Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
Exhibit
Development environment notes: - The VM is recreated frequently from an image - The OS disk contents do not need to be preserved after the VM is deallocated - The team wants the lowest practical OS disk latency - Data durability is not the top priority for this VM
Based on the exhibit, which OS disk option best fits a development VM that is rebuilt often and does not need the disk contents to survive deallocation?
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
A Standard HDD managed OS disk.
Standard HDD is durable and low cost, but it does not provide the lowest practical latency for the OS disk.
B
Best answer
An ephemeral OS disk.
An ephemeral OS disk is the best match because it provides very fast local storage for the operating system and does not need to preserve data after deallocation. This is ideal for rebuildable development VMs where performance matters more than retaining the OS disk contents.
C
Distractor review
A premium managed data disk used as the OS disk.
A managed data disk is not the normal choice for the operating system, and it adds complexity without meeting the requirement better than an ephemeral OS disk.
D
Distractor review
A shared disk attached to multiple VMs.
A shared disk is meant for specialized clustered workloads. It is not the right fit for a single development VM OS disk.
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.
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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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 ephemeral OS disk. — An ephemeral OS disk is the right answer because the scenario says the VM is rebuilt often and does not need the operating system disk contents to survive deallocation. Ephemeral disks use local storage on the host, which gives low latency and fast provisioning. That makes them a strong fit for temporary or easily recreated development systems. Why others are wrong: Standard HDD is durable but slower. A data disk is not the normal place to run the OS and does not solve the latency goal. A shared disk is intended for clustered scenarios, not for a single rebuildable development VM.
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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