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Implement Azure security →hardMultiple ChoiceObjective-mapped

Quick Answer

The answer is Microsoft.Compute/virtualMachines/start/action and Microsoft.Compute/virtualMachines/deallocate/action. This custom RBAC role definition is correct because it grants only the specific permissions needed to power on a VM and to deallocate it—stopping the instance and releasing its resources—while deliberately omitting any delete or write actions on the VM or its network interfaces. On the Microsoft Azure Developer Associate AZ-204 exam, this scenario tests your understanding of granular role-based access control, where you must distinguish between actions that change state (start/stop) versus those that modify or destroy resources. A common trap is including Microsoft.Compute/virtualMachines/write or Microsoft.Network/networkInterfaces/write, which would inadvertently allow configuration changes or deletions. To remember this, think of the mnemonic “Start and Stop, never Drop or Swap”—focus on the /start/action and /deallocate/action pair, and avoid any write or delete permissions.

AZ-204 Implement Azure security Practice Question

This AZ-204 practice question tests your understanding of implement azure security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

You need to create a custom RBAC role that allows a security group to start and stop Azure virtual machines in a specific resource group, but not delete them or modify their network interfaces. Which set of actions should you include in the role definition?

Question 1hardmultiple choice
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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

✓

Microsoft.Compute/virtualMachines/start/action and Microsoft.Compute/virtualMachines/deallocate/action

Option A is correct because the custom RBAC role needs to allow starting and stopping (deallocating) VMs without permitting deletion or network interface modifications. The actions Microsoft.Compute/virtualMachines/start/action and Microsoft.Compute/virtualMachines/deallocate/action precisely grant the ability to start a VM and deallocate it (which stops and releases resources), while excluding delete or write permissions on the VM or its network interfaces.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✓

    Microsoft.Compute/virtualMachines/start/action and Microsoft.Compute/virtualMachines/deallocate/action

    Why this is correct

    These actions allow starting and deallocating (stopping) VMs without allowing deletion or network interface changes.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    Microsoft.Compute/virtualMachines/start/action and Microsoft.Compute/virtualMachines/powerOff/action

    Why it's wrong here

    The 'powerOff' action does not exist in Azure RBAC; the correct action for stopping is 'deallocate'.

  • ✗

    Microsoft.Compute/virtualMachines/restart/action and Microsoft.Compute/virtualMachines/deallocate/action

    Why it's wrong here

    Restart is not equivalent to start/stop; the start action is required to power on a VM.

  • ✗

    Microsoft.Compute/virtualMachines/start/action and Microsoft.Compute/virtualMachines/write

    Why it's wrong here

    The 'write' action allows modifying VM properties, which includes deleting or changing network interfaces, too permissive.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates confuse 'powerOff' (which stops the VM but keeps it allocated and billable) with 'deallocate' (which stops and releases resources), leading them to choose Option B instead of the correct deallocate action.

Detailed technical explanation

How to think about this question

In Azure RBAC, actions are defined as strings that map to specific Azure Resource Manager operations. The deallocate action (Microsoft.Compute/virtualMachines/deallocate/action) is distinct from powerOff because deallocation releases the underlying hardware and public IPs, while powerOff retains the VM's allocated resources. This distinction is critical for cost management and compliance scenarios where VMs must be fully stopped to avoid billing for reserved compute capacity.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.

TExam Day Tips

  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this AZ-204 question test?

Implement Azure security — This question tests Implement Azure security — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Microsoft.Compute/virtualMachines/start/action and Microsoft.Compute/virtualMachines/deallocate/action — Option A is correct because the custom RBAC role needs to allow starting and stopping (deallocating) VMs without permitting deletion or network interface modifications. The actions Microsoft.Compute/virtualMachines/start/action and Microsoft.Compute/virtualMachines/deallocate/action precisely grant the ability to start a VM and deallocate it (which stops and releases resources), while excluding delete or write permissions on the VM or its network interfaces.

What should I do if I get this AZ-204 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 11, 2026

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