A virtual local area network (VLAN) creates a separate ________ so that broadcasts can be contained to the ports assigned to that VLAN.

### Why this is right A VLAN groups selected switch ports into their own broadcast domain. A broadcast frame, such as an ARP request, is contained to ports in that VLAN instead of being sent to every port on the switch. ### The concept A broadcast domain is the set of devices and switch ports that receive a particular Layer 2 broadcast. By default, switch ports can share one broadcast domain. Creating VLANs divides the switch into multiple logical broadcast domains, even when the groups use the same physical switch. Administrators give each VLAN a name and a unique number, then assign ports to the correct VLAN. Hosts in different VLANs do not receive each other's Layer 2 broadcasts. Correct port assignment matters because a port placed in the wrong VLAN puts its connected device in the wrong broadcast group. ### Terms - **VLAN**: Virtual Local Area Network. A logical grouping of switch ports that forms a separate broadcast domain. - **Broadcast domain**: The set of devices and ports that receive a Layer 2 broadcast. - **Switch**: A device that connects local network devices and forwards frames. - **Port**: A switch connection assigned to a device or network link. - **ARP**: Address Resolution Protocol. A protocol that uses a local broadcast request to find an IPv4-to-MAC address mapping. ### Remember A VLAN's key effect in this material is to contain broadcasts to its assigned ports.