Network Defense Essentials (NDE) Practice Exam

What constitutes the virtual devices in a virtualization setup?

1. Only virtual machines

2. Hypervisor and host OS

3. Virtualized containers and VMs

4. Physical devices solely

The correct answer is: Virtualized containers and VMs

In a virtualization setup, virtual devices encompass a range of technologies that facilitate the abstraction of physical hardware, enabling more efficient resource utilization and flexibility in deployment. Virtualized containers and virtual machines (VMs) are both key components of this setup. Virtual machines are complete simulated environments that run their own operating system and applications. They allow for multiple OS environments to coexist on a single physical host. On the other hand, containers package applications along with their dependencies into standardized units, allowing them to run consistently across various computing environments. This makes containers lightweight and faster to start compared to traditional VMs because they share the host operating system's kernel rather than emulating a full OS. By acknowledging both virtualized containers and VMs as part of the virtual devices in a virtualization environment, this option accurately captures the diversity of ways in which virtualization can be utilized in modern computing environments, supporting various application needs and scaling requirements. This adaptability is a fundamental advantage of using virtualization technologies.