Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A Windows VM must automatically run a setup script after provisioning to install an agent, create a folder, and write configuration files. The administrator wants the script to be delivered through Azure management and run without a human signing in. What should be used?
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
Custom Script Extension
Custom Script Extension can download and run setup commands on the VM after provisioning without interactive login.
B
Distractor review
Availability set
An availability set improves resiliency, but it does not execute configuration scripts on the guest operating system.
C
Distractor review
Azure Load Balancer
A load balancer distributes traffic, but it cannot install software or configure the Windows guest.
D
Distractor review
Route table
A route table changes packet routing, but it has no role in software installation or startup configuration.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
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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?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Custom Script Extension — The Custom Script Extension is the right tool because it runs configuration commands on the VM after deployment and does not require a person to sign in interactively. It is commonly used to install agents, initialize folders, or apply simple configuration steps as part of provisioning. The administrator can manage the script through Azure, which keeps the process repeatable and consistent. Availability sets, load balancers, and route tables solve different infrastructure problems and do not execute guest-level setup work. Why others are wrong: An availability set only helps with resilience, not configuration. Azure Load Balancer manages network traffic distribution and has no guest OS access. A route table influences traffic flow between networks and subnets, but it does not run scripts or install software inside the VM.
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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