CS0-003 Vulnerability Management Practice Question
This CS0-003 practice question tests your understanding of vulnerability management. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
During a vulnerability scan, the scanner reports a high number of open ports on a server that is supposed to be a hardened web server. The analyst investigates and finds that the server is running unnecessary services. Which of the following is the MOST effective long-term solution?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement a configuration management baseline and enforce it
Implementing a configuration management baseline and enforcing it (Option A) is the most effective long-term solution because it ensures that the server is consistently provisioned with only the necessary services and configurations. This approach uses tools like Ansible, Puppet, or Chef to automatically remediate drift, preventing unnecessary services from reappearing after manual changes or reboots. It addresses the root cause by codifying the desired state, rather than relying on ad-hoc fixes.
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.
✓
Implement a configuration management baseline and enforce it
Why this is correct
Configuration management ensures consistent hardening and drift detection.
Related concept
Read the scenario before looking for a memorised answer.
✗
Disable the unnecessary services manually
Why it's wrong here
Manual process is error-prone and not sustainable.
✗
Increase the frequency of vulnerability scans
Why it's wrong here
Scans detect issues but do not prevent them.
✗
Install a host-based firewall to block the ports
Why it's wrong here
Firewalls can be disabled or misconfigured; not a long-term solution.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the distinction between detection (scanning) and remediation (configuration management), and the trap here is that candidates choose a reactive control like a firewall or manual disabling instead of the proactive, automated enforcement that prevents the issue from recurring.
Detailed technical explanation
How to think about this question
Configuration management baselines leverage Infrastructure as Code (IaC) to define a server's desired state, often using tools like Ansible playbooks or PowerShell DSC. These baselines can include service control policies (e.g., ensuring `httpd` is enabled but `telnet` is disabled) and are enforced via periodic compliance checks or agent-based remediation. In a real-world scenario, a hardened web server should only have ports 80/TCP and 443/TCP open; a baseline would automatically disable services like SSH (port 22) or FTP (port 21) if they are not explicitly required, preventing configuration drift after patch cycles.
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 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CS0-003 question in full detail.
Vulnerability Management — This question tests Vulnerability Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Implement a configuration management baseline and enforce it — Implementing a configuration management baseline and enforcing it (Option A) is the most effective long-term solution because it ensures that the server is consistently provisioned with only the necessary services and configurations. This approach uses tools like Ansible, Puppet, or Chef to automatically remediate drift, preventing unnecessary services from reappearing after manual changes or reboots. It addresses the root cause by codifying the desired state, rather than relying on ad-hoc fixes.
What should I do if I get this CS0-003 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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Question Discussion
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