The answer is to pin base image digests in the Dockerfile, implement container scanning, and use canary deployments. These three steps form a robust quality gate for your CI/CD pipeline quality steps for Cloud Build because they address the core pillars of security, reproducibility, and risk mitigation. Pinning digests ensures every build uses an immutable, verified base image, preventing unexpected changes from breaking production. Container scanning catches vulnerabilities before deployment, while canary deployments limit blast radius by routing a small percentage of traffic to a new version. On the Google Professional Data Engineer exam, this question tests your understanding of deployment safety versus speed—a common trap is choosing unit tests after deployment, which is too late to prevent bad code from reaching users. Remember the mnemonic “Pin, Scan, Canary” to lock in the three essential quality steps.
PDE Ensuring solution quality Practice Question
This PDE practice question tests your understanding of ensuring solution quality. 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 company uses Cloud Build to deploy containerized applications. They want to ensure build and deployment quality. Which THREE steps should they include in their CI/CD pipeline? (Choose three.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Scan container images for vulnerabilities using Container Analysis.
Options B, D, and E are correct: Container scanning catches vulnerabilities, canary deployments reduce risk, and pinning base image digests ensures reproducibility. Option A (unit tests after deployment) is too late. Option C (direct deployment to production) bypasses safety checks.
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.
✓
Scan container images for vulnerabilities using Container Analysis.
Why this is correct
Vulnerability scanning ensures images are secure before deployment.
Related concept
Read the scenario before looking for a memorised answer.
✗
Run unit tests after deployment.
Why it's wrong here
Tests should be run before deployment to catch issues early.
✗
Deploy directly to production on every commit.
Why it's wrong here
Direct deployment bypasses staging and canary testing, increasing risk.
✓
Use canary deployments with gradual traffic shifting.
Why this is correct
Canary deployments limit blast radius and allow monitoring before full rollout.
Related concept
Read the scenario before looking for a memorised answer.
✓
Pin base image digests in Dockerfile.
Why this is correct
Pinning digests ensures reproducible builds and prevents unwanted updates.
Related concept
Read the scenario before looking for a memorised answer.
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 PDE 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.
Ensuring solution quality — This question tests Ensuring solution quality — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Scan container images for vulnerabilities using Container Analysis. — Options B, D, and E are correct: Container scanning catches vulnerabilities, canary deployments reduce risk, and pinning base image digests ensures reproducibility. Option A (unit tests after deployment) is too late. Option C (direct deployment to production) bypasses safety checks.
What should I do if I get this PDE question wrong?
Identify which PDE 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.
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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