PCDOE Building and implementing CI/CD pipelines Practice Question
This PCDOE practice question tests your understanding of building and implementing ci/cd pipelines. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 team is using Cloud Build to build a Docker image and push to Artifact Registry. After each build, they want to automatically trigger a deployment to Cloud Run. What is the best way to achieve this?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure a Cloud Run trigger on Artifact Registry push.
Option C is correct because Cloud Run natively supports continuous deployment from Artifact Registry: when a new image is pushed to the registry, Cloud Run can automatically deploy the latest image without requiring an external pipeline or scheduler. This is the simplest and most direct approach, as it eliminates the need for additional CI/CD orchestration while ensuring deployments happen immediately after each successful build.
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.
✗
Use Cloud Build builder to deploy to Cloud Run in the same pipeline.
Why it's wrong here
While possible, it requires additional configuration and is not as automatic as a dedicated trigger.
✗
Use Cloud Deploy to manage the rollout.
Why it's wrong here
Cloud Deploy is for Kubernetes and Anthos, not directly for Cloud Run.
✓
Configure a Cloud Run trigger on Artifact Registry push.
Why this is correct
Cloud Run triggers can automatically deploy new images pushed to Artifact Registry.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Cloud Scheduler to periodically check for new images and deploy.
Why it's wrong here
Cloud Scheduler is not designed for event-driven deployments; it adds latency and complexity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often over-engineer the solution by choosing Cloud Deploy (Option B) because it is a dedicated deployment tool, but the question specifically asks for the 'best way' to trigger a deployment after a single build, where Cloud Run's built-in continuous deployment is simpler and more direct.
Detailed technical explanation
How to think about this question
Under the hood, Cloud Run's continuous deployment feature uses a Pub/Sub notification from Artifact Registry when a new image is pushed; Cloud Run subscribes to that topic and triggers a revision rollout. This event-driven architecture ensures near-instantaneous deployment (typically within seconds) without any polling overhead. In a real-world scenario, if a team has multiple services, they can use image tags (e.g., 'latest' or commit SHA) to control which images trigger which Cloud Run services, and they can also set up deployment policies like 'min-instances' or 'concurrency' directly in the Cloud Run configuration.
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 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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: Configure a Cloud Run trigger on Artifact Registry push. — Option C is correct because Cloud Run natively supports continuous deployment from Artifact Registry: when a new image is pushed to the registry, Cloud Run can automatically deploy the latest image without requiring an external pipeline or scheduler. This is the simplest and most direct approach, as it eliminates the need for additional CI/CD orchestration while ensuring deployments happen immediately after each successful build.
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: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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