[A17] You have a server named Lync1 that has Lync Server 2013 Standard Edition deployed. Lync1 has Web Conferencing enabled. All client computers have Microsoft Lync 2013 deployed. The network supports Differentiated Services (DiffServ). The company plans to implement Quality of Service (QoS) for all Lync Server audio traffic. You need to identify which tasks must be performed to configure QoS. Which three tasks should you identify? (Each correct answer presents part of the solution. Choose three.)
A. Configure Lync 2013 to use a specific port range for audio.
B. Configure a QoS policy to use a specific port range for audio.
C. Create a voice policy and a location policy.
D. Set the Differentiated Services Code Point (DSCP) values used for audio as a priority.
E. Configure Call Admission Control (CAC) for all subnets that contain Lync 2013 clients.
