CV0-004 Cloud Architecture and Design Practice Question
This CV0-004 practice question tests your understanding of cloud architecture and design. 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 company is migrating a legacy application to the cloud. The application requires low-latency access to a shared filesystem that must be accessible from multiple virtual machines simultaneously. Which storage solution should the cloud architect recommend?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Block storage
Block storage (C) is correct because it provides a shared filesystem that can be mounted by multiple virtual machines simultaneously with low-latency access. Services like Amazon EBS with multi-attach or Azure Managed Disks support concurrent read/write operations from multiple instances, meeting the legacy application's requirement for a shared, low-latency filesystem.
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.
✗
Cold archive storage
Why it's wrong here
Cold archive storage is for long-term backup, not active filesystem use.
✗
Local instance store
Why it's wrong here
Local instance store is ephemeral and tied to a single VM, cannot be shared.
✓
Block storage
Why this is correct
Block storage can be attached to multiple VMs using a cluster filesystem, providing shared low-latency access.
Related concept
Read the scenario before looking for a memorised answer.
✗
Object storage
Why it's wrong here
Object storage is not suitable for shared filesystem use cases; it provides HTTP-based access and lacks filesystem semantics.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse object storage's high durability and accessibility with the low-latency, shared filesystem capabilities of block storage, overlooking that object storage lacks the block-level locking and POSIX compliance needed for concurrent VM access.
Detailed technical explanation
How to think about this question
Block storage exposes raw volumes via protocols like iSCSI or NVMe-oF, allowing multiple VMs to mount the same volume when configured with a cluster-aware filesystem (e.g., GFS2 or OCFS2). In real-world scenarios, this is critical for legacy applications like Oracle RAC or SAP that rely on shared disk architectures, where even millisecond latency differences can impact transaction throughput. The multi-attach feature must be explicitly enabled and requires the VMs to be in the same availability zone to maintain low-latency connectivity.
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.
TExam Day Tips
→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 CV0-004 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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Cloud Architecture and Design — This question tests Cloud Architecture and Design — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Block storage — Block storage (C) is correct because it provides a shared filesystem that can be mounted by multiple virtual machines simultaneously with low-latency access. Services like Amazon EBS with multi-attach or Azure Managed Disks support concurrent read/write operations from multiple instances, meeting the legacy application's requirement for a shared, low-latency filesystem.
What should I do if I get this CV0-004 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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