CompTIA Network+ (N10-007) — Question 201

A technician is installing six PCs and six VoIP telephones on a small office LAN. The VoIP telephones require QoS to be configured for proper operation. The customer router does not have QoS capability. Which of the following network devices should the technician purchase and install at this office?

Answer options

• A. Managed PoE switch
• B. Load balancer
• C. Layer 3 switch
• D. Unmanaged PoE switch

Correct answer: A

Explanation

The correct choice is A, a Managed PoE switch, as it can provide QoS features necessary for VoIP traffic management. Options B (Load balancer) and C (Layer 3 switch) do not specifically address the QoS requirement for VoIP, while D (Unmanaged PoE switch) lacks the necessary configuration capabilities for QoS.