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I disagree with this answer. In my own opinion, the infrastructure security is managed by the cloud provider so here, the most important cloud logical model is the Metastructure. That one security is the used for configuration and management of cloud deployment.
This is a tricky question. While the Metastructure is definitely, without a doubt important, they are combining it with answers that look like IaaS,PaaS,SaaS.
But they are talking about the actual physical infrastructure, which without its 10000000% security, nothing else can be secure. This is because the physical infrastructure is what everything else is built on.
Imagine if you will that the CSP is in a collocated facility and many people who are not part of the CSP can walk around the building. Now imagine if they gain access to the physical servers. Would it really matter at that point if the metastructure was "secured". No it wouldn't because physical access always beats virtual access.
A is the correct answer ... Domain 7 infrastructure Security ... 7.0 Introduction first paragraph..Infrastructure security is the foundation for operating securely in the cloud
Who is the audience of this question. Is it the cloud provider? Then Infrastructure definitely. If you are the cloud user, the infrastructure layer, while managed by the provider, is still critically important to secure cloud ops.
The correct answer is the Metastructure (as others had said). Domain 6 of Security Guide is about the management plane and it is mentioned as the most important difference from Security perspective when we compare the Cloud based architectures with the Traditional ones.
Infrastructure: The core components of a computing system: compute, network, and storage. The foundation that everything else is built on. The moving parts.
Correct Answer : A
there is no data structure layer, follow the sequence of as mentioned in ccsk guide,
infrastructure > metastructure > applistructure > infostructure
so answer is infrastructure
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