Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A company plans to deploy a web application on Azure virtual machines. They want to protect against a datacenter failure within a region. The VMs must be distributed across multiple physically separate locations with independent power, cooling, and networking. Which deployment option should they 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
Availability Set
An Availability Set distributes VMs across fault domains and update domains within a single datacenter. It protects against server rack failures but not against a full datacenter outage.
B
Best answer
Availability Zones
Availability Zones are distinct physical locations within a region, each with independent power, cooling, and networking. Deploying VMs across zones ensures resilience to a datacenter failure.
C
Distractor review
Virtual Machine Scale Set
A Virtual Machine Scale Set provides autoscaling and load balancing for identical VMs, but it does not inherently guarantee distribution across separate datacenters unless combined with Availability Zones.
D
Distractor review
Proximity Placement Group
Proximity Placement Groups are used to co-locate VMs to reduce network latency. They do not provide fault isolation or protection against datacenter failures.
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 Zones — Availability Zones are physically separate datacenters within an Azure region, each with independent power, cooling, and networking. Deploying VMs across zones protects against datacenter-level failures. Availability Sets only protect against rack-level failures within a single datacenter. Scale Sets are for scaling, not primarily for high availability. Proximity Placement Groups reduce latency but do not provide fault isolation.
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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