MSDEVBUILD / azure

Azure Virtual Desktop

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Your desktop streams from Azure like a video, so the data never leaves the cloud.

😟 THE PROBLEM

Contractors need company apps on their own laptops, but data must not be stored there.

😊 THE SOLUTION

Stream Windows desktops from Azure Virtual Desktop.

  • Shipping company laptops✓ Use any device to connect
  • Data copied onto personal PCs✓ Data stays in Azure
  • One VM per user is expensive✓ Windows multi-session shares VMs
🛠️ Solved with: Azure Virtual Desktop
Module 2: Architecture & Services ⏱ 6 min read Updated 11 Nov 2026

Quick answer

Azure Virtual Desktop is a desktop and application virtualisation service that runs Windows desktops and apps in Azure. Users connect from almost any device, while company data stays in the cloud. It supports Windows multi-session, so several users can share one VM, which lowers cost.

Exam objective: 2.2.2 Describe virtual machine options, including Azure virtual machines, Azure Virtual Machine Scale Sets, availability sets, and Azure Virtual Desktop. (Skills measured as of July 20, 2026)

Start with a question

A contractor needs company apps for three months on their own laptop. Do you post them a company PC?

Shipping laptops is slow and risky. With Azure Virtual Desktop, they open a window on their own device and get a full company desktop that lives in Azure.

Explain it like I’m 10

The technical explanation

Azure Virtual Desktop runs session host VMs in Azure and streams desktops or individual apps to users through the Remote Desktop client or a browser. Key features:

  • Windows multi-session (Windows 10/11 Enterprise multi-session) for multiple users per VM.
  • Identity with Microsoft Entra ID, plus MFA and Conditional Access.
  • Data stays in Azure; the user’s device only receives pixels.
  • Autoscaling host pools to save money outside working hours.

Real-world business scenario

Enterprise

A call centre company

The problem
300 agents needed to work from home on personal PCs, but customer data could not be stored on those devices.
What they used
Azure Virtual Desktop with multi-session hosts, Entra ID with MFA, and autoscaling.
Why that choice
Desktops stream from Azure, so data never leaves the cloud; multi-session reduced VM count.
The result
Agents worked remotely within two weeks, and compliance was maintained.

When to use it and when not to

✓ Use it when…

  • Remote or temporary workers on personal devices.
  • Secure access to sensitive apps.
  • Legacy Windows apps for users on Mac or tablets.

✕ Think twice when…

  • Graphics-heavy offline work with poor internet connections.
Ready for more?The full lesson adds the technical explanation, when to use it, interview questions and revision notes.

Interview preparation

Say your answer out loud first, then open the model answer. Interviewers care more about your reasoning than the exact words.

Beginner What is Azure Virtual Desktop?

Model answer

It is a service that gives users a Windows desktop and apps running in Azure. They can connect from a laptop, tablet or browser, and company data stays in the cloud rather than on their device.

Intermediate What are the security benefits of Azure Virtual Desktop?

Model answer

Data stays in Azure, not on personal devices, so a lost laptop does not leak files. Access is protected with Microsoft Entra ID, multifactor authentication and Conditional Access, and session hosts do not need to be exposed to the internet.

Experienced developer How does multi-session affect AVD costs?

Model answer

Windows multi-session lets several users share one session host VM, so you need fewer VMs than one-per-user. Combined with autoscaling host pools that shut down hosts after hours, it can significantly cut compute costs for task workers.

Test yourself with exercises

3 original practice questions in the AZ-900 style. Pick your answers, then check them. You will see why each option is right or wrong. Score 75% or more and this topic is marked complete.

Question 1

Question 1 of 3

Remote staff need a Windows desktop and company apps from personal devices, and data must stay in Azure. Which service?

Question 2

Question 2 of 3

Which feature lets several users share one VM in Azure Virtual Desktop?

Question 3

Question 3 of 3

Where is company data stored when users work through Azure Virtual Desktop?

Quick revision

Key points

  • AVD runs Windows desktops and apps in Azure.
  • Users connect from many devices; data stays in the cloud.
  • Windows multi-session lets several users share one VM.
  • Secured with Entra ID, MFA and Conditional Access.

Important terminology

Desktop virtualisation
Running a user's desktop in a datacenter and streaming it to their device.
Windows multi-session
Windows 10/11 Enterprise editions that allow several users on one VM at once, available on Azure Virtual Desktop.
Host pool
A group of VMs that serve desktops to users.

Common mistakes

  • Thinking AVD installs apps on the user's own device.

Exam tips

  • "Users need a Windows desktop from any device, data must stay in Azure" = Azure Virtual Desktop.

Five quick revision questions

  1. 1.What does Azure Virtual Desktop deliver?Show

    Windows desktops and applications running in Azure.

  2. 2.Where does company data stay with AVD?Show

    In Azure, not on the user's device.

  3. 3.What is Windows multi-session?Show

    Several users sharing one Windows VM at the same time.

  4. 4.Name one AVD security feature.Show

    Entra ID sign-in with MFA and Conditional Access.

  5. 5.Name a good AVD use case.Show

    Contractors or remote staff using personal devices.

Official references

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