A company has a Unified Communications and Collaboration (UCC) solution.
Users run softphones on their desktops and laptops.
The UCC solution is configured to use a certain range of Layer 4 ports for VoIP traffic. The user devices connect to AOS-Switches.
A network administrator needs to configure the AOS-Switches to prioritize only the VoIP traffic. Where can the administrator configure a DSCP value to meet this goal?
A. in a global UDP port-based QoS policy
B. on the interfaces through which the VoIP traffic is forwarded
C. on the interfaces that connect to the user devices
D. on the VLAN to which the user devices are assigned
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D