350-801 CLCOR: Implementing and Operating Cisco Collaboration Core TechnologiesDemo

Question

What are two QoS requirements that apply to VoIP traffic?

Choose two

A Loss must be no more than 1 percent.
B Voice traffic must be marked to DSCP AF41.
C One-way latency must be no more than 200 ms.
D Voice traffic must be marked to DSCP EF.
E Average one-way jitter is greater than 50 ms.

Explanation

VoIP bearer traffic should be marked with DSCP Expedited Forwarding (EF) so it receives priority treatment, and packet loss must be limited to no more than 1% to preserve voice quality. Cisco guidance targets one-way latency at 150 ms and jitter below 30 ms.

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350-801 CLCOR: Implementing and Operating Cisco Collaboration Core TechnologiesDemo

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