Which layer of the OSI model includes VLANs?

A.
Physical

B.
Data Link

C.
Network

D.
Transport

Explanation:
Understanding Layer 2 Switching

Layer 2 switching can also allow for a virtual LAN (VLAN) to be implemented. A VLAN is implemented to segment the network, reduce collisions,
organize the network, boost performance, and—hopefully—increase security.