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ACE Practice Question: A Cloud Build pipeline needs to deploy to Cloud…
This ACE practice question tests your understanding of a cloud build pipeline needs to deploy to cloud…. 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 Cloud Build pipeline needs to deploy to Cloud Run but the pipeline's service account has only minimal permissions. Rather than granting it Cloud Run Admin, the team wants it to temporarily act as a more privileged deployment service account. Which technique enables this?
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
Distractor review
Add the Cloud Build SA as an Owner of the project
Granting Owner to a CI/CD service account violates least privilege — it's far more access than needed for a deployment operation.
B
Distractor review
Enable service account delegation in the project's IAM settings
There is no 'service account delegation' toggle in IAM settings — impersonation is configured via role bindings on the target service account.
C
Distractor review
Download the deployment service account's JSON key and store it in Cloud Build secrets
Using key files for impersonation introduces long-lived credentials — impersonation via token exchange is the preferred keyless approach.
D
Best answer
Grant service account impersonation: give the Cloud Build SA the Token Creator role on the deployment SA
With `roles/iam.serviceAccountTokenCreator` on the target SA, the Cloud Build SA can generate short-lived access tokens to act as the deployment SA — no key files needed.
Common exam trap
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Technical deep dive
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
- Authentication checks who the user is.
- Authorization controls what the user is allowed to do after login.
- Privilege levels affect access to EXEC and configuration commands.
- AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
- Do not assume successful login means full administrative access.
- Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
- Separate login problems from permission problems before choosing the answer.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
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.
Question 1
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
A startup creates its first Google Cloud project. Before deploying any paid resources, what must be linked to the project?
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FAQ
Questions learners often ask
What does this ACE question test?
Authentication checks who the user is.
What is the correct answer to this question?
The correct answer is: Grant service account impersonation: give the Cloud Build SA the Token Creator role on the deployment SA — Service account impersonation lets one service account generate short-lived credentials for another service account. The Cloud Build SA is granted `roles/iam.serviceAccountTokenCreator` on the deployment SA, then uses `--impersonate-service-account` or the IAM Credentials API to act as the deployment SA for specific operations.
What should I do if I get this ACE question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related ACE questions on access control and AAA configuration.
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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.