Networking Quiz: VLANs and Trunking Configurations

Dividing a large network into smaller, independent broadcast domains within a Layer 2 switch. This improves performance and security by isolating traffic.

A type of network connection that carries traffic from multiple VLANs over a single physical link. It allows inter-VLAN communication.

The process of routing traffic between different VLANs, enabling communication across virtual network segments.

A device that typically handles traffic within a single VLAN, providing network access for devices on that segment.

A device designed for routing traffic between different networks. Used in inter-VLAN routing to manage traffic flows between VLANs.

VLANs allow administrators to group devices based on factors such as function or team, without regard for physical location. This enables better control and security.

VLANs can be customized to manage different network traffic types, improving security and resource allocation.

VLANs allow for flexible network design and scalability. They support growth and changes in network requirements.

A VLAN where all switch ports are assigned by default before any configuration changes. It is also the default Native and Management VLAN.

A VLAN designated for user-generated traffic, mainly for data transmission.

A VLAN used to manage the switch's configuration and access management features.

A VLAN used for untagged traffic, meaning frames belonging to this VLAN are not tagged with VLAN ID for transmission.

The ability of VLANs to limit the reach of broadcast frames. Each VLAN becomes its own separate broadcast domain, preventing broadcasts from spreading across the entire network.

A VLAN used to manage and prioritize voice traffic by associating it with a dedicated VLAN. This allows for controlled delivery of voice data, ensuring better voice quality.

The interface command is used to configure a specific interface on a device, like a switch port.

The switchport mode access command configures the port to operate in access mode, connecting a single device to a network segment.

The switchport access vlan command assigns the specified VLAN to a specific port in access mode.

The no vlan vlan-id command is used to delete a VLAN configuration, removing it from the switch's VLAN database.

The show vlan brief command displays a summary of all VLANs configured on the switch, including their names, status, and associated ports.

The show interfaces command displays detailed information about a specific interface on the device, including its configuration and status.

The show switchport command displays the administrative and operational status of a switching port, including port blocking and protection settings.

The delete flash:vlan.dat command is used to delete the entire VLAN configuration file, effectively resetting VLAN configurations to factory defaults.

A method of routing traffic between VLANs by using a single physical interface on the router.

The traditional way of routing traffic between VLANs using multiple dedicated physical interfaces on the router. Each interface connects to a different VLAN, allowing for separation and routing.

The router's physical interface configured to carry traffic from multiple VLANs using a trunk port. It manages traffic from various VLANs simultaneously.

When a router's interface is configured as a trunk port, it can understand VLAN tags and intelligently handle traffic for different VLANs.

Virtual interfaces created on a router's physical interface, each representing a VLAN. They receive and forward traffic for their assigned VLANs.

Router interfaces configured as subinterfaces are given an IP address from the VLAN they represent. This allows for routing between VLANs from the router's perspective.

A router uses subinterfaces to route traffic between different VLANs on the same trunk port. Imagine packets traversing the same path but within different rooms.

A network connection that transports data from multiple VLANs over a single physical link, enabling communication between different VLAN segments.

A configuration setting on a trunk port, defining the default VLAN for untagged traffic.

A misconfiguration where the Native VLANs on two connected trunk ports do not match, leading to potential security risks and unexpected behavior.

An error where the trunk modes on two connected ports don't match, resulting in communication issues.

A configuration issue where the list of allowed VLANs on a trunk port doesn't comply with the current network setup, preventing some traffic from passing.

The process of routing network traffic between different VLANs, allowing communication across virtual network segments.

Devices that act as gateways between VLANs, enabling communication between different virtual networks.

A type of switch that can handle both Layer 2 switching and Layer 3 routing, allowing it to perform inter-VLAN routing.

Configuring a switch port to act as a trunk, enabling it to pass traffic from multiple VLANs.

A special type of interface on a router, used specifically for routing traffic between VLANs.

To configure a subinterface for inter-VLAN routing, you set its encapsulation type to 802.1Q.

This command configures a switch port as a trunk port, enabling it to carry traffic from multiple VLANs.

The process of testing network connectivity between devices on different VLANs to ensure they can communicate properly.

To verify inter-VLAN routing, ping between devices on different VLANs. The ping should be successful if the routing is configured correctly.