- A
The rollout strategy includes a manual approval step before advancing to the next phase.
Cloud Deploy pauses at approval steps; automatic rollback only occurs during phases without requiring approval if metrics are checked via a verification job.
- B
The release was created with a '--disable-rollback' flag.
Why wrong: There is no such flag; rollback can be disabled via pipeline definition but not per release.
- C
The Cloud Deploy pipeline does not have a stackdriverMetrics verification job defined to check error rates.
Why wrong: Correct, but this is why it didn't roll back; however, the question asks for most likely cause given the pipeline didn't have automatic rollback. This is a possible cause but less direct than A if approval is configured.
- D
The rollout has not yet reached 100% traffic, so Cloud Deploy waits for full completion before evaluating health.
Why wrong: Cloud Deploy can evaluate health at each phase, not just at 100%.
PCDOE Building and implementing CI/CD pipelines Practice Question
This PCDOE practice question tests your understanding of building and implementing ci/cd pipelines. 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.
An organization uses Cloud Deploy with Skaffold to manage progressive delivery on GKE. After a rollout, the new revision shows a higher error rate in Stackdriver, but the Cloud Deploy pipeline did not automatically roll back. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
The rollout strategy includes a manual approval step before advancing to the next phase.
Option A is correct because Cloud Deploy can wait for manual approval or an external verification job; if the rollout strategy is set to require approval, automatic rollback is not triggered. Option B is incorrect because the rollout doesn't need to complete to trigger a rollback if metrics are monitored. Option C is incorrect because the error rate metric is not part of the pipeline unless a custom verification job is configured. Option D is incorrect because the release configuration doesn't affect automatic rollback behavior.
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.
- ✓
The rollout strategy includes a manual approval step before advancing to the next phase.
Why this is correct
Cloud Deploy pauses at approval steps; automatic rollback only occurs during phases without requiring approval if metrics are checked via a verification job.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The release was created with a '--disable-rollback' flag.
Why it's wrong here
There is no such flag; rollback can be disabled via pipeline definition but not per release.
- ✗
The Cloud Deploy pipeline does not have a stackdriverMetrics verification job defined to check error rates.
Why it's wrong here
Correct, but this is why it didn't roll back; however, the question asks for most likely cause given the pipeline didn't have automatic rollback. This is a possible cause but less direct than A if approval is configured.
- ✗
The rollout has not yet reached 100% traffic, so Cloud Deploy waits for full completion before evaluating health.
Why it's wrong here
Cloud Deploy can evaluate health at each phase, not just at 100%.
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 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
Got this wrong? Here's your next step.
Identify which PCDOE 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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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 — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The rollout strategy includes a manual approval step before advancing to the next phase. — Option A is correct because Cloud Deploy can wait for manual approval or an external verification job; if the rollout strategy is set to require approval, automatic rollback is not triggered. Option B is incorrect because the rollout doesn't need to complete to trigger a rollback if metrics are monitored. Option C is incorrect because the error rate metric is not part of the pipeline unless a custom verification job is configured. Option D is incorrect because the release configuration doesn't affect automatic rollback behavior.
What should I do if I get this PCDOE question wrong?
Identify which PCDOE 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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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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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