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CAS-005 · Question #251

CAS-005 Question #251: Real Exam Question with Answer & Explanation

The correct answer is C: Immutable. Immutable storage prevents data from being altered or deleted, ensuring integrity even during a ransomware attack. Combined with frequent snapshots, it can achieve an RPO of less than one hour, best meeting the business requirements.

Submitted by devops_kid· Mar 6, 2026Security Architecture

Question

A Chief Information Security Officer is concerned about the operational impact of ransomware. In the event of a ransomware attack, the business requires the integrity of the data to remain intact and an RPO of less than one hour. Which of the following storage strategies best satisfies the business requirements?

Options

  • AFull disk encryption
  • BRemote journaling
  • CImmutable
  • DRAID 10

Explanation

Immutable storage prevents data from being altered or deleted, ensuring integrity even during a ransomware attack. Combined with frequent snapshots, it can achieve an RPO of less than one hour, best meeting the business requirements.

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