Your network contains an Active Directory domain named contoso.com. The domain
contains a member server named HVServer1. HVServer1 runs Windows Server 2012 R2
and has the Hyper-V server role installed.
HVServer1 hosts 10 generation 1 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 Server1. You authorize
Server1 as a DHCP server in contoso.com. You create an IP scope.
You discover that the virtual machines connected to Switch1 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.
Enable single-root I/O visualization (SR-IOV) on Server1.
C.
Disable the DHCP guard on Server1.
D.
Disable the DHCP guard on all of the virtual machines that are DHCP clients.
Explanation:
DHCP guard setting
This setting stops the virtual machine from making DHCP offers over this network interface.
To be clear – this does not affect the ability to receive a DHCP offer (i.e. if you need to use
DHCP to acquire an IP address that will work) it only blocks the ability for the virtual machine
to act as a DHCP server.
Ok once again i don’t agree with the answer. DHCP guard can only be enable on virtual machines, so the correct answer would be D, Disable the DHCP guard on all of the virtual machines that are DHCP clients.
If i’m not right please correct me.
http://windowsitpro.com/hyper-v/using-hyper-v-dhcp-guard-feature
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Ok, sorry, my mistake, answer is C. Disable DHCP guard on Server1 which is the virtual machine that has DHCP server. At first, i misread the question, for that i apologize.
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I dont get it. Could someone help please?
“You need to ensure that the virtual machines can use Server1 as a DHCP server.”
C answer: Disable the DHCP guard on Server1.
Explanation: …it only blocks the ability for the virtual machine
to act as a DHCP server.
??? Iam confused completely!
Cheers!
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Balazs,
Server 1 is also a virtual machine hosted on HVServer1, therefore dhcp guard should be disabled since this prevents VM’s from being a DHCP server.
Please correct me if wrong.
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Hello,
DHCP guard prevents vm to be DHCP server, so option should be removed from parameters of vm1, and option should be set on all the other of vm.
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C correct!
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