Microsoft Exam Questions

You need to ensure that the virtual machines can use Server1 as a DHCP server

Your network contains an Active Directory domain named contoso.com. The domain contains a member server
named HVServer1. HVServer1 runs Windows Server 2012and has the Hyper-V server role installed.
HVServer1 hosts 10 virtual machines. All of the virtual machines connect to a virtual switch named Switch1.
Switch1 is configured as a private network. All of the virtual machines have the DHCP guard and the router
guard settings enabled.
You install the DHCP server role on a virtual machine named Server 1. You authorize Server1 as a DHCP
server in contoso.com. You create an IP scope.
You discover that the virtual machines connected toSwitch1 do not receive IP settings from Server1.
You need to ensure that the virtual machines can use Server1 as a DHCP server.
What should you do?

A.
Enable MAC address spoofing on Server1.

B.
Disable the DHCP guard on all of the virtual machines that are DHCP clients.

C.
Disable the DHCP guard on Server1.

D.
Enable single-root I/O virtualization (SR-IOV) onServer1.

Explanation:
SR-IOV enables network traffic to bypass the software switch layer of the Hyper-V virtualization stack.
Becausethe VF is assigned to a child partition, thenetwork traffic flows directly between the VF and child
partition. As aresult, the I/O overhead in the software emulation layer is diminished and achieves network
performance that isnearly the same performance as in nonvirtualized environments.