Azure Advisor
😟 THE PROBLEM
Bills grow and risks pile up, but nobody has time to review every resource.
😊 THE SOLUTION
Follow Azure Advisor’s personalised recommendations.
- Paying for idle VMs✓ Cost recommendations to resize or shut down
- No backups on critical servers✓ Reliability recommendations
- Security gaps✓ Security recommendations
Quick answer
Azure Advisor evaluates your deployed Azure resources and gives personalised recommendations to improve them. Recommendations are grouped into five categories: Reliability, Security, Performance, Operational Excellence and Cost. Each one explains the problem and how to fix it, and many can be fixed with one click.
Exam objective: 3.4.1 Describe the purpose of Azure Advisor. (Skills measured as of July 20, 2026)
Start with a question
What if a cloud expert reviewed your Azure every day and told you exactly what to fix?
That’s Azure Advisor, and it’s free.
Explain it like I’m 10
The technical explanation
| Category | Example recommendation |
|---|---|
| Reliability | Use availability zones; enable VM backup |
| Security | Enable MFA; fix vulnerabilities (from Defender for Cloud) |
| Performance | Upgrade a storage tier with throttling |
| Operational Excellence | Create Service Health alerts; follow naming and tagging |
| Cost | Resize or shut down underused VMs; buy reservations |
Real-world business scenario
A digital agency
- The problem
- The Azure bill kept growing and nobody had time to review every resource.
- What they used
- Azure Advisor cost and reliability recommendations reviewed every week.
- Why that choice
- Advisor pinpoints underused resources and risky configurations automatically.
- The result
- Several idle VMs were shut down and backups were enabled on critical servers.
When to use it and when not to
✓ Use it when…
- Regular health and cost reviews of deployed resources.
✕ Think twice when…
- Applying every recommendation blindly without context.
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 does Azure Advisor do?
Model answer
It looks at the resources I've already deployed and suggests improvements, like resizing an underused VM to save money or turning on backup to improve reliability.
Intermediate What are Azure Advisor's recommendation categories?
Model answer
Reliability, Security, Performance, Operational Excellence and Cost.
Experienced developer How would you operationalise Advisor recommendations?
Model answer
Review Advisor score regularly, assign recommendations to resource owners, set up Advisor alerts for new high-impact recommendations, export them to work tracking, and automate common fixes, such as shutting down idle dev VMs. Cross-check cost recommendations against planned growth before acting.
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.
Quick revision
Key points
- Advisor analyses deployed resources and recommends improvements.
- Five categories are Reliability, Security, Performance, Operational Excellence and Cost.
- Free, personalised and actionable.
Important terminology
- Azure Advisor
- A free service that analyses your resources and recommends improvements.
- Advisor score
- A score showing how well you follow Advisor's best-practice recommendations.
- Well-Architected Framework
- Microsoft's best-practice guidance; Advisor's categories align with its pillars.
Common mistakes
- Confusing Advisor (recommendations) with Service Health (Azure platform issues).
Exam tips
- "Recommendations to reduce cost and improve reliability" = Azure Advisor.
Five quick revision questions
-
1.What does Azure Advisor provide?Show
Personalised recommendations to improve your resources.
-
2.Name the five Advisor categories.Show
Reliability, Security, Performance, Operational Excellence, Cost.
-
3.Does Advisor estimate costs before deployment?Show
No, that's the pricing calculator. Advisor analyses deployed resources.
-
4.Give an example Advisor recommendation.Show
Resize or shut down an underused VM to save money.
-
5.Which framework do Advisor's categories align with?Show
The Azure Well-Architected Framework.
Official references
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