Exam 220-1101 topic 1 question 447 discussion

Reasoning: 1. Hypervisor Type: Type II hypervisors, also known as hosted hypervisors, run on top of a host operating system. They provide a higher level of isolation from the host operating system compared to other options. 2. Isolation: Type II hypervisors, such as VirtualBox or VMware Workstation, create a separate environment for virtual machines, isolating them from the host operating system. This isolation provides a higher level of security and stability. Why the Other Options Are Less Suitable: C. Hardware-assisted virtualization: Hardware-assisted virtualization, such as Intel VT-x or AMD-V, is a technology that enables virtualization by providing hardware-level support for virtual machines. While it enhances virtualization performance, it doesn't provide a higher level of isolation from the host operating system.

A type II hypervisor is a software application that runs on top of a host operating system and creates virtual machines that are isolated from the host. A type II hypervisor provides the highest level of isolation from the host operating system because it does not have direct access to the hardware resources and relies on the host operating system for drivers and services. A type II hypervisor also allows the guest operating systems to run different types of operating systems than the host. References: The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook, page 223

Hardware-assisted virtualization (VT-x, AMD-V) is NOT a hypervisor—it’s a feature that helps hypervisors run better. A Type II hypervisor actually manages VMs and enforces isolation from the host OS. If the question had included "Type I Hypervisor", that would have been the best answer because it provides the highest isolation. Since it wasn’t an option, Type II Hypervisor is the best available choice. If the question had included Type 1 Hypervisor, it would have been the best answer for highest isolation. Hardware-assisted virtualization alone doesn’t isolate—it enables better virtualization.

The answer is C. Hardware-assisted virtualization.

Hardware-assisted virtualization, often implemented through technologies like Intel VT-x or AMD-V, allows the hypervisor to directly manage hardware resources, enhancing the isolation between virtual machines (VMs) and the host operating system. With hardware-assisted virtualization, VMs have more direct access to physical hardware resources, reducing the potential for interference or compromise from the host operating system.

The option that provides the highest level of isolation from the host operating system is: C. Hardware-assisted virtualization Explanation: Hardware-assisted virtualization, often supported by modern CPUs, provides a higher level of isolation between virtual machines and the host operating system. This is achieved through hardware features such as Intel VT-x or AMD-V.