AZ-900 Describe Azure management and governance Practice Question
Which Azure feature automatically identifies cost savings opportunities like orphaned resources and idle VMs?
⚠ Common exam trap
It's easy for candidates to confuse Azure Advisor's proactive, automated cost recommendations with Azure Cost Management's budgeting and alerting capabilities, assuming budgets can also identify specific orphaned or idle resources.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Advisor cost recommendations
Azure Advisor is a built-in, personalized cloud consultant that continuously analyzes your Azure resource usage and configuration. It provides proactive cost recommendations by identifying specific optimization opportunities, such as orphaned disks, idle virtual machines (VMs), and underutilized ExpressRoute circuits, helping you reduce spending without manual auditing.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Azure Cost Management budgets
Why it's wrong here
Azure Cost Management budgets provide threshold-based spending alerts and can trigger automation when a budget amount is exceeded, but they are fundamentally a reactive governance tool. Budgets do not analyze usage telemetry across resources to surface actionable cost-saving opportunities, unlike Azure Advisor's cost recommendations. They monitor your actual spend against a defined amount, not the efficiency of the resources that generate that spend.
- ✓
Azure Advisor cost recommendations
Why this is correct
Azure Advisor cost recommendations are the correct answer because Advisor continuously analyzes the configuration and usage telemetry of your already-deployed Azure resources. It identifies underutilized virtual machines (by CPU and network utilization), orphaned resources, idle load balancers, and opportunities to purchase reserved capacity or resize instances, then presents the estimated monthly savings. These recommendations are actionable, prioritized, and provided directly in the portal with a projected cost impact.
- ✗
Azure Pricing Calculator
Why it's wrong here
The Azure Pricing Calculator is a planning tool used to estimate the monthly cost of a proposed workload before you deploy it, based on manually selected regions, tiers, and quantities. It has no visibility into your existing subscriptions, resource utilization, or current spend, so it cannot detect orphaned disks, idle VMs, or reserved capacity opportunities. Its purpose is forward-looking estimation, not backward-looking optimization of resources that are already running.
- ✗
Azure Policy cost controls
Why it's wrong here
Azure Policy enforces organizational standards and compliance rules by evaluating resources and taking actions such as denying non-compliant SKUs or requiring mandatory tags. While a policy can indirectly prevent cost overruns by, for example, restricting VM sizes, it does not analyze utilization or spending patterns to recommend resizing or shutting down underutilized resources. Cost optimization decisions based on usage data are outside the scope of Azure Policy, which is a governance and compliance mechanism, not a recommendation engine.
Go deeper
Related to this question
Learn chapter
Azure Cost Management and Billing
Key term
Azure resource
An Azure resource is a manageable item available through Microsoft Azure, such as a virtual machine, database, or web app.
Key term
Azure Advisor
Azure Advisor is a free, personalized cloud consultant that continuously analyzes your Azure resources and provides best practice recommendations to optimize for reliability, security, performance, operational excellence, and cost.
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