
2. Only file share can be backup in the recovery backup vault, no blob data

## How to backup/restore windows VM

To backup/restore a Windows VM, the installation of Microsoft Azure Recovery Services Agent is a must

## How alert works

Requires events in a Log Analytics workspace, then alert can be configured based on the Azure log Analystics workspace

## Application Insight

#### Funnel

Understanding the customer experience is of the utmost importance to your business. If your application involves **multiple stages**, you need to know if most customers are progressing through the entire process, or if they are ending the process at some point. The progression through a series of steps in a web application is known as a funnel. You can use Azure Application Insights Funnels to gain insights into your users, and monitor step-by-step conversion rates.

#### Cohort

A cohort is a set of users, sessions, events, or operations that have **something in common**. In Azure Application Insights, cohorts are defined by an analytics query. In cases where you have to analyze a specific set of users or events **repeatedly**, cohorts can give you more flexibility to express exactly the set you’re interested in.

#### Impact

Impact analyzes how load times and other properties influence conversion rates for various parts of your app. To put it more precisely, it discovers how any dimension of a page view, custom event, or request **affects** the usage of a different page view or custom event.

#### Retention

The retention feature in Azure Application Insights helps you analyze how many users **return to your app**, and how often they perform particular tasks or achieve goals. For example, if you run a game site, you could compare the numbers of users who return to the site after losing a game with the number who return after winning. This knowledge can help you improve both your user experience and your business strategy.

#### User Flows

The User Flows tool visualizes how users **navigate** between the pages and features of your site. It's great for answering questions like:

- How do users navigate away from a page on your site?
- What do users click on a page on your site?
- Where are the places that users churn most from your site?
- Are there places where users repeat the same action over and over?

## How to replace restore a VM

Require the VM to be in the state of **deallocated** or **stopped**

Refer to https://docs.microsoft.com/en-us/azure/backup/backup-azure-arm-restore-vms#replace-existing-disks

## Azure SQL database backup policy

Azure SQL database is Azure fully managed PAAS service, it includes auto patching, monitoring and backup