This PCDOE practice question tests your understanding of bootstrapping a google cloud organization for devops. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 uses Cloud Build and wants to trigger builds only from the master branch. Which configuration is required?
Create separate triggers for each branch.
Why wrong: Would trigger on all branches, not just master.
Set the branch filter to 'master' in the trigger.
Directly filters on branch name.
Use a custom Cloud Build step to check the branch name.
Why wrong: Unnecessarily complex; use built-in filter.
Use a Cloud Function to call Cloud Build for master only.
Why wrong: Overkill; trigger filter is simpler.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Set the branch filter to 'master' in the trigger.
Option B is correct because Cloud Build triggers allow you to specify a branch filter using a regex pattern. Setting the filter to 'master' ensures that only pushes or pull requests targeting the master branch initiate the build. This is the native, supported method for branch-based triggering without additional overhead.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Create separate triggers for each branch.
Why it's wrong here
Would trigger on all branches, not just master.
Set the branch filter to 'master' in the trigger.
Why this is correct
Directly filters on branch name.
Related concept
Read the scenario before looking for a memorised answer.
Use a custom Cloud Build step to check the branch name.
Why it's wrong here
Unnecessarily complex; use built-in filter.
Use a Cloud Function to call Cloud Build for master only.
Why it's wrong here
Overkill; trigger filter is simpler.
Common exam traps
Google Cloud often tests the misconception that you need external services or custom logic to filter branches, when in fact Cloud Build's built-in trigger branch filter is the simplest and most efficient solution.
Detailed technical explanation
Cloud Build triggers evaluate the branch filter against the incoming event's ref field (e.g., refs/heads/master) using a glob or regex pattern. The filter is applied at the event level, meaning the build is not even created if the branch doesn't match, which saves costs and avoids unnecessary invocations. In a real-world scenario, this is critical for enforcing CI/CD pipelines where only production-ready code on the master branch should trigger deployments.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Bootstrapping a Google Cloud organization for DevOps — This question tests Bootstrapping a Google Cloud organization for DevOps — Read the scenario before looking for a memorised answer..
The correct answer is: Set the branch filter to 'master' in the trigger. — Option B is correct because Cloud Build triggers allow you to specify a branch filter using a regex pattern. Setting the filter to 'master' ensures that only pushes or pull requests targeting the master branch initiate the build. This is the native, supported method for branch-based triggering without additional overhead.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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