- A
Syft
Why wrong: Generates SBOMs, not vulnerability scanning.
- B
Checkov
Why wrong: Scans infrastructure as code, not container images.
- C
Kubesec
Why wrong: Scans Kubernetes manifests, not container images.
- D
Trivy
Trivy scans container images for known vulnerabilities.
Question 749 of 997
Best Tool for Container Image Vulnerability Scanning in CI Pipeline
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 security scan report shows that a container image has several high-severity CVEs. The team wants to implement automated scanning in CI/CD pipeline. Which tool would you recommend for scanning container images in a CI pipeline?
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
✓
Trivy
Trivy is a comprehensive, open-source vulnerability scanner specifically designed for container images, filesystems, and Git repositories. It integrates seamlessly into CI/CD pipelines, detects high-severity CVEs by cross-referencing image layers against multiple vulnerability databases (e.g., NVD, Red Hat, Alpine), and provides actionable remediation advice. This makes it the correct choice for automated scanning of container images in a CI pipeline.
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.
- ✗
Syft
Why it's wrong here
Generates SBOMs, not vulnerability scanning.
- ✗
Checkov
Why it's wrong here
Scans infrastructure as code, not container images.
- ✗
Kubesec
Why it's wrong here
Scans Kubernetes manifests, not container images.
- ✓
Trivy
Why this is correct
Trivy scans container images for known vulnerabilities.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The CKS exam often tests the distinction between SBOM generation tools (like Syft) and vulnerability scanners (like Trivy), causing candidates to confuse the purpose of each tool in the supply chain security context.
Detailed technical explanation
How to think about this question
Trivy works by extracting the OS package database (e.g., dpkg status, RPM DB) and application dependency files (e.g., pom.xml, package-lock.json) from each layer of the container image, then matching installed package versions against known CVE feeds. It supports offline scanning with a pre-downloaded vulnerability database, which is critical for air-gapped CI environments. A subtle behavior: Trivy can also detect vulnerabilities in language-specific packages (e.g., Python, Node.js, Java) that are not part of the base OS, providing broader coverage than traditional OS-only scanners.
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.
Quick reference
OSI Model Reference
| Layer | Name | PDU | Key Protocols / Devices |
|---|---|---|---|
| 7 | Application | Data | HTTP, HTTPS, DNS, SMTP, FTP, SSH |
| 6 | Presentation | Data | TLS / SSL, JPEG, ASCII encoding |
| 5 | Session | Data | NetBIOS, RPC, SIP |
| 4 | Transport | Segment / Datagram | TCP, UDP |
| 3 | Network | Packet | IP, ICMP, OSPF — Routers |
| 2 | Data Link | Frame | Ethernet, Wi-Fi, PPP — Switches, Bridges |
| 1 | Physical | Bits | Cables, NICs, Hubs, Repeaters |
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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All CKS questions
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Certified Kubernetes Security Specialist CKS study guide
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CKS practice test 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: Trivy — Trivy is a comprehensive, open-source vulnerability scanner specifically designed for container images, filesystems, and Git repositories. It integrates seamlessly into CI/CD pipelines, detects high-severity CVEs by cross-referencing image layers against multiple vulnerability databases (e.g., NVD, Red Hat, Alpine), and provides actionable remediation advice. This makes it the correct choice for automated scanning of container images in a CI pipeline.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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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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