Question 1hardmulti select
Full question →hardmulti selectObjective-mapped
A Windows VM fails shortly after startup when a custom extension runs, and the administrator cannot use RDP to inspect the machine. The goal is to see what happened during boot and confirm whether the failure occurred before the guest OS finished loading. Which two features should be used first? Select two.
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
Best answer
Boot diagnostics
This captures screenshots and serial logs that help diagnose early boot failures.
B
Best answer
Azure Serial Console
This provides direct text-based access for troubleshooting when normal remote access fails.
C
Distractor review
Availability set
An availability set changes placement resilience, but it does not help inspect boot problems.
D
Distractor review
Managed disk snapshots
Snapshots are useful for recovery, but they do not show the startup sequence or extension logs.
E
Distractor review
Azure Monitor autoscale
Autoscale changes instance count and has no role in investigating a single VM boot failure.
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: Boot diagnostics — Boot diagnostics and Azure Serial Console are the most useful first tools when a VM fails early in startup and normal remote access is unavailable. Boot diagnostics gives the administrator the boot screenshot and serial log needed to see whether the VM reached the operating system and where it stopped. The Serial Console provides direct low-level interaction for additional inspection. Together, they are the fastest path to determine whether the issue is with the guest OS, the extension, or the boot process itself. Why others are wrong: Availability sets do not surface guest boot problems, and managed disk snapshots only capture storage state for later recovery. Azure Monitor autoscale is unrelated to troubleshooting one failing VM. Those distractors may sound operational, but they do not provide visibility into the pre-login startup sequence or the extension handler behavior that the scenario specifically requires.
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.
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