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.
A CI/CD pipeline builds a Docker image and pushes it to a registry. To ensure supply chain security, the pipeline should scan the image for vulnerabilities before deployment. Which of the following is the correct command to scan a local Docker image using Trivy?
trivy fs --image myimage:latest
Why wrong: 'trivy fs' scans a filesystem, not a container image.
trivy image myimage:latest
This command scans the specified container image for vulnerabilities.
trivy scan myimage:latest
Why wrong: 'trivy scan' is not a valid subcommand; the correct subcommand is 'image'.
trivy check myimage:latest
Why wrong: 'trivy check' is not a valid subcommand.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
trivy image myimage:latest
The correct command to scan a local image with Trivy is 'trivy image <image-name>'. The other options are incorrect flags or commands.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
trivy fs --image myimage:latest
Why it's wrong here
'trivy fs' scans a filesystem, not a container image.
trivy image myimage:latest
Why this is correct
This command scans the specified container image for vulnerabilities.
Related concept
Read the scenario before looking for a memorised answer.
trivy scan myimage:latest
Why it's wrong here
'trivy scan' is not a valid subcommand; the correct subcommand is 'image'.
trivy check myimage:latest
Why it's wrong here
'trivy check' is not a valid subcommand.
Common exam traps
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.
Trap categories for this question
Command / output trap
'trivy scan' is not a valid subcommand; the correct subcommand is 'image'.
Detailed technical explanation
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
Identify which CKS 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
Supply Chain Security — This question tests Supply Chain Security — Read the scenario before looking for a memorised answer..
The correct answer is: trivy image myimage:latest — The correct command to scan a local image with Trivy is 'trivy image <image-name>'. The other options are incorrect flags or commands.
Identify which CKS 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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 21, 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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