- A
Trivy
Trivy can generate SBOMs in addition to vulnerability scanning.
- B
Cosign
Why wrong: Cosign is for signing and verifying images, not SBOM generation.
- C
Syft
Syft generates SBOMs from container images and filesystems.
- D
Clair
Why wrong: Clair is a vulnerability scanner, not an SBOM generator.
- E
Kubesec
Why wrong: Kubesec is a static analysis tool for Kubernetes manifests, not for SBOM generation.
Question 506 of 997
Generating SBOMs with Trivy and Syft for Container Images
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.
Which TWO of the following are tools that can be used to generate an SBOM for a container image?
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 vulnerability scanner that can also generate Software Bill of Materials (SBOM) for container images. It supports multiple output formats such as CycloneDX and SPDX, making it a valid tool for SBOM generation. Syft is specifically designed to generate SBOMs from container images and filesystems, producing output in formats like CycloneDX, SPDX, and Syft's own JSON format. Both tools are widely used in supply chain security workflows.
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.
- ✓
Trivy
Why this is correct
Trivy can generate SBOMs in addition to vulnerability scanning.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Cosign
Why it's wrong here
Cosign is for signing and verifying images, not SBOM generation.
- ✓
Syft
Why this is correct
Syft generates SBOMs from container images and filesystems.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Clair
Why it's wrong here
Clair is a vulnerability scanner, not an SBOM generator.
- ✗
Kubesec
Why it's wrong here
Kubesec is a static analysis tool for Kubernetes manifests, not for SBOM generation.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The CKS exam often tests the distinction between tools that generate SBOMs (like Syft and Trivy) versus tools that consume, sign, or attach SBOMs (like Cosign), causing candidates to confuse signing capabilities with SBOM generation.
Detailed technical explanation
How to think about this question
SBOM generation tools like Syft and Trivy parse container image layers and extract package metadata from package managers (e.g., dpkg, RPM, apk, pip, npm) to create a dependency tree. Syft uses a modular 'cataloger' architecture to identify packages, while Trivy leverages its vulnerability database and package detection logic to produce SBOMs in CycloneDX or SPDX formats. In a real-world CI/CD pipeline, generating an SBOM early allows teams to track dependencies, enforce license compliance, and correlate vulnerabilities with specific packages.
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.
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 vulnerability scanner that can also generate Software Bill of Materials (SBOM) for container images. It supports multiple output formats such as CycloneDX and SPDX, making it a valid tool for SBOM generation. Syft is specifically designed to generate SBOMs from container images and filesystems, producing output in formats like CycloneDX, SPDX, and Syft's own JSON format. Both tools are widely used in supply chain security workflows.
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 →
Same concept, more angles
1 more ways this is tested on CKS
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A security team wants to generate an SBOM for a container image. Which tool should they use?
hard- A.Clair
- B.Trivy
- C.Cosign
- ✓ D.Syft
Why D: Syft is a CLI tool specifically designed to generate a Software Bill of Materials (SBOM) from container images and filesystems. It can output SBOMs in multiple formats, including CycloneDX and SPDX, which are the industry-standard formats for SBOMs. This makes Syft the correct choice for the security team's requirement.
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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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