What is the relationship between VLANs and broadcast domains?

What is the relationship between VLANs and broadcast domains?

• A. Each VLAN creates a separate broadcast domain
• B. VLANs do not affect broadcast domains
• C. Multiple VLANs share a single broadcast domain
• D. Broadcast domains are always larger than VLANs

Answer: (A)

Each VLAN creates a separate broadcast domain, which means that when a device sends a broadcast frame, only devices within the same VLAN will receive that frame. This isolation is fundamental to how VLAN technology operates in networks. In a traditional Ethernet network without VLANs, all devices in the same local network segment would receive broadcast traffic, potentially leading to inefficiency and congestion. By utilizing VLANs, network administrators can segment networks logically, effectively controlling and containing broadcast traffic within defined boundaries. This helps improve network performance and enhances security by isolating sensitive traffic from other parts of the network. The other options do not accurately reflect the relationship between VLANs and broadcast domains. VLANs do indeed affect broadcast domains by creating distinct segments; sharing a single broadcast domain contradicts the purpose of VLANs, and it is not true that broadcast domains are always larger than VLANs, as a VLAN can be the defining factor that sizes a broadcast domain. This makes it clear that each VLAN distinctly establishes its own broadcast domain.

Each VLAN creates a separate broadcast domain, which means that when a device sends a broadcast frame, only devices within the same VLAN will receive that frame. This isolation is fundamental to how VLAN technology operates in networks.

In a traditional Ethernet network without VLANs, all devices in the same local network segment would receive broadcast traffic, potentially leading to inefficiency and congestion. By utilizing VLANs, network administrators can segment networks logically, effectively controlling and containing broadcast traffic within defined boundaries. This helps improve network performance and enhances security by isolating sensitive traffic from other parts of the network.

The other options do not accurately reflect the relationship between VLANs and broadcast domains. VLANs do indeed affect broadcast domains by creating distinct segments; sharing a single broadcast domain contradicts the purpose of VLANs, and it is not true that broadcast domains are always larger than VLANs, as a VLAN can be the defining factor that sizes a broadcast domain. This makes it clear that each VLAN distinctly establishes its own broadcast domain.