Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
You deploy a Windows VM with an ARM template. During the first boot, it must install IIS, copy application files from storage, and run a bootstrap script. Which Azure feature should you add to the deployment?
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
A VM extension such as Custom Script Extension
A VM extension can run scripted configuration tasks during or after deployment, which fits bootstrap automation.
B
Distractor review
An availability set
An availability set affects placement and resiliency, but it cannot install or configure software on the VM.
C
Distractor review
A managed disk snapshot
A snapshot captures disk state, but it does not execute installation steps during first boot.
D
Distractor review
A public IP address
A public IP enables connectivity, but it does not automate IIS installation or file copy tasks.
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: A VM extension such as Custom Script Extension — A VM extension is the right tool when you need post-provisioning or first-boot configuration as part of deployment automation. The Custom Script Extension can install features, copy files, and execute bootstrap logic without requiring manual logon. This is more appropriate than relying on ad hoc access after deployment because it embeds the setup steps into the provisioning workflow and makes the build repeatable. Why others are wrong: An availability set changes fault domain placement, not software installation behavior. A snapshot is a storage copy point, not an automation mechanism. A public IP helps with remote connectivity, but the scenario is about unattended configuration at deployment time, so it does not satisfy the requirement.
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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