Ethernet VLANs

What defines the boundary of a broadcast domain in a VLAN environment?

• IP address range

• VLAN ID

• Subnet mask

• Default gateway

What happens when a broadcast frame enters a port on a switch configured with two VLANs?

• It is forwarded to all ports

• It is dropped immediately

• It is forwarded to all ports in the same VLAN

• It is sent to the router for VLAN routing

What is the main advantage of using VLANs over using multiple physical switches?

• Lower power consumption

• Greater bandwidth

• Cost savings and flexibility

• Simplified routing

Which of the following is NOT a benefit of VLANs?

• Improved host performance

• Reduced workload for STP

• Reduced broadcast traffic

• Increased frame forwarding time

How does a switch forward a broadcast frame from VLAN 10 to another switch?

• Sends untagged frame

• Adds VLAN ID to Ethernet header

• Converts to multicast

• Encapsulates in IP

What is used to support multiple VLANs over a single link between switches?

• Port mirroring

• Trunking

• EtherChannel

• Routing

What does a trunk link add to Ethernet frames to differentiate VLANs?

• MAC address

• Subnet ID

• VLAN header

• IP address

What is the role of VLAN ID in trunking?

• Filters duplicate frames

• Ensures loop-free paths

• Identifies VLAN of the frame

• Encrypts the frame

Which of the following describes VLAN tagging?

• Changing the MAC address

• Appending the frame with a VLAN ID

• Encrypting the payload

• Fragmenting the packet

If a switch port is not assigned to any VLAN, what is its default behavior?

• Joins VLAN 1

• Becomes inactive

• Broadcasts to all VLANs

• Sends to router