Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
Exhibit
Scaling requirement: - Workload is stateless - Start with 2 instances - Increase capacity when average CPU stays above 70% for 10 minutes - Decrease capacity when demand drops - All instances should run the same image and configuration
Based on the exhibit, a stateless web app must add VM instances during business hours and remove them at night based on CPU usage. Which Azure service should the administrator deploy?
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
An availability set with two virtual machines.
An availability set improves resilience, but it does not automatically add or remove VM instances based on load.
B
Best answer
An Azure virtual machine scale set.
A virtual machine scale set is designed for identical VM instances that can scale out and scale in automatically. It works well for stateless workloads, and autoscale rules can use CPU thresholds or schedules to adjust capacity over time. This exactly matches the requirement for business-hour scaling.
C
Distractor review
A single Azure VM with a larger size.
Resizing one VM can improve performance, but it does not provide automatic horizontal scaling for changing demand.
D
Distractor review
A recovery services vault.
A recovery services vault is used for backup and restore, not autoscaling compute resources.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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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?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: An Azure virtual machine scale set. — A virtual machine scale set is the correct choice because it deploys and manages a group of identical VMs that can scale automatically. Since the workload is stateless, Azure can safely add or remove instances in response to CPU-based autoscale rules. That makes VM scale sets the right service for handling predictable daily demand changes without manual intervention. Why others are wrong: An availability set provides resiliency but no automatic scaling. A single larger VM might improve performance, yet it still remains one machine and cannot scale out. A recovery services vault protects data through backups; it does not deploy or scale compute instances.
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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