- A
Delete the image entirely and do not deploy
Why wrong: The image can be fixed; deletion is unnecessary.
- B
Rebuild the image using updated base images and fix the identified vulnerabilities
Rebuilding with patches remediates vulnerabilities.
- C
Deploy the image anyway because vulnerabilities are common
Why wrong: Deploying with critical vulnerabilities is a security risk.
- D
Ignore the output and re-run the scan
Why wrong: Re-running the scan does not fix the issues.
Question 322 of 997
Trivy CRITICAL Vulnerabilities — Rebuild Image with Patches
This CKS practice question tests your understanding of supply chain security. 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.
An administrator runs 'trivy image myapp:1.0' and receives an output with several CRITICAL vulnerabilities. What is the best next step to ensure the image is secure before deployment?
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
✓
Rebuild the image using updated base images and fix the identified vulnerabilities
Option B is correct because the best practice for addressing container image vulnerabilities is to rebuild the image using updated base images and apply patches for the identified CVEs. Trivy reports vulnerabilities in the image layers, and simply deleting or ignoring them does not resolve the security issues; rebuilding with patched dependencies ensures the image is secure before deployment.
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.
- ✗
Delete the image entirely and do not deploy
Why it's wrong here
The image can be fixed; deletion is unnecessary.
- ✓
Rebuild the image using updated base images and fix the identified vulnerabilities
Why this is correct
Rebuilding with patches remediates vulnerabilities.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Deploy the image anyway because vulnerabilities are common
Why it's wrong here
Deploying with critical vulnerabilities is a security risk.
- ✗
Ignore the output and re-run the scan
Why it's wrong here
Re-running the scan does not fix the issues.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CNCF often tests the misconception that deleting or ignoring vulnerable images is acceptable, when the correct action is to remediate by rebuilding with updated base images and patching dependencies.
Detailed technical explanation
How to think about this question
Trivy scans container images by comparing installed package versions against vulnerability databases (e.g., NVD, Red Hat OVAL). Rebuilding the image involves updating the base image (e.g., from alpine:3.14 to alpine:3.15) and running package managers like apt-get upgrade or apk upgrade to patch libraries. In a CI/CD pipeline, this step should be automated with image scanning gates to prevent vulnerable images from reaching production.
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 practitioner preparing for the CKS exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Visual reference
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.
- →
Supply Chain Security — study guide chapter
Learn the concepts, then practise the questions
- →
Supply Chain Security practice questions
Targeted practice on this topic area only
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Certified Kubernetes Security Specialist CKS study guide
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FAQ
Questions learners often ask
What does this CKS question test?
Supply Chain Security — This question tests Supply Chain Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Rebuild the image using updated base images and fix the identified vulnerabilities — Option B is correct because the best practice for addressing container image vulnerabilities is to rebuild the image using updated base images and apply patches for the identified CVEs. Trivy reports vulnerabilities in the image layers, and simply deleting or ignoring them does not resolve the security issues; rebuilding with patched dependencies ensures the image is secure before deployment.
What should I do if I get this CKS question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This CKS practice question is part of Courseiva's free CNCF 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 CKS exam.
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