- A
Build images with --no-cache flag to ensure consistency
Why wrong: --no-cache disables caching, making builds slower.
- B
Docker cache import/export with a GCS bucket
Why wrong: Cloud Build does not support Docker cache import/export natively; it's more complex and not standard.
- C
Use BuildKit with inline cache
Why wrong: BuildKit is not the default builder in Cloud Build and requires additional setup.
- D
Kaniko layer caching with cache repository in Artifact Registry
Kaniko supports --cache-repo to cache layers in Artifact Registry, which is efficient and works with Cloud Build.
Question 450 of 1,000
PCDE Practice Question: Building and Implementing CI/CD Pipelines for a Service
This PCDE practice question tests your understanding of building and implementing ci/cd pipelines for a service. 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 team uses Cloud Build to build a Docker image and push it to Artifact Registry. They need to cache Docker layers to speed up subsequent builds. The build runs on a private pool with access to a VPC. Which caching approach should they implement in cloudbuild.yaml?
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
✓
Kaniko layer caching with cache repository in Artifact Registry
Kaniko layer caching with a cache repository in Artifact Registry is the recommended method for Cloud Build. It stores intermediate layers and reuses them when unchanged. Docker cache import/export requires a persistent volume, which is not native to Cloud Build.
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.
- ✗
Build images with --no-cache flag to ensure consistency
Why it's wrong here
--no-cache disables caching, making builds slower.
- ✗
Docker cache import/export with a GCS bucket
Why it's wrong here
Cloud Build does not support Docker cache import/export natively; it's more complex and not standard.
- ✗
Use BuildKit with inline cache
Why it's wrong here
BuildKit is not the default builder in Cloud Build and requires additional setup.
- ✓
Kaniko layer caching with cache repository in Artifact Registry
Why this is correct
Kaniko supports --cache-repo to cache layers in Artifact Registry, which is efficient and works with Cloud Build.
Related concept
Read the scenario before looking for a memorised answer.
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 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.
Identify which PCDE 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.
- →
Building and Implementing CI/CD Pipelines for a Service — study guide chapter
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Building and Implementing CI/CD Pipelines for a Service practice questions
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FAQ
Questions learners often ask
What does this PCDE question test?
Building and Implementing CI/CD Pipelines for a Service — This question tests Building and Implementing CI/CD Pipelines for a Service — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Kaniko layer caching with cache repository in Artifact Registry — Kaniko layer caching with a cache repository in Artifact Registry is the recommended method for Cloud Build. It stores intermediate layers and reuses them when unchanged. Docker cache import/export requires a persistent volume, which is not native to Cloud Build.
What should I do if I get this PCDE question wrong?
Identify which PCDE 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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jul 4, 2026
This PCDE 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 PCDE exam.
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