What describes a Virtual Switch or Router?

• A. A logical entity that provides routing and switching for virtual networks within a virtualization platform.
• B. A physical router installed in data center.
• C. A security appliance that filters traffic.
• D. A software utility for managing VLANs on physical switches.

Answer: (A)

A Virtual Switch or Router is a software-defined, logical network device inside a virtualization platform that provides switching and routing for virtual networks. It handles traffic between virtual machines on the same host and across hosts, and can route traffic between different virtual networks or to external networks. This is not a physical router or a gear installed in a data center, nor is it merely a security appliance or a tool for managing VLANs on physical switches. In virtualization, these virtual network devices enable connectivity, isolation, and traffic control for VMs, which supports network segmentation and security practices relevant to PCI DSS.