PCDOE Practice Question: Bootstrapping a Google Cloud organization for DevOps
This PCDOE practice question tests your understanding of bootstrapping a google cloud organization for devops. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Network Topology
Refer to the exhibit. A Cloud Build pipeline using this configuration fails on the third step with a permission error. The Cloud Build service account has the 'Cloud Run Admin' role. What is the most likely missing permission?
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 the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
iam.serviceAccounts.actAs on the Cloud Run runtime service account
The Cloud Build pipeline fails on the third step with a permission error because the Cloud Build service account, despite having the 'Cloud Run Admin' role, lacks the `iam.serviceAccounts.actAs` permission on the Cloud Run runtime service account. This permission is required for Cloud Build to impersonate the runtime service account when deploying to Cloud Run, as the deployment step needs to act on behalf of that service account to create or update the service.
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.
✗
run.routes.invoke
Why it's wrong here
Not typically needed for deployment; Cloud Run Admin includes sufficient invoke permissions.
✓
iam.serviceAccounts.actAs on the Cloud Run runtime service account
Why this is correct
Required to deploy revisions; the service account acts as the runtime service account.
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.
✗
storage.objects.list on the artifact bucket
Why it's wrong here
Not needed for deployment; the image is pulled by Cloud Run, not the build step.
✗
resourcemanager.projects.get
Why it's wrong here
Unrelated to Cloud Run deployment.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that the 'Cloud Run Admin' role alone is sufficient for Cloud Build to deploy to Cloud Run, when in fact the `iam.serviceAccounts.actAs` permission on the runtime service account is a separate, required permission that is not included in the Cloud Run Admin role.
Detailed technical explanation
How to think about this question
Under the hood, Cloud Build uses the Cloud Run Admin role to manage Cloud Run services, but the actual deployment (e.g., `gcloud run deploy`) requires the Cloud Build service account to impersonate the Cloud Run runtime service account via the `iam.serviceAccounts.actAs` permission. This is because Cloud Run assigns a runtime service account to the running container, and the deployment step must assume that identity to configure the service. In real-world scenarios, if the runtime service account is a custom service account with specific permissions (e.g., access to Cloud SQL or Secret Manager), failing to grant `actAs` will cause the deployment to fail even if the Cloud Build service account has full Cloud Run Admin privileges.
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.
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
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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..
What is the correct answer to this question?
The correct answer is: iam.serviceAccounts.actAs on the Cloud Run runtime service account — The Cloud Build pipeline fails on the third step with a permission error because the Cloud Build service account, despite having the 'Cloud Run Admin' role, lacks the `iam.serviceAccounts.actAs` permission on the Cloud Run runtime service account. This permission is required for Cloud Build to impersonate the runtime service account when deploying to Cloud Run, as the deployment step needs to act on behalf of that service account to create or update the service.
What should I do if I get this PCDOE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.