- A
Use a Cloud Storage bucket to store the .m2 directory and restore it at the start of the build.
Why wrong: Using a Cloud Storage bucket is possible but less integrated; it requires manual steps to restore the .m2 directory before each build.
- B
Use a Docker layer caching with a custom image that includes dependencies.
Why wrong: Docker layer caching with a custom image can help, but it is not specifically designed for Maven dependencies and may not reduce build time as effectively as using volumes.
- C
Use Cloud Build's built-in caching mechanism by specifying volumes.
Cloud Build's built-in caching via volumes is the best integrated solution for persisting directories like .m2 across builds.
- D
Use Cloud Build's 'cache' configuration to persist directories.
Why wrong: Cloud Build does not have a native 'cache' configuration for directories; the correct approach is to use volumes.
PCDOE Cloud Build volumes Practice Question
This PCDOE practice question tests your understanding of building and implementing ci/cd pipelines. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: cloud Build volumes. 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 uses Cloud Build to compile a Java application. The build takes 15 minutes due to dependency downloads. They want to cache the Maven dependencies to speed up subsequent builds. What is the best approach?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Use Cloud Build's built-in caching mechanism by specifying volumes.
Option C is correct because Cloud Build supports volumes that can be used to cache directories between builds. Specifically, you can specify a volume for the Maven local repository (.m2) to persist across runs, speeding up builds by avoiding repeated downloads. Option A is possible but less integrated and requires manual restoration. Option B is not ideal because layer caching depends on Docker image caching, not Maven dependencies. Option D is not a native Cloud Build feature; the correct approach is via volumes.
Key principle: Cloud Build volumes
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a Cloud Storage bucket to store the .m2 directory and restore it at the start of the build.
Why it's wrong here
Using a Cloud Storage bucket is possible but less integrated; it requires manual steps to restore the .m2 directory before each build.
- ✗
Use a Docker layer caching with a custom image that includes dependencies.
Why it's wrong here
Docker layer caching with a custom image can help, but it is not specifically designed for Maven dependencies and may not reduce build time as effectively as using volumes.
- ✓
Use Cloud Build's built-in caching mechanism by specifying volumes.
Why this is correct
Cloud Build's built-in caching via volumes is the best integrated solution for persisting directories like .m2 across builds.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Cloud Build volumes
- ✗
Use Cloud Build's 'cache' configuration to persist directories.
Why it's wrong here
Cloud Build does not have a native 'cache' configuration for directories; the correct approach is to use volumes.
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
- Cloud Build volumes
- Maven local repository caching
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
Cloud Build volumes
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.
Quick reference
OSI Model Reference
| Layer | Name | PDU | Key Protocols / Devices |
|---|---|---|---|
| 7 | Application | Data | HTTP, HTTPS, DNS, SMTP, FTP, SSH |
| 6 | Presentation | Data | TLS / SSL, JPEG, ASCII encoding |
| 5 | Session | Data | NetBIOS, RPC, SIP |
| 4 | Transport | Segment / Datagram | TCP, UDP |
| 3 | Network | Packet | IP, ICMP, OSPF — Routers |
| 2 | Data Link | Frame | Ethernet, Wi-Fi, PPP — Switches, Bridges |
| 1 | Physical | Bits | Cables, NICs, Hubs, Repeaters |
What to study next
Got this wrong? Here's your next step.
Review cloud Build volumes, then practise related PCDOE questions on the same topic to reinforce the concept.
- →
Building and implementing CI/CD pipelines — study guide chapter
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Building and implementing CI/CD pipelines practice questions
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FAQ
Questions learners often ask
What does this PCDOE question test?
Building and implementing CI/CD pipelines — This question tests Building and implementing CI/CD pipelines — Cloud Build volumes.
What is the correct answer to this question?
The correct answer is: Use Cloud Build's built-in caching mechanism by specifying volumes. — Option C is correct because Cloud Build supports volumes that can be used to cache directories between builds. Specifically, you can specify a volume for the Maven local repository (.m2) to persist across runs, speeding up builds by avoiding repeated downloads. Option A is possible but less integrated and requires manual restoration. Option B is not ideal because layer caching depends on Docker image caching, not Maven dependencies. Option D is not a native Cloud Build feature; the correct approach is via volumes.
What should I do if I get this PCDOE question wrong?
Review cloud Build volumes, then practise related PCDOE questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Cloud Build volumes
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Last reviewed: Jun 24, 2026
This PCDOE 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 PCDOE exam.
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