200-155 · Question #132
Which description of the role of a VEM on a Cisco Nexus 1000V Series Switch is true?
The correct answer is A. It switches the data traffic within the hypervisor. The Virtual Ethernet Module (VEM) on a Cisco Nexus 1000V Series Switch is a software component that resides within each hypervisor host and is responsible for switching data traffic between virtual machines.
Question
Which description of the role of a VEM on a Cisco Nexus 1000V Series Switch is true?
Options
- AIt switches the data traffic within the hypervisor.
- BIt configures the interfaces.
- CIt controls the software of the DVS.
- DIt conveys the control and packet VLAN IDs.
How the community answered
(25 responses)- A92% (23)
- C4% (1)
- D4% (1)
Why each option
The Virtual Ethernet Module (VEM) on a Cisco Nexus 1000V Series Switch is a software component that resides within each hypervisor host and is responsible for switching data traffic between virtual machines.
The VEM (Virtual Ethernet Module) is the data plane component of the Nexus 1000V, installed as a kernel module on each hypervisor host, and performs the actual switching of data packets between VMs on the same host and to the physical network.
The Virtual Supervisor Module (VSM) is responsible for configuring interfaces and managing the Cisco Nexus 1000V, not the VEM.
The VSM controls the software of the distributed virtual switch (DVS) and manages all associated VEMs; the VEM is the data plane, not the controller.
The VSM handles the control plane, including conveying configuration like VLAN IDs, to the VEMs; the VEM primarily executes the data forwarding based on this configuration.
Concept tested: Cisco Nexus 1000V VEM role
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000v/sw/4_0/install/guide/n1000v_install/vsg.html
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