350-401 · Question #287
350-401 Question #287: Real Exam Question with Answer & Explanation
The correct answer is D: ability to operate on hardware that is running other OSs. Type 1 vs. Type 2 Hypervisors A Type 2 hypervisor (also called a "hosted" hypervisor) runs on top of an existing operating system, meaning it can be installed and used on a machine that is already running a host OS like Windows or macOS - making option D correct. This is actually
Question
What is a benefit of using a Type 2 hypervisor instead of a Type 1 hypervisor?
Options
- Abetter application performance
- BImproved security because the underlying OS is eliminated
- CImproved density and scalability
- Dability to operate on hardware that is running other OSs
Explanation
Type 1 vs. Type 2 Hypervisors
A Type 2 hypervisor (also called a "hosted" hypervisor) runs on top of an existing operating system, meaning it can be installed and used on a machine that is already running a host OS like Windows or macOS - making option D correct. This is actually the defining characteristic of Type 2 (e.g., VMware Workstation, VirtualBox), and it makes it ideal for developers or students who need virtualization without dedicating hardware.
Why the distractors are wrong:
- A (better performance): Type 1 hypervisors actually offer better performance because they run directly on hardware with no host OS overhead.
- B (improved security by eliminating the OS): It's Type 1 hypervisors that eliminate the underlying OS - Type 2 depends on a host OS, which actually increases the attack surface.
- C (density and scalability): Type 1 hypervisors are superior for density and scalability, which is why they're used in enterprise data centers.
🧠 Memory Tip: Think of Type 2 as having 2 layers (host OS + hypervisor), while Type 1 sits first directly on the bare metal. If you need to run VMs alongside your regular computer use, that's a Type 2 benefit.
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