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[F4] You need to recommend changes to the Lync Server 2013 infrastructure to support the planned changes for federation.
Which two changes should you include in the recommendation? (Each correct answer presents part of the solution. Choose two.)
A. In the public DNS zone, create a new alias (CNAME) record named sipfederation.contoso.com
B. In the public DNS zone, create a new service location (SRV) record named _sipfederationtls._tcp.contoso.com
C. Deploy a hardware load balancer to the perimeter network
D. Deploy a Director to the perimeter network
Correct Answer: BC
Explanation/Reference:
Explanation:
* From scenario:
Problem Statements
Users from other companies report that they fail to communicate with the users at Contoso by using federation.
That’s because there is no DNS record for sipinternaltls in the external contoso.com DNS space.
SRV _sipfederationtls_tcp.contoso.com 5061
The federated partner is running OCS R2, which doesn’t support DNS LB. And the requirements state that they must be able to communicate if an edge server fails. Only way around that is HLB. Also, question F7 references an HLB.
