正解:A
A sandbox is an isolated environment typically used for testing software or running applications without affecting the host system. The isolated nature of a sandbox allows users to run applications or even entire operating systems in a contained virtual machine, which prevents potential harm to the primary system.
A . Sandbox: A sandbox is an isolated virtual machine environment where users can test new applications or software safely.
Why the other options are incorrect:
B . Hypervisor: A hypervisor is software that manages multiple virtual machines (VMs), but it is not an isolated VM itself.
C . Container: Containers isolate applications but are not fully isolated virtual machines. Containers share the host OS kernel, while sandboxes provide a full virtualized environment.
D . VDI (Virtual Desktop Infrastructure): VDI provides a desktop environment hosted on a centralized server. It is not the same as an isolated virtual machine for testing purposes.
This is covered under the Virtualization domain in the CompTIA A+ Core 1 exam.