Reduce the background traffic and allows the network to grow while still providing different security protections to different parts of the network. Which concept fits this description?

• A. Virtual Local Area Network (VLAN)
• B. Management VLAN
• C. Out of band (OOB)
• D. Audit Log

Answer: (A)

Grouping devices into separate broadcast domains with a virtual Local Area Network is about dividing a single physical network into logical segments. This containment means broadcast, multicast, and ARP requests stay within each segment, so your normal traffic doesn’t flood the entire network as it grows. That helps reduce background traffic and makes the network scale more cleanly, because you can add new VLANs for new departments or functions without adding more physical switches. At the same time, different security protections can be applied to each segment, since traffic between VLANs can be controlled with inter-VLAN routing and access controls, effectively enforcing boundaries between parts of the network.

A management VLAN is a specific use of VLANs to isolate management traffic, but the broader concept described is about overall segmentation and scalable security across the network. Out of band management refers to a separate path used for management traffic and doesn’t describe general traffic reduction and segmentation. An audit log is a record of events, not a method for segmenting networks or enforcing security between segments.