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ISC2 Systems Security Certified Practitioner (SSCP) Practice Question

Your security team is preparing to deploy a strict "default-deny" application whitelisting policy across all Windows-based EC2 instances that host line-of-business applications. While the approach will block unapproved software, operations staff are worried about ongoing maintenance. Which issue represents a well-known implementation challenge they should plan to mitigate before rollout?

  • The primary difficulty is a sharp increase in outbound bandwidth because the whitelisting agent inspects every TLS session in real time.

  • Legitimate software updates routinely change executable hashes, requiring constant whitelist revisions to prevent blocking approved applications.

  • The solution will compel administrators to disable User Account Control (UAC) on each Windows instance for the whitelist to function.

  • Application whitelisting cannot recognize digitally signed executables, so all commercial software must be repackaged before deployment.

ISC2 Systems Security Certified Practitioner (SSCP)
Systems and Application Security
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