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Building and implementing CI/CD pipelines →hardMultiple ChoiceObjective-mapped

PCDOE Building and implementing CI/CD pipelines Practice Question

This PCDOE practice question tests your understanding of building and implementing ci/cd pipelines. 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.

Exhibit

steps:
- name: 'gcr.io/cloud-builders/gcloud'
  args: ['auth', 'configure-docker']
- name: 'gcr.io/cloud-builders/docker'
  args: ['build', '-t', 'us-central1-docker.pkg.dev/my-project/my-repo/my-image:${SHORT_SHA}', '.']
- name: 'gcr.io/cloud-builders/docker'
  args: ['push', 'us-central1-docker.pkg.dev/my-project/my-repo/my-image:${SHORT_SHA}']
- name: 'gcr.io/cloud-builders/kubectl'
  args: ['set', 'image', 'deployment/my-app', 'my-container=us-central1-docker.pkg.dev/my-project/my-repo/my-image:${SHORT_SHA}']
  env:
  - 'CLOUDSDK_COMPUTE_ZONE=us-central1-a'
  - 'CLOUDSDK_CONTAINER_CLUSTER=my-cluster'

Refer to the exhibit. A DevOps engineer is debugging a Cloud Build pipeline that fails after the second step. The error indicates that the docker push fails with a permission denied error. The service account used by Cloud Build has the roles/storage.objectAdmin role on the project. What is the most likely cause of the failure?

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.

Exhibit

steps:
- name: 'gcr.io/cloud-builders/gcloud'
  args: ['auth', 'configure-docker']
- name: 'gcr.io/cloud-builders/docker'
  args: ['build', '-t', 'us-central1-docker.pkg.dev/my-project/my-repo/my-image:${SHORT_SHA}', '.']
- name: 'gcr.io/cloud-builders/docker'
  args: ['push', 'us-central1-docker.pkg.dev/my-project/my-repo/my-image:${SHORT_SHA}']
- name: 'gcr.io/cloud-builders/kubectl'
  args: ['set', 'image', 'deployment/my-app', 'my-container=us-central1-docker.pkg.dev/my-project/my-repo/my-image:${SHORT_SHA}']
  env:
  - 'CLOUDSDK_COMPUTE_ZONE=us-central1-a'
  - 'CLOUDSDK_CONTAINER_CLUSTER=my-cluster'

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 Cloud Build service account needs the roles/artifactregistry.writer role.

The service account has storage.objectAdmin which grants access to Cloud Storage, not Artifact Registry. Pushing to Artifact Registry requires the roles/artifactregistry.writer (or admin) role. Option A is too vague. Option D is already performed in the first step. Option B is less likely as the path appears correct. Option C correctly identifies the missing role.

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 docker push command uses an incorrect repository path.

    Why it's wrong here

    The path appears valid; the error is specifically a permission denied, not a path error.

  • ✗

    The service account does not have permission to push to Artifact Registry.

    Why it's wrong here

    While true, it does not specify the exact missing role; option C is more precise.

  • ✓

    The Cloud Build service account needs the roles/artifactregistry.writer role.

    Why this is correct

    Artifact Registry requires specific roles; storage.objectAdmin is insufficient for pushing images.

    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 gcloud auth configure-docker step must be run for Artifact Registry.

    Why it's wrong here

    That step is already included; it configures Docker to use gcloud credentials for pkg.dev registries.

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 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 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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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 Cloud Build service account needs the roles/artifactregistry.writer role. — The service account has storage.objectAdmin which grants access to Cloud Storage, not Artifact Registry. Pushing to Artifact Registry requires the roles/artifactregistry.writer (or admin) role. Option A is too vague. Option D is already performed in the first step. Option B is less likely as the path appears correct. Option C correctly identifies the missing role.

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.

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Last reviewed: Jun 24, 2026

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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.