Discover how virtual switches provide essential connectivity between virtual machines, allowing efficient communication and data exchange within virtualized environments.
Table of Contents
Question
Which function does a virtual switch provide?
A. RAID storage for virtual machines
B. connectivity between virtual machines
C. CPU context switching for multitasking between virtual machines
D. emulation of power for virtual machines
Answer
B. connectivity between virtual machines
Explanation
A virtual switch is a software-based network switch that operates within a virtualized environment, such as a hypervisor. Its primary function is to provide network connectivity between virtual machines (VMs) running on the same physical host. By emulating the functionality of a physical Ethernet switch, a virtual switch allows VMs to communicate with each other as if they were connected to a traditional network switch.
When multiple VMs are running on a single physical server, the virtual switch acts as a central point of connectivity. It forwards network traffic between the VMs based on their MAC addresses, similar to how a physical switch operates. This enables seamless communication and data exchange between VMs, regardless of their location within the virtualized environment.
Virtual switches also provide additional features, such as VLAN tagging, port mirroring, and quality of service (QoS) controls, which enhance security, monitoring, and performance management in virtual networks. However, they do not provide RAID storage, CPU context switching, or power emulation for VMs, as these functions are handled by other components of the virtualization infrastructure.
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