CompTIA Cloud+ Practice Test

In an IaaS model, how should a client apply a list of OS patches after CAB approval?

1. Identify the hypervisor type, select a group of hypervisors to be patched, and perform a rolling application of patches

2. Identify the guests that require patching, and select and apply the patches

3. Identify the applications needing the patch, select the required application in a patch management console, and apply the patches

4. Identify the services that require patching, and select and apply the patches

The correct answer is: Identify the hypervisor type, select a group of hypervisors to be patched, and perform a rolling application of patches

In an Infrastructure as a Service (IaaS) model, the correct approach to applying a list of operating system (OS) patches after receiving Change Advisory Board (CAB) approval is to identify the hypervisor type, select a group of hypervisors to be patched, and then perform a rolling application of patches. This method is suitable for several reasons. First, in an IaaS environment, the service provider is typically responsible for managing the hypervisor layer, which means that patches are often applied at this level to ensure security and stability of the virtualized environment. By focusing on the hypervisor type and applying patches to a group of hypervisors, it enables the administrator to maintain uptime, as rolling updates can be managed to prevent service disruption. Moreover, this approach allows for better management of the patching process. By performing updates in a rolling manner, an administrator can apply patches to one hypervisor or set of hypervisors at a time. This ensures that if any issues arise during the patching process, not all virtual machines would be affected simultaneously, which enhances overall system resilience. Additionally, this strategy aligns with best practices in IT operations, allowing for monitoring and tests to be conducted throughout the process. This careful application ensures that