Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
Exhibit
Region capabilities: - East US 2: supports Availability Zones Requirements: - Deploy two identical web server VMs - Keep the service available if one datacenter fails - Use Azure Load Balancer for traffic distribution
Based on the exhibit, the company will deploy two identical web server VMs in East US 2 behind a load balancer. The service must keep running if one datacenter in the region becomes unavailable. Which deployment choice best meets the requirement?
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
Place both VMs in an availability set so Azure can spread them across fault domains.
Availability sets improve maintenance and host fault tolerance, but they stay inside one datacenter boundary.
B
Best answer
Place one VM in each of two availability zones and front them with the load balancer.
Availability zones place each VM in a separate datacenter boundary, which protects against one zone failure. If you distribute the web servers across zones, the load balancer can continue sending traffic to the remaining healthy instance when a zone becomes unavailable. This design matches the requirement to survive a datacenter outage within the region.
C
Distractor review
Place both VMs in one availability zone because all zones in a region share failure domains.
A single availability zone does not provide protection from that zone failing. Zones are meant to isolate failures from each other, not share them.
D
Distractor review
Deploy a single VM because Azure automatically replicates it across the region.
A single VM has no built-in redundancy, and Azure does not automatically replicate it into another datacenter for you.
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: Place one VM in each of two availability zones and front them with the load balancer. — Availability zones are the right choice when the requirement is to survive the loss of an entire datacenter within a supported region. Each zone is physically isolated and has independent power, cooling, and networking. If you place one instance in each of two zones behind a load balancer, the application can keep serving traffic when one zone fails. Availability sets only protect against host and update domain failures within a single datacenter footprint. Why others are wrong: Availability sets help with planned maintenance and host-level failures, but they do not span independent datacenter zones. A single-zone deployment still leaves both VMs exposed to one zone outage. A single VM has no redundancy at all, so it cannot satisfy the resilience 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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