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N10-005 · Question #843

Which of the following allows for groups of ports on the same switch to operate as a part of different segmented networks?

The correct answer is C. VLAN. VLANs (Virtual Local Area Networks) logically segment switch ports into separate broadcast domains without requiring physically separate switches.

Networking concepts

Question

Which of the following allows for groups of ports on the same switch to operate as a part of different segmented networks?

Options

  • ARIP
  • BSTP
  • CVLAN
  • DMTU

How the community answered

(22 responses)
  • A
    5% (1)
  • C
    91% (20)
  • D
    5% (1)

Why each option

VLANs (Virtual Local Area Networks) logically segment switch ports into separate broadcast domains without requiring physically separate switches.

ARIP

RIP (Routing Information Protocol) is a Layer 3 distance-vector routing protocol used to exchange routes between routers, not a mechanism for segmenting switch ports.

BSTP

STP (Spanning Tree Protocol) prevents Layer 2 loops in redundant switch topologies but does not segment ports into different networks.

CVLANCorrect

A VLAN is a Layer 2 feature configured on managed switches that assigns specific ports to distinct logical networks. Devices on different VLANs cannot communicate directly at Layer 2 even though they share the same physical switch, effectively creating separate segmented networks and controlling broadcast traffic between groups.

DMTU

MTU (Maximum Transmission Unit) defines the largest packet size a network interface can transmit and has nothing to do with port segmentation or network isolation.

Concept tested: VLAN port segmentation on managed switches

Source: https://www.cisco.com/c/en/us/support/docs/lan-switching/vlan/10023-3.html

Topics

#VLAN#network segmentation#switch configuration#logical networks

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