A company is migrating its application servers to an Infrastructure as a Service (IaaS) cloud provider. The IT team is debating who is responsible for applying security patches to the guest operating systems on the virtual machines. Which cloud computing concept should they consult to clarify this division of duties?
The correct answer is the Shared Responsibility Model. This model outlines the security obligations of the cloud service provider versus the customer. In an IaaS model, the provider is responsible for the security of the cloud (i.e., the physical infrastructure), while the customer is responsible for security in the cloud. This includes securing and patching the guest operating system, managing applications, and protecting data. A Service Level Agreement (SLA) focuses on service performance metrics like uptime and response times, not the comprehensive division of security duties. The Cloud Control Matrix is a specific framework of security controls used for assessment and compliance, not the high-level conceptual model of responsibility itself.
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What is the Shared Responsibility Model?
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How does the Shared Responsibility Model differ across cloud service types (IaaS, PaaS, SaaS)?
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Why is understanding the Shared Responsibility Model crucial for cloud security?