CompTIA Network+ (N10-009) — Question 57

A small business is deploying new phones, and some of the phones have full HD videoconferencing features. The Chief Information Officer is concerned that the network might not be able to handle the traffic if the traffic reaches a certain threshold. Which of the following can the network engineer configure to help ease these concerns?

Answer options

• A. A VLAN with 100Mbps speed limits
• B. An IP helper to direct VoIP traffic
• C. A smaller subnet mask
• D. Full duplex on all user ports

Correct answer: A

Explanation

Configuring a VLAN with a 100Mbps speed limit helps manage bandwidth and prevents the network from becoming overloaded during peak usage. The other options do not directly address the concern of traffic management; an IP helper is for DHCP, a smaller subnet mask changes address allocation but does not control traffic, and full duplex improves communication but does not limit bandwidth.