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CAS-005 · Question #20

CAS-005 Question #20: Real Exam Question with Answer & Explanation

The correct answer is A: Implementing allow lists. Implementing allow lists restricts communication to only approved addresses or services, reducing exposure to unauthorized access. Establishing a site-to-site IPSec VPN secures data transmission over the internet, protecting OT systems from interception or tampering.

Submitted by lucia.co· Mar 6, 2026Security Architecture

Question

A company isolates its ОТ systems from other areas of the corporate network. These systems are required to report usage information over the internet to the vendor. Which of the following best prevents compromise or sabotage? (Choose two.)

Options

  • AImplementing allow lists
  • BMonitoring network behavior
  • CEncrypting data at rest
  • DPerforming boot Integrity checks
  • EExecuting daily health checks
  • FImplementing a site-to-site IPSec VPN

Explanation

Implementing allow lists restricts communication to only approved addresses or services, reducing exposure to unauthorized access. Establishing a site-to-site IPSec VPN secures data transmission over the internet, protecting OT systems from interception or tampering.

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