Your network contains an Active Directory domain named contoso.com.
The domain contains a server named Server1 that runs Windows Server 2012 R2 and has the
DHCP Server server role installed. Server1 has an IPv6 scope named Scope1.
You implement an additional DHCP server named Server2 that runs Windows Server 2012 R2.
You need to provide high availability for Scope1.
The solution must minimize administrative effort.
What should you do?
A.
Install and configure Network Load Balancing (NLB) on Server1 and Server2.
B.
Create a scope on Server2.
C.
Configure DHCP failover on Server1.
D.
Install and configure Failover Clustering on Server1 and Server2.
Explanation:
http://blogs.technet.com/b/canitpro/archive/2013/07/10/step-by-step-dhcp-high-availability-withwindowsserver-2012-r2.aspx
http://technet.microsoft.com/en-us/library/hh831385.aspx
Configure DHCP failover on the server that created the scope.
In this case Server1 created Scope1 therefore DHCP Failover should be configured on Server1
Should be B.
Jon says:
November 30, 2014 at 7:33 pm
Since the scope is DHCPv6, why wouldn’t the answer be “B”?
From http://technet.microsoft.com/en-us/library/dn338983.aspx
“DHCP failover supports DHCPv4 scopes only. DHCPv6 scopes cannot be failover-enabled.”
Reply
Netrider says:
December 3, 2014 at 9:55 am
I agree with Jon,
B is the correct answer.
DHCP failover is not supported for Internet Protocol version 6 (IPv6) scopes. Network adapters using IPv6 typically determine their own IPv6 address using stateless IP auto-configuration. In this mode, the DHCP server delivers only the DHCP option configuration, and the server does not maintain any lease state information. A high availability deployment for stateless DHCPv6 is possible by simply setting up two servers with identical option configuration. Even in a stateful DHCPv6 deployment, the scopes do not run under high address utilization, which makes split scope a viable solution for high availability.
Reply
Andy says:
December 9, 2014 at 11:25 pm
The answer is B. Good research Jon!!
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answer is B
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DHCP failover specifications
The following specifications apply to DHCP failover:
You cannot configure DHCP failover on a DHCP scope to include more than two DHCP servers.
DHCP failover supports DHCPv4 scopes only. DHCPv6 scopes cannot be failover-enabled.
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Fail-over dosnt support V6 So the answer should be B
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