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N10-005 · Question #604

Which of the following is a purpose of a VLAN?

The correct answer is B. Segments broadcast traffic. A VLAN (Virtual Local Area Network) logically segments a physical network into separate broadcast domains, containing broadcast traffic within each VLAN.

Network implementation

Question

Which of the following is a purpose of a VLAN?

Options

  • ADecreases bandwidth on a network
  • BSegments broadcast traffic
  • CIncreases port speed
  • DAllows another connection to the router

How the community answered

(30 responses)
  • A
    3% (1)
  • B
    93% (28)
  • D
    3% (1)

Why each option

A VLAN (Virtual Local Area Network) logically segments a physical network into separate broadcast domains, containing broadcast traffic within each VLAN.

ADecreases bandwidth on a network

VLANs do not decrease total available bandwidth; they can improve effective bandwidth utilization by reducing broadcast overhead and isolating traffic.

BSegments broadcast trafficCorrect

VLANs divide a single physical switch into multiple logical broadcast domains. Broadcast frames sent by a device are contained within its VLAN and not forwarded to other VLANs, reducing unnecessary broadcast traffic and improving overall network performance and security.

CIncreases port speed

VLANs are a logical segmentation technology and have no effect on the physical port speed of switch interfaces.

DAllows another connection to the router

VLANs do not create additional connections to a router; inter-VLAN routing requires either a router-on-a-stick configuration or a Layer 3 switch, which is a separate design decision.

Concept tested: VLAN broadcast domain segmentation

Source: https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-overview

Topics

#VLAN#broadcast domain#network segmentation#switching

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