Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
Exhibit
Recovery Services vault > Backup item: vm-web02 Available recovery points: 5 Current VM status: Running Issue reported: OS disk corruption after patching Requirement: repair the VM without rebuilding networking or re-registering the VM
Based on the exhibit, the OS disk on a production VM is corrupted, but the VM must stay in place and keep its NIC and data disks. Which restore option should you choose?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Restore the VM as a new virtual machine and delete the existing one immediately.
A full VM restore can create a replacement VM, but the requirement says to keep the current VM in place and avoid rebuilding networking. That makes this option unnecessarily disruptive.
B
Best answer
Restore the disk, then attach or swap it as needed to repair the existing VM.
When the VM still exists but one disk is corrupted, restoring the disk is the correct approach. It lets you recover the damaged OS disk from a backup point and then attach or swap it without rebuilding the VM identity, NIC, or data disk layout. This is a common recovery pattern for targeted repair.
C
Distractor review
Use Azure Monitor to roll back the last deployment automatically.
Azure Monitor observes and alerts on issues; it does not restore disks or roll back VM configurations. Recovery must come from Azure Backup.
D
Distractor review
Enable a diagnostic setting on the VM so the OS disk will be repaired.
Diagnostic settings collect logs and metrics, but they do not repair corrupted disks or provide disk recovery capabilities.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A route table contains these entries: 10.0.0.0/8 with next hop Virtual appliance, and 10.1.1.0/24 with next hop Virtual network gateway. Which next hop will Azure use for traffic to 10.1.1.5?
Question 2
You are deploying a stateless web application on Azure virtual machines. The solution must automatically add and remove instances based on CPU demand and allow all instances to be managed as one logical group. Which Azure compute feature should you deploy?
Question 3
You are deploying a Windows Server VM for an internal app. The VM must support Secure Boot and vTPM later, its OS disk must survive host moves, and the team wants the lowest-cost managed disk tier that still behaves like a normal writable OS disk. Which two choices should you make? Select two.
Question 4
You need to deploy several identical virtual machines and ensure that the failure of a single Azure host does not affect all of them. Which feature should you use?
Question 5
You need to connect VNet-Hub and VNet-Spoke so that resources in both virtual networks can communicate privately over the Microsoft backbone. Both virtual networks are in the same region. What should you configure?
Question 6
You need to create a storage account that provides the lowest-cost redundant storage for non-critical data and only needs protection against local disk or server failure within a single datacenter. Which redundancy option should you choose?
FAQ
Questions learners often ask
What does this AZ-104 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Restore the disk, then attach or swap it as needed to repair the existing VM. — Because the VM is still present and only the OS disk is damaged, restoring the disk is the least disruptive recovery option. Azure Backup can restore a specific disk from a recovery point so you can repair the existing VM instead of rebuilding the networking components or re-creating the entire server. That matches the requirement to keep the VM in place. Why others are wrong: Restoring the whole VM is more disruptive than necessary. Azure Monitor does not perform restore operations, so it cannot roll back the corruption. Diagnostic settings are only for telemetry and troubleshooting data, not for disk repair. The scenario is about targeted recovery of a corrupted disk, which points to a disk restore.
What should I do if I get this AZ-104 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
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