B
A managed switch is a network device that can be configured to create VLANs (Virtual Local Area Networks), which are logical segments of a network that isolate traffic based on criteria such as function, security, or quality of service. A VLAN can be used to isolate voice traffic on the network, which can improve the performance and security of voice over IP (VoIP) applications. A network tap, a hub, and a DSL filter are not capable of creating VLANs.
Reference: [CompTIA A+ Core 1 (220-1101) Certification Study Guide], page 32.
The correct answer is B. Managed switch.
A managed switch is a network device that can be configured to prioritize specific types of traffic, such as voice traffic. This can be achieved through features like Quality of Service (QoS) and VLANs (Virtual Local Area Networks).
By prioritizing voice traffic, the switch can ensure that it has the necessary bandwidth and low latency to deliver clear and reliable voice communication.
GG
All Omnnitron managed Ethernet switches, and managed PoE switches, support VLAN capability to isolate VoIP traffic from other data traffic inside the network
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