QuestionQ207
Infrastructure and DesignTo deliver high-quality voice and use the complete voice feature set, which two capabilities must access-layer switches support?
Choose two
- A Use multiple egress queues to provide priority queuing of RTP voice packet streams and the ability to classify or reclassify traffic and establish a network trust boundary.
- B Deploy RSVP to improve VoIP QoS only where it can have a positive impact on quality and functionality where there is limited bandwidth and frequent network congestion.
- C Map audio and video streams of video calls (AF41 and AF42) to a class-based queue with weighted random early detection.
- D Use 802.1Q trunking and 802.1p for proper treatment of Layer 2 CoS packet marking on ports with phones connected.
- E Implement IP RTP header compression on the serial interface to reduce the bandwidth required per voice call on point-to-point links.
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