What Characterizes a Type 2 Hypervisor?

Why the Answer Is Correct

A Type 2 hypervisor — also called a hosted hypervisor — is installed as a software application on an already-running general-purpose OS such as Windows, macOS, or Linux, and it borrows CPU, memory, storage, and network access from that host OS. Products like Oracle VirtualBox and VMware Workstation follow this model: you install them like any other app, then create VMs inside them. That dependency on a host OS is the single defining trait the question is testing, and it is exactly what option B states. As Elle put it, a Type 2 hypervisor "runs on top of a standard operating system like Windows Mac or Linux" and relies on it for hardware access and system resources. Because the hypervisor shares the host's scheduler and drivers, it is easy to deploy but cannot match the performance and isolation of a bare-metal hypervisor.

Why the Other Options Are Wrong

Option A (bare-metal installation) describes a Type 1 hypervisor such as VMware ESXi or Microsoft Hyper-V, which installs directly on hardware with no intervening OS — the opposite of Type 2. Option C (local management only) is not a Type 2 trait at all; hosted hypervisors like VirtualBox and Workstation offer command-line tools and remote/API management, and Type 1 platforms such as ESXi and vCenter are far more commonly associated with centralized management anyway. Option D (specific hardware requirements) is the attractive distractor: virtualization does benefit from hardware-assisted virtualization (Intel VT-x/AMD-V) and adequate RAM, but demanding hardware is characteristic of Type 1 hypervisors, while Type 2 tools generally run on ordinary consumer-grade laptops and desktops. As 351199f noted, "Type 1 does NOT need an underlying OS while Type 2 absolutely does" — that contrast, not hardware, is what separates the two.

Community Comment Notes

Consensus in the comments is strongly behind option B, with voters explaining the hosted model in the same terms the exam expects: the hypervisor is installed on top of a fully functional OS and requests resources from it. cybergrl35 framed it as the "defining characteristic" of hosted hypervisors, and several voters (ishan94, sphazarock) echoed that a Type 2 hypervisor "runs on top of an existing operating system." The lone dissenting vote from dddba0a for option D illustrates precisely the distractor the exam writers rely on — hardware matters for virtualization in general, but it is not what makes a hypervisor Type 2. Note that the source key was blank/unknown, so the community reasoning and the vendor definition of hosted hypervisors both drive the verdict here rather than any answer key.