Which switching feature is used to create separate broadcast domains?

Virtual Local Area Networks (VLANs) are used to segment a single physical network into multiple logical networks, with each VLAN acting as a separate broadcast domain. This means that broadcast traffic within one VLAN is not forwarded to other VLANs, improving network performance and security. STP (Spanning Tree Protocol) prevents switching loops by blocking redundant paths, but it does not create separate broadcast domains. VTP (VLAN Trunking Protocol) is used to manage VLAN configurations across multiple switches, not to create the domains themselves. CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is an access method for shared media networks, primarily used in older Ethernet implementations, and is unrelated to broadcast domain separation.