Which two options are two benefits of a Layer 2 looped model? (Choose two.)

The correct answer is A. extends VLANs between switches that are connected to a common aggregation module C. provides quick convergence with Rapid Spanning Tree Protocol. In a Layer 2 looped model, redundant uplinks create physical loops that are managed by Spanning Tree Protocol. This design Extends VLANs between switches connected to a common aggregation module (A), enabling Layer 2 adjacency across the access layer - critical for workload…

Advanced Data Center Networks

Question

Options

Aextends VLANs between switches that are connected to a common aggregation module
Bprevents uplink ports from entering the spanning-tree blocking state
Cprovides quick convergence with Rapid Spanning Tree Protocol
Dincreases performance to end hosts using directly connected, bonded Layer 2 links

How the community answered

(21 responses)

A
95% (20)
B
5% (1)

Explanation

In a Layer 2 looped model, redundant uplinks create physical loops that are managed by Spanning Tree Protocol. This design Extends VLANs between switches connected to a common aggregation module (A), enabling Layer 2 adjacency across the access layer - critical for workload mobility and clustering. It also Benefits from Rapid Spanning Tree Protocol (RSTP) for quick convergence (C) when a link fails, since RSTP recovers much faster than legacy STP. Option B is incorrect because the looped model relies on STP blocking some uplinks - preventing blocking states is a feature of loop-free designs using port channels. Option D describes bonded Layer 2 links which are more associated with loop-free or active-active uplink designs.

Topics

#Layer 2 looped model#VLAN extension#Rapid Spanning Tree#spanning tree blocking

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