Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
An admin enables backup on a newly deployed Azure VM, but every backup job fails immediately with a message that the VM agent is not ready. What should the administrator verify 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
The VM is placed in an availability zone that supports backup.
Availability zone placement does not cause the VM agent not ready error and is not the first item to check.
B
Best answer
The Azure VM Agent is installed, running, and able to provision backup-related extensions.
Azure Backup relies on the VM agent and extensions inside the guest. If the agent is missing, stopped, or unhealthy, backup jobs can fail before a recovery point is created. Verifying the agent first addresses the specific error message.
C
Distractor review
The VM has a public IP address assigned for outbound connectivity.
A public IP is not required for Azure Backup, and this issue is unrelated to whether the agent inside the VM is ready.
D
Distractor review
The VM is added to a load balancer backend pool.
Load balancer membership does not affect Azure Backup extension provisioning or agent readiness.
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: The Azure VM Agent is installed, running, and able to provision backup-related extensions. — The error message points directly to a guest-side issue, so the first step is to verify the Azure VM Agent and its ability to process extensions. Azure Backup uses the agent to coordinate backup operations within the VM. If the agent is absent, stopped, or unhealthy, the backup extension cannot complete initialization and the job fails before backup processing can begin. Why others are wrong: A is wrong because zone placement does not explain an agent readiness failure. C is wrong because backup does not require a public IP. D is wrong because load balancing is unrelated to backup extension health and agent status.
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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