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Asmall businessis deploying new phones, and some of the phones havefull HD videoconferencing features. TheChief Information Officer (CIO)is concerned that the network might not be able to handle the traffic if it reaches a certain threshold. Which of the following can the network engineer configure to help ease these concerns?
Correct Answer: D
Comprehensive and Detailed Explanation: Full duplex modeallows devices tosend and receive data simultaneously, improving network performance andreducing congestion, which iscritical for VoIP and video conferencing. Breakdown of Options: * A. A VLAN with 100Mbps speed limits- VLANssegment trafficbutlimiting speedsto100Mbpswould worsenvideo performance. * B. An IP helper to direct VoIP traffic-IP helperis used forDHCP relay,notfor VoIP optimization. * C. A smaller subnet mask- A smaller subnet reducesIP address availabilitybut doesnot improve network performance. * D. Full duplex on all user ports-Correct answer.Full duplex eliminates collisions, allowingbetter VoIP and video performance.