Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A line-of-business web tier consists of two Azure VMs in a region that supports availability zones. The business requirement is to survive a full datacenter outage in that region without deploying to a second region. What should the administrator use?
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 multiple update domains
Availability sets protect against host and maintenance issues, not a full datacenter failure.
B
Best answer
Availability zones with the VMs placed in different zones
Zones are isolated datacenter locations within a region, which protects against one datacenter becoming unavailable.
C
Distractor review
A proximity placement group for both VMs
Proximity placement groups improve latency but do not add datacenter-level resilience.
D
Distractor review
A single-zone virtual machine scale set
A single zone still depends on one datacenter and cannot meet the outage tolerance requirement.
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: Availability zones with the VMs placed in different zones — Availability zones are the correct placement choice because they map workloads to physically separate datacenters inside the same Azure region. If one datacenter goes down, the VMs in the other zone can keep running. An availability set only spreads VMs across update and fault domains within a datacenter cluster, so it helps with host maintenance but not a full zone or datacenter outage. Why others are wrong: An availability set improves resiliency against planned maintenance and some hardware failures, but not an entire datacenter loss. A proximity placement group is about placement affinity and low latency, not fault isolation. A single-zone VM scale set still depends on one zone, so it does not satisfy a requirement to survive datacenter-level failure within the region.
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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