A hypervisor is the best operating system for creating and managing virtual machines (VMs). It allows multiple operating systems to run simultaneously on a single physical machine by abstracting hardware resources and allocating them to VMs. There are two types of hypervisors: Type 1 (bare-metal) and Type 2 (hosted). Examples include VMware ESXi, Microsoft Hyper-V, and Oracle VM VirtualBox.
A. Mobile operating systems (e.g., Android, iOS) are designed for mobile devices and are not suitable for managing virtual machines.
C. Embedded operating systems are optimized for specialized hardware, not for virtualization.
D. Firewall is a security system used to control network traffic, not an operating system for managing VMs.
References:
CompTIA Server+ Certification Objectives
Official CompTIA A+ Certification Guide
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