Switches use 802.1Q tags to identify VLANs, allowing them to properly forward frames to the correct VLAN.

A VLAN is a logical grouping of devices that allows them to communicate as if they are on the same physical network, regardless of their actual physical location.

The default VLAN ID for untagged traffic on most switches is VLAN 1.

Most switches have VLAN 1 as the default VLAN, which is used for management and control traffic.

A VLAN Access Control List (VACL) is used to filter traffic between VLANs, providing a way to enforce security policies.

The 802.1Q standard allows for a maximum of 4096 VLANs to be created on a switch.

The 802.1Q standard allows for the creation of up to 4096 VLANs, as it uses a 12-bit VLAN ID.

VLANs reduce broadcast traffic by segmenting a network into smaller, isolated groups, which improves overall network performance.

Inter-VLAN routing allows devices on different VLANs to communicate with each other, typically using a router or a Layer 3 switch.

Tagging frames in a VLAN is used to identify the VLAN membership of the frame, allowing switches to properly route the traffic.

A router is primarily responsible for routing traffic between VLANs, enabling communication between different network segments.

A router is typically used to perform Inter-VLAN routing, enabling communication between different VLANs.

IEEE 802.1Q defines the VLAN tagging protocol, which allows for the identification of VLANs in Ethernet frames.

A trunk port carries traffic for multiple VLANs, allowing switches to communicate VLAN information across the network.

VLANs can span multiple switches, allowing devices on different physical switches to communicate as if they are on the same local network.

Control VLAN is not a recognized type of VLAN; the common types include Data VLAN, Voice VLAN, and Management VLAN.

VLAN Trunking Protocol (VTP) is used to manage VLAN configurations across multiple switches in a network.