Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A data disk was accidentally deleted from a production VM. The team has a snapshot of that disk from the previous night and wants the fastest Azure-side recovery path with the least risk of overwriting the existing OS disk. What should the administrator do first?
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 entire virtual machine from the snapshot and overwrite the current instance.
A snapshot is not a full VM backup workflow in this context, and restoring the whole VM is unnecessary and risky. The requirement is to recover only the missing data disk, not to replace the working operating system disk.
B
Best answer
Create a new managed disk from the snapshot, then attach that disk to the VM.
The snapshot contains the point-in-time disk state, so the correct first step is to create a new managed disk from it. Once the disk exists, it can be attached to the VM and the data recovered without disturbing the OS disk or other volumes.
C
Distractor review
Convert the snapshot into a temporary storage account and copy the files back manually.
A snapshot is not converted into a storage account. While files can sometimes be copied from mounted disks, the practical Azure recovery step begins by creating a managed disk from the snapshot.
D
Distractor review
Recreate the VM from the same marketplace image and restore only the deleted disk later.
Recreating the VM wastes time and introduces unnecessary change. The operating system disk is still intact, so rebuilding the server does not address the immediate recovery requirement.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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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?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Create a new managed disk from the snapshot, then attach that disk to the VM. — A snapshot is a point-in-time copy of a disk, so the correct recovery pattern is to create a managed disk from the snapshot and then attach that disk to the VM. This preserves the OS disk and minimizes impact to the running workload. It is the safest and fastest Azure-native approach when only one data disk was lost and a valid snapshot already exists. Why others are wrong: Restoring the whole VM is too disruptive when the OS disk is still healthy. Copying a snapshot directly to a storage account is not the recovery flow. Rebuilding the VM from a marketplace image would reintroduce setup work and still would not restore the lost data disk cleanly. The scenario is specifically about disk-level recovery, not full-server rebuild.
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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