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CAS-005 · Question #438

A cloud security architect has been tasked with selecting the appropriate solution given the following: - The solution must allow the lowest RTO possible. - The solution must have the least shared res

The correct answer is D. SaaS. Of the models listed, a Software-as-a-Service solution places nearly all infrastructure, platform, and application management, and thus patching, squarely on the cloud provider. That minimizes your shared-responsibility footprint and gives you the fastest possible recovery (lowes

Submitted by rachelw· Mar 6, 2026Security Architecture

Question

A cloud security architect has been tasked with selecting the appropriate solution given the following:

  • The solution must allow the lowest RTO possible.
  • The solution must have the least shared responsibility possible.
  • Patching should be a responsibility of the CSP.

Which of the following solutions can best fulfill the requirements?

Options

  • APaaS
  • BIaaS
  • CPrivate
  • DSaaS

How the community answered

(50 responses)
  • A
    18% (9)
  • B
    8% (4)
  • C
    4% (2)
  • D
    70% (35)

Explanation

Of the models listed, a Software-as-a-Service solution places nearly all infrastructure, platform, and application management, and thus patching, squarely on the cloud provider. That minimizes your shared-responsibility footprint and gives you the fastest possible recovery (lowest RTO) since failovers and restorations are handled entirely by the CSP.

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