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. A key principle to apply: independent verification is crucial in cybersecurity.. 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 scanner flags TLS 1.0 on a server, but the service owner says TLS 1.0 is disabled. What is the BEST validation method? 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
✓
Manually test the service with a TLS client or scanner profile that negotiates protocol versions
Option D is correct because the best validation method is to manually test the service using a TLS client (e.g., OpenSSL s_client) or a scanner profile that explicitly attempts to negotiate TLS 1.0. This directly verifies whether the server truly rejects TLS 1.0 handshakes, eliminating false positives from scanner misconfiguration or version negotiation quirks. Relying on the owner's assertion or altering the finding without technical proof would violate vulnerability management best practices.
Key principle: Independent verification is crucial in cybersecurity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Close the finding because the owner disagrees
Why it's wrong here
Owner statements need evidence before closure.
✗
Change the severity to informational automatically
Why it's wrong here
Severity should reflect verified exposure, not disagreement.
✗
Delete the server from the scan scope
Why it's wrong here
Removing assets hides risk and breaks governance.
✓
Manually test the service with a TLS client or scanner profile that negotiates protocol versions
Why this is correct
Direct protocol validation determines whether TLS 1.0 is actually accepted.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Independent verification is crucial in cybersecurity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that a service owner's claim or a scanner's default severity should override manual technical verification, tempting candidates to choose administrative actions (A, B, C) instead of the rigorous validation step (D).
Detailed technical explanation
How to think about this question
TLS version negotiation occurs during the ClientHello handshake; a server configured to disable TLS 1.0 should respond with a 'handshake failure' alert or fall back to a higher version if supported. Using OpenSSL's `s_client -tls1` command forces a TLS 1.0 connection attempt, providing definitive proof. In real-world scenarios, scanner false positives often arise from default scan profiles that test only higher TLS versions, or from intermediate load balancers that terminate TLS differently than the backend server.
KKey Concepts to Remember
Independent verification is crucial in cybersecurity.
Vulnerability scanner findings require validation, especially when disputed.
Trust but verify principle applies to service owner statements.
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
Independent verification is crucial in cybersecurity.
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 — Independent verification is crucial in cybersecurity..
What is the correct answer to this question?
The correct answer is: Manually test the service with a TLS client or scanner profile that negotiates protocol versions — Option D is correct because the best validation method is to manually test the service using a TLS client (e.g., OpenSSL s_client) or a scanner profile that explicitly attempts to negotiate TLS 1.0. This directly verifies whether the server truly rejects TLS 1.0 handshakes, eliminating false positives from scanner misconfiguration or version negotiation quirks. Relying on the owner's assertion or altering the finding without technical proof would violate vulnerability management best practices.
What should I do if I get this CS0-003 question wrong?
Review independent verification is crucial in cybersecurity., then practise related CS0-003 questions on the same topic to reinforce the concept.
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?
Independent verification is crucial in cybersecurity.
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Question Discussion
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