Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A company has virtual machines in Azure that need to be grouped across multiple fault domains and update domains to ensure high availability. They plan to deploy three VMs running the same application tier. Which Azure feature should they use to provide redundancy within a single region?
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
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Availability Zone
Availability Zones provide redundancy across separate physical locations, offering higher SLA but not required for simple within-datacenter HA.
B
Best answer
Availability Set
Availability Sets ensure VMs are placed in different fault and update domains within a single datacenter, meeting the requirement.
C
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Virtual Machine Scale Set with manual scaling
Scale Sets are for auto-scaling and can use availability zones or sets, but the primary HA feature within a region is the Availability Set.
D
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Azure Site Recovery
Site Recovery is for disaster recovery across regions, not for high availability within a single region.
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 company is designing hub-and-spoke networking. Spoke VNets must use a central Azure Firewall for outbound internet traffic. Which two configurations are required?
Question 2
A company is designing private access to a PaaS database from workloads in a VNet. The database should not be reachable over its public endpoint. What should be recommended?
Question 3
A data platform must support analytical queries over petabytes of files in a data lake, while preserving hierarchical namespaces and fine-grained ACLs. Which storage service should you design around?
Question 4
A database workload has an RPO of 15 minutes and an RTO of 4 hours. Cost is more important than near-zero data loss. Which design is usually more appropriate than synchronous multi-region replication?
Question 5
A hub-and-spoke Azure network must centralize outbound inspection and still allow spokes to resolve private endpoint DNS names. Which two components are commonly required? (Choose 2.)
Question 6
A multinational company uses Microsoft Entra ID and several Azure subscriptions. Security administrators need to review privileged role assignments every month and require justification for continued access. Which design should be recommended?
FAQ
Questions learners often ask
What does this AZ-305 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Availability Set — An Availability Set distributes VMs across multiple fault domains (physical hardware separation) and update domains (rolling update groups) within a datacenter. Availability Zones also provide redundancy but across physical locations within a region, which is more advanced. For a simple, cost-effective high availability within one region, an Availability Set is the appropriate choice.
What should I do if I get this AZ-305 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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