920-803 Technology Standards and Protocol for IP Telephony Solutions Practice Exams

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920-803 Technology Standards and Protocol for IP Telephony Solutions

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Demo Question 2.

A customer named EliteCertify.com is running voice and data traffic between two sites over a WAN. They are planning to connectVoIPgateways in IP-enabled Private Branch Exchanges (PBXs) to existing Ethernet Layer 3 switches at each site. In this situation, which QoS method should achieve the best voice quality using QoS prioritization?

A. Port Prioritization
B. IP Address Prioritization
C. Traffic Separation using VLANs
D. Differentiated Services (DiffServ)

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Answer: D

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