Virtual Local Area Networks (VLANs)

Correct Answer: MAC-Based VLAN Assignment

MAC-Based VLAN Assignment automatically assigns devices to specific VLANs based on their MAC addresses. This approach provides a flexible method to separate devices into different VLANs without manual intervention.

Correct Answer: Implement VLANs

The best solution to isolate broadcast traffic in a large network is to implement VLANs (Virtual Local Area Networks). VLANs logically segment a physical network into separate broadcast domains, which can prevent unnecessary transmission of broadcast traffic to unrelated systems. This will limit query broadcast traffic within the assigned VLAN, thus optimizing network performance. Disabling Spanning Tree Protocol (STP) is not a good solution because STP is designed to prevent bridge loops, which are harmful to network performance. Reducing the number of switches is also not the best solution because it might still not block broadcast traffic effectively and might disrupt normal network operations. Configuring static IP addressing is unrelated to the isolation of broadcast traffic in a network. It only removes the need for a DHCP server to assign IP addresses but does not prevent the spread of broadcast traffic.

Correct Answer: Create VLANs for each group

Creating separate VLANs for each group allows traffic separation while sharing the same physical infrastructure. Using different layer 2 switches for each group would be expensive and not practical. ACLs on a single VLAN won't provide ideal traffic separation. Assigning different static IPs for each group won't provide network segmentation. Implementing separate subnets requires different physical infrastructures. Network segmentation without VLANs doesn't provide efficient traffic separation.