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Question 467 - CAS-004 discussion

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A control systems analyst is reviewing the defensive posture of engineering workstations on the shop floor. Upon evaluation, the analyst makes the following observations:

* Unsupported, end-of-life operating systems were still prevalent on the shop floor.

* There are no security controls for systems with supported operating systems.

* There is little uniformity of installed software among the workstations.

Which of the following would have the greatest impact on the attack surface?

A.
Deploy antivirus software to all of the workstations.
Answers
A.
Deploy antivirus software to all of the workstations.
B.
Increase the level of monitoring on the workstations.
Answers
B.
Increase the level of monitoring on the workstations.
C.
Utilize network-based allow and block lists.
Answers
C.
Utilize network-based allow and block lists.
D.
Harden all of the engineering workstations using a common strategy.
Answers
D.
Harden all of the engineering workstations using a common strategy.
Suggested answer: D

Explanation:

Hardening the engineering workstations using a consistent strategy would have the greatest impact on reducing the attack surface. The workstations are running outdated and unsupported operating systems, with no security controls, and inconsistent software installations, which significantly increases the risk of exploitation. Hardening involves applying patches, reducing unnecessary software, disabling unused services, and ensuring uniform security controls across all systems. By addressing these vulnerabilities and inconsistencies, the overall security posture improves significantly, which aligns with CASP+ best practices on reducing attack surfaces by standardizing and securing endpoint configurations.

CASP+ CAS-004 Exam Objectives: Domain 1.0 -- Risk Management (Vulnerability Management, System Hardening)

CompTIA CASP+ Study Guide: Hardening Techniques and Attack Surface Reduction

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asked 02/10/2024
Anass Chadid ansari
38 questions
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