220-1201 Virtualization Concepts Practice Question
This 220-1201 practice question tests your understanding of virtualization concepts. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A technician needs to deploy a virtual machine that will be used for a short-term project and then deleted. The VM must not consume excessive storage space initially. Which virtual disk type should be chosen?
Why wrong: Fixed-size disks pre-allocate the full capacity, wasting space if the VM uses little data.
B
Differencing disk
Why wrong: Differencing disks are used for snapshots or parent-child configurations, not for standalone VMs.
C
Thin-provisioned virtual disk
Thin provisioning allocates only the space used, conserving storage for short-term VMs.
D
Dynamic expanding disk
Why wrong: This is a synonym for thin provisioning, but the correct term in many hypervisors is 'thin provisioning'; however, 'dynamic expanding' is also valid but less precise. The key is that thin provisioning is the best choice.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Thin-provisioned virtual disk
Thin provisioning allocates disk space on demand, starting small and growing as needed. This is ideal for temporary VMs to minimize initial storage usage.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Fixed-size (thick) virtual disk
Why it's wrong here
Fixed-size disks pre-allocate the full capacity, wasting space if the VM uses little data.
✗
Differencing disk
Why it's wrong here
Differencing disks are used for snapshots or parent-child configurations, not for standalone VMs.
✓
Thin-provisioned virtual disk
Why this is correct
Thin provisioning allocates only the space used, conserving storage for short-term VMs.
Related concept
Read the scenario before looking for a memorised answer.
✗
Dynamic expanding disk
Why it's wrong here
This is a synonym for thin provisioning, but the correct term in many hypervisors is 'thin provisioning'; however, 'dynamic expanding' is also valid but less precise. The key is that thin provisioning is the best choice.
Common exam traps
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.
Detailed technical explanation
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Virtualization Concepts — This question tests Virtualization Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Thin-provisioned virtual disk — Thin provisioning allocates disk space on demand, starting small and growing as needed. This is ideal for temporary VMs to minimize initial storage usage.
What should I do if I get this 220-1201 question wrong?
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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