What does VLAN stand for?

VLAN stands for Virtual Local Area Network. A VLAN is a logically segmented network within a physical network that allows for the grouping of devices, regardless of their physical location. This technology enhances network efficiency and security by enabling isolated broadcast domains. By segmenting traffic within a single physical network infrastructure, organizations can improve network performance and manageability.

Each VLAN is identified by a unique identifier known as a VLAN ID, typically ranging from 1 to 4095. This allows switches to segregate traffic appropriately and ensures that devices on different VLANs cannot communicate directly without an intervening device, such as a router, which provides inter-VLAN routing services. This capability is critical in enterprise networks where different departments or functions need to be separated for security policy and traffic management.

The other options reflect misunderstandings of the terminology. While they contain elements of the correct term, they do not accurately capture the standard definition used in networking contexts. Understanding the proper acronym and its implications in network design and security is essential for effective network management.