In an IaaS Model, to Which of the Following Methodologies

Multiple Choice

In an IaaS model, to which of the following methodologies would the client apply a list of OS patches, assuming approval from CAB has been given?

A) Using a patch management system, identify the hypervisor type, select a group of hypervisors to be patched, and perform a rolling application of patches.
B) Using a patch management system, identify the guests that require patching, and select and apply the patches.
C) Using a patch management system, identify the applications needing the patch, select the required application in a patch management console, and apply the patches.
D) Using a patch management system, identify the services that require patching, and select and apply the patches.