This CS0-003 practice question tests your understanding of vulnerability management. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 is implementing a vulnerability management program. Which of the following are essential components of a vulnerability management lifecycle? (Choose three.)
Vulnerability scanning and assessment.
Core activity to identify vulnerabilities.
Discovery and inventory of assets.
Essential first step to know what to scan.
Penetration testing on all systems.
Why wrong: Separate assessment, not part of continuous lifecycle.
Remediation and verification.
Closes the lifecycle by fixing and confirming.
Automated patch deployment.
Why wrong: Part of remediation but not a distinct lifecycle phase.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Vulnerability scanning and assessment.
Vulnerability scanning and assessment is a core component of the vulnerability management lifecycle because it involves actively identifying security weaknesses in systems, applications, and network devices using tools like Nessus or Qualys. This step provides the raw data—CVEs, missing patches, misconfigurations—that drives the entire remediation process. Without regular scanning, the organization cannot maintain an accurate picture of its security posture.
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.
Vulnerability scanning and assessment.
Why this is correct
Core activity to identify vulnerabilities.
Related concept
Read the scenario before looking for a memorised answer.
Discovery and inventory of assets.
Why this is correct
Essential first step to know what to scan.
Related concept
Read the scenario before looking for a memorised answer.
Penetration testing on all systems.
Why it's wrong here
Separate assessment, not part of continuous lifecycle.
Remediation and verification.
Why this is correct
Closes the lifecycle by fixing and confirming.
Related concept
Read the scenario before looking for a memorised answer.
Automated patch deployment.
Why it's wrong here
Part of remediation but not a distinct lifecycle phase.
Common exam traps
CompTIA often tests the distinction between vulnerability scanning (continuous, automated, non-intrusive) and penetration testing (periodic, manual, intrusive) to see if candidates confuse the two as interchangeable lifecycle components.
Detailed technical explanation
The vulnerability management lifecycle, as defined by frameworks like NIST SP 800-40 and ISO 27001, consists of five phases: discover (asset inventory), prioritize (risk assessment), assess (scanning), report (communication), and remediate (fixing and verifying). Discovery and inventory of assets (Option B) is the foundational step because you cannot scan what you do not know exists; tools like Nmap or asset management databases (CMDB) are used here. Remediation and verification (Option D) ensures that patches or configuration changes are applied and then rescanned to confirm the vulnerability is closed, which prevents false positives from lingering.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A security team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
What to study next
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FAQ
Vulnerability Management — This question tests Vulnerability Management — Read the scenario before looking for a memorised answer..
The correct answer is: Vulnerability scanning and assessment. — Vulnerability scanning and assessment is a core component of the vulnerability management lifecycle because it involves actively identifying security weaknesses in systems, applications, and network devices using tools like Nessus or Qualys. This step provides the raw data—CVEs, missing patches, misconfigurations—that drives the entire remediation process. Without regular scanning, the organization cannot maintain an accurate picture of its security posture.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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