- A
Filestore
Why wrong: Filestore is a file share (NFS), not a block device that can be attached to an instance.
- B
Cloud Storage bucket
Why wrong: Cloud Storage is object storage, not block storage, and cannot be attached as a drive.
- C
Persistent Disk
Persistent Disk can be detached and reattached to another instance, suitable for stateful failover.
- D
Local SSD
Why wrong: Local SSD is ephemeral and data is lost if the instance stops or fails.
Question 221 of 1,000
Google ACE Persistent Disk Practice Question
This ACE practice question tests your understanding of deploying and implementing a cloud solution. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: persistent Disk. 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 wants to run a stateful application on Compute Engine with persistent storage that can be attached to another instance in case of failure. Which storage option should they use?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Persistent Disk
Persistent Disk (PD) is a network-attached block storage that can be detached and reattached to another VM in the same zone. Option C is correct. Option A (Filestore) is a file storage service, not block storage; Option B (Cloud Storage bucket) is object storage; Option D (Local SSD) is ephemeral and tied to the instance.
Key principle: Persistent Disk
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Filestore
Why it's wrong here
Filestore is a file share (NFS), not a block device that can be attached to an instance.
- ✗
Cloud Storage bucket
Why it's wrong here
Cloud Storage is object storage, not block storage, and cannot be attached as a drive.
- ✓
Persistent Disk
Why this is correct
Persistent Disk can be detached and reattached to another instance, suitable for stateful failover.
Related concept
Persistent Disk
- ✗
Local SSD
Why it's wrong here
Local SSD is ephemeral and data is lost if the instance stops or fails.
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
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Persistent Disk
- Stateful Application
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
Persistent Disk
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Review persistent Disk, then practise related ACE questions on the same topic to reinforce the concept.
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Deploying and Implementing a Cloud Solution — study guide chapter
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FAQ
Questions learners often ask
What does this ACE question test?
Deploying and Implementing a Cloud Solution — This question tests Deploying and Implementing a Cloud Solution — Persistent Disk.
What is the correct answer to this question?
The correct answer is: Persistent Disk — Persistent Disk (PD) is a network-attached block storage that can be detached and reattached to another VM in the same zone. Option C is correct. Option A (Filestore) is a file storage service, not block storage; Option B (Cloud Storage bucket) is object storage; Option D (Local SSD) is ephemeral and tied to the instance.
What should I do if I get this ACE question wrong?
Review persistent Disk, then practise related ACE questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Persistent Disk
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Last reviewed: Jul 4, 2026
This ACE practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ACE exam.
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