VLANs and Trunking

What defines a Local Area Network (LAN)?

• A group of devices connected by wireless technology.

• A group of devices that are in the same broadcast domain.

• A network that spans across multiple geographical locations.

• A collection of devices managed by a single router.

What is the main advantage of using Virtual Local Area Networks (VLANs) compared to traditional LANs with multiple physical switches?

• VLANs increase the physical security of the network.

• VLANs allow devices to communicate across different broadcast domains without a router.

• VLANs enable logical separation of devices on a single physical switch, improving efficiency and management.

• VLANs provide higher bandwidth for all connected devices.

What is the primary function of VLAN trunking in a network with multiple switches?

• To provide redundant power to network switches.

• To allow different VLANs to communicate with each other on the same switch.

• To efficiently carry traffic for multiple VLANs over a single physical link between switches.

• To encrypt all data transmitted between network devices.

How does the 802.1Q trunking standard identify which Virtual Local Area Network (VLAN) a specific Ethernet frame belongs to?

• By analyzing the source and destination MAC addresses.

• By adding a unique VLAN header (tag) to the Ethernet frame.

• By assigning a dedicated physical cable for each VLAN.

• By using a separate IP address range for each VLAN.

What is a characteristic of a native VLAN?

• A VLAN assigned to an interface by default.

• It always adds an 802.1Q header to its traffic.

• It can traverse a trunk without an 802.1Q header.

• It is primarily used for end-user devices that require tagging.

What functionality does a Layer 3 switch combine?

• Only Layer 2 switching capabilities.

• Layer 2 switching and Layer 1 physical connectivity.

• Layer 2 switching and Layer 3 routing.

• Only Layer 3 routing capabilities.

What are Switched Virtual Interfaces (SVIs) primarily used for in a Layer 3 switch?

• To connect physical devices to the switch.

• To enable Layer 2 switching between different ports.

• To connect the internal router to VLANs for inter-VLAN routing.

• To provide Power over Ethernet (PoE) to connected devices.

Why is it beneficial to separate voice and data traffic into different VLANs on a network?

• To increase the overall network bandwidth.

• Voice traffic is highly sensitive to congestion, while data traffic can cause congestion.

• Data traffic requires more security than voice traffic.

• To simplify the physical cabling infrastructure.