- A
Remove the server from the network until it can be replaced
Why wrong: Removing the server would eliminate the vulnerability but would also stop the critical business process, causing significant disruption.
- B
Apply a vendor-supplied hotfix to mitigate the vulnerability
Why wrong: The vendor has declared EOL and does not provide hotfixes; this option is unavailable.
- C
Replace the server with a newer model that supports patching
Why wrong: Replacement is a long-term solution and does not address the immediate risk; also may not be feasible quickly.
- D
Implement network segmentation and strict access controls to limit exposure
Segmentation and access controls reduce the likelihood and impact of exploitation, providing a compensating control when patching is infeasible.
CS0-003 Vulnerability Management Practice Question
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 large enterprise uses a vulnerability management platform that integrates with Active Directory and a configuration management database (CMDB). During a quarterly scan, a critical vulnerability (CVE-2021-44228) is detected on a legacy application server running an end-of-life (EOL) version of Java. The server supports a critical business process and cannot be upgraded or patched because the vendor no longer provides updates. The analyst must reduce the risk to an acceptable level. What is the best approach?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Implement network segmentation and strict access controls to limit exposure
Network segmentation combined with strict access controls limits the attack surface and potential impact, providing a practical risk reduction when patching is not possible. Removing the server would disrupt business, hotfixes are unavailable, and replacement is a long-term project.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Remove the server from the network until it can be replaced
Why it's wrong here
Removing the server would eliminate the vulnerability but would also stop the critical business process, causing significant disruption.
- ✗
Apply a vendor-supplied hotfix to mitigate the vulnerability
Why it's wrong here
The vendor has declared EOL and does not provide hotfixes; this option is unavailable.
- ✗
Replace the server with a newer model that supports patching
Why it's wrong here
Replacement is a long-term solution and does not address the immediate risk; also may not be feasible quickly.
- ✓
Implement network segmentation and strict access controls to limit exposure
Why this is correct
Segmentation and access controls reduce the likelihood and impact of exploitation, providing a compensating control when patching is infeasible.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CS0-003 NAT questions on configuration and troubleshooting.
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Vulnerability Management — study guide chapter
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FAQ
Questions learners often ask
What does this CS0-003 question test?
Vulnerability Management — This question tests Vulnerability Management — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Implement network segmentation and strict access controls to limit exposure — Network segmentation combined with strict access controls limits the attack surface and potential impact, providing a practical risk reduction when patching is not possible. Removing the server would disrupt business, hotfixes are unavailable, and replacement is a long-term project.
What should I do if I get this CS0-003 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CS0-003 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 23, 2026
This CS0-003 practice question is part of Courseiva's free CompTIA 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 CS0-003 exam.
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