(ISC)2 Certified in Cybersecurity Practice Exam

A VLAN is considered which type of network segmenting method?

1. Secret

2. Physical

3. Regulated

4. Logical

The correct answer is: Logical

A VLAN, or Virtual Local Area Network, is categorized as a logical network segmenting method. This classification arises from the way VLANs operate, as they allow network administrators to create distinct broadcast domains that are isolated from each other on the same physical infrastructure. With VLANs, devices can be grouped by function, project team, or application usage, regardless of their physical location within the network. This is facilitated through configuration on the network switches, rather than relying on a separate physical layout, which is what sets logical segmentation apart from physical segmentation. In logical segmentation, devices can communicate with one another as if they were on the same local network, irrespective of their actual physical connection, hence emphasizing the flexibility and efficiency of VLANs in network design. This ability to segment networks logically provides enhanced security, as well as improved traffic management, by controlling broadcast traffic and reducing congestion across the network. The other types of network segmenting methods, such as physical segmentation, involve separating devices based on physical connections or cabling, which does not apply to VLANs. Options like "secret" and "regulated" do not represent recognized methods of network segmentation within the context of networking or cybersecurity. This further underscores why VLANs are classified under logical segmentation, emphasizing their operational