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ACE Practice Question: Your Cloud Build pipeline needs to reference…
This ACE practice question tests your understanding of your cloud build pipeline needs to reference…. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Your Cloud Build pipeline needs to reference environment-specific configuration: `PROJECT_ID`, `REGION`, and `IMAGE_TAG` (generated from the Git commit SHA). Where should you define these values in `cloudbuild.yaml`?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Use built-in substitutions (`$PROJECT_ID`, `$COMMIT_SHA`) and define custom substitutions (`$_REGION`) in the trigger or `--substitutions` flag.
$PROJECT_ID and $COMMIT_SHA are Cloud Build built-in substitutions. Custom values like REGION use the $_VAR pattern defined in trigger configuration, enabling environment-specific pipelines from a single cloudbuild.yaml.
B
Distractor review
Use a `.env` file committed to the repository and source it in build steps.
Environment-specific `.env` files shouldn't be committed to the repository (especially with any sensitive values). Built-in and custom substitutions are the Cloud Build native approach.
C
Distractor review
Hardcode the values directly in each build step's `args` field.
Hardcoding values makes the pipeline environment-specific and non-reusable. Different environments (dev, prod) would require different cloudbuild.yaml files.
D
Distractor review
Store all values in Cloud Secret Manager and retrieve them in each build step.
Secret Manager is for sensitive secrets (passwords, keys), not for non-sensitive configuration like region or project ID. Using it for all config adds unnecessary complexity.
Common exam trap
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.
Technical deep dive
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.
Related practice questions
Related ACE practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
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Question 4
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Question 5
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Question 6
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FAQ
Questions learners often ask
What does this ACE question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Use built-in substitutions (`$PROJECT_ID`, `$COMMIT_SHA`) and define custom substitutions (`$_REGION`) in the trigger or `--substitutions` flag. — Cloud Build supports built-in substitutions (like `$PROJECT_ID`, `$BUILD_ID`, `$COMMIT_SHA`) and user-defined substitutions. `$PROJECT_ID` is built-in. `$COMMIT_SHA` is available when triggered from source control. Custom substitutions can be defined in the trigger configuration or passed via the `--substitutions` flag. In `cloudbuild.yaml`, custom substitutions use the format `$_VARIABLE_NAME` (underscore prefix) and are referenced in build steps.
What should I do if I get this ACE question wrong?
Identify which ACE 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.
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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.