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 scan of Windows servers reports few findings, but the scanner used no credentials. The security manager suspects missing patch data. What should be changed? For control selection, Which control best addresses the stated weakness without hiding risk?
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 the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Run authenticated scans using least-privilege scanner credentials
Unauthenticated scans only enumerate open ports and services visible without credentials, missing the patch status of installed software because they cannot query the Windows registry or WMI for installed updates. Running authenticated scans with least-privilege credentials allows the scanner to log into each target and retrieve detailed patch data via the Windows Update Agent API or registry keys, revealing missing patches that were previously invisible. This directly addresses the security manager's suspicion of missing patch data without introducing unnecessary risk.
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.
✓
Run authenticated scans using least-privilege scanner credentials
Why this is correct
Authenticated scanning gives the scanner access to installed software and patch state, improving accuracy.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increase only the port range
Why it's wrong here
More ports will not reveal installed patch levels reliably.
✗
Disable host firewalls permanently
Why it's wrong here
This is unnecessary and creates risk.
✗
Trust the unauthenticated result as complete
Why it's wrong here
Unauthenticated scans commonly miss local configuration and patch data.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that increasing scan depth (e.g., port range or intensity) compensates for lack of authentication, but the trap here is that patch data is only accessible through authenticated access, not by broader network scanning.
Detailed technical explanation
How to think about this question
Authenticated vulnerability scanning on Windows uses protocols such as WMI (Windows Management Instrumentation) over RPC (port 135) or WinRM (port 5985/5986) to query the Windows Update Agent for installed patches, or reads the registry key `HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall` for a list of installed updates. In a real-world scenario, an unauthenticated scan might show no critical findings, but an authenticated scan could reveal dozens of missing patches like MS17-010 (EternalBlue) that are invisible without credentials, making authentication essential for accurate vulnerability assessment.
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 developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
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: Run authenticated scans using least-privilege scanner credentials — Unauthenticated scans only enumerate open ports and services visible without credentials, missing the patch status of installed software because they cannot query the Windows registry or WMI for installed updates. Running authenticated scans with least-privilege credentials allows the scanner to log into each target and retrieve detailed patch data via the Windows Update Agent API or registry keys, revealing missing patches that were previously invisible. This directly addresses the security manager's suspicion of missing patch data without introducing unnecessary risk.
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.
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?
Read the scenario before looking for a memorised answer.
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Question Discussion
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