Home » Cisco » 350-080 » Which two statements about Cisco Nexus 1000V Series Switches are correct?
Which two statements about Cisco Nexus 1000V Series Switches are correct? (Choose two.)
A. When VSM interfaces are created for a virtual machine, the VMware vSwitch port-group configuration is used initially, which requires the creation of a port-group name for these interfaces and an appropriate VLAN. The simplest configuration is to create a single port group (for example, VSMInterfaces), that includes all the interfaces that use this port group and the same VLAN.
B. The mgmt0 interface on the VSM does not necessarily require its own VLAN. In fact, you can use the same VLAN to which the VMware vCenter Server belongs. The VSM management VLAN is really no different from any other virtual machine data VLAN. Alternatively, network administrators can designate a special VLAN for network device management.
C. Always deploy the Cisco Nexus 1000V Series VSM in pairs, with one VSM that is defined as the primary module and the other that is defined as the secondary module on two separate hosts.
D. The service console is a critical interface that resides on every logical server.
Correct Answer: BC
Explanation/Reference:
Explanation:
Always deploy the Cisco Nexus 1000V Series VSM in pairs, with one VSM defined as the primary module and the other defined as the secondary module on two separate hosts. The two VSMs will run as an active-standby pair similar to supervisors in a physical chassis, offering high-availability switch management. The Cisco Nexus 1000V Series VSM is not in the data path, so even if both VSMs are powered down, the VEM will not be affected and will continue to forward traffic.
Each VSM in an active-standby pair is required to run on a separate VMware ESX host. This requirement helps ensure high availability even if one of the VMware ESX servers fails. You can also use the anti-affinity option in VMware ESX to help keep the VSMs on different servers. This option does not prevent the VSMs from ending up on the same server; anti-affinity prevents VMware Distributed Resource Scheduler (DRS) from moving the virtual machines to new machines. If the VSMs end up on the same host due to VMware High Availability, VMware DRS will post a five-star recommendation to move one of the VSMs.
Reference: http://www.cisco.com/c/en/us/products/collateral/switches/nexus-1000v-switch-vmware-vsphere/guide_c07-556626.html (management vlan; VSM High-Availability Deployment)