212-82 · Question #122
As a Virtualization Software Engineer/Analyst, you are employed on a Project with Alpha Inc. Company, the OS Virtualization is used for isolation of Physical/Base OS with the Hypervisor OS. What is…
The correct answer is B. Virtual machines are isolated from each other, preventing a security breach in one from impacting. A key security benefit of OS virtualization is isolation, where virtual machines are kept separate from each other and the host, preventing a security compromise in one VM from affecting others or the underlying hypervisor.
Question
As a Virtualization Software Engineer/Analyst, you are employed on a Project with Alpha Inc. Company, the OS Virtualization is used for isolation of Physical/Base OS with the Hypervisor OS. What is the security benefit of OS virtualization in terms of isolation?
Options
- AVirtual machines can freely access the resources of other VMs on the same host.
- BVirtual machines are isolated from each other, preventing a security breach in one from impacting
- CA compromised virtual machine can easily infect the physical host and other VMs.
- DOS virtualization offers no security benefits in isolation.
How the community answered
(23 responses)- A4% (1)
- B91% (21)
- D4% (1)
Why each option
A key security benefit of OS virtualization is isolation, where virtual machines are kept separate from each other and the host, preventing a security compromise in one VM from affecting others or the underlying hypervisor.
Virtual machines are designed to be isolated, not to freely access each other's resources, as this would negate the security benefits of virtualization.
OS virtualization, through the hypervisor, creates isolated environments for each virtual machine. This isolation prevents a security breach or malware infection within one virtual machine from directly impacting other virtual machines on the same host or the host operating system itself, thus containing potential damage.
While "hypervisor escape" attacks exist, a properly configured and patched virtualized environment is designed to prevent a compromised VM from easily infecting the physical host or other VMs, making this statement an oversimplification of a vulnerability, not the general behavior.
OS virtualization provides significant security benefits, particularly concerning isolation and sandboxing, making this statement entirely false.
Concept tested: Virtualization security isolation benefits
Source: https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/best-practices/run-virtual-machines-securely
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