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300-415 · Question #143

How does the Cisco SD-WAN architecture differ from traditional WAN technologies? (Choose three.)

The correct answer is A. Single pane of glass B. Increased scale with centralized control plane E. Distributed architecture. Cisco SD-WAN architecture provides a single point of management and scales effectively through a centralized control plane, while maintaining a distributed data plane for resilience and performance.

Architecture

Question

How does the Cisco SD-WAN architecture differ from traditional WAN technologies? (Choose three.)

Options

  • ASingle pane of glass
  • BIncreased scale with centralized control plane
  • CReduced uptime in branch locations
  • DTopology dependence
  • EDistributed architecture

How the community answered

(25 responses)
  • A
    88% (22)
  • C
    8% (2)
  • D
    4% (1)

Why each option

Cisco SD-WAN architecture provides a single point of management and scales effectively through a centralized control plane, while maintaining a distributed data plane for resilience and performance.

ASingle pane of glassCorrect

Cisco SD-WAN centralizes management and monitoring through vManage, offering a 'single pane of glass' for the entire overlay network, which simplifies operations compared to managing individual devices in traditional WANs.

BIncreased scale with centralized control planeCorrect

The architecture achieves increased scale by centralizing the control plane (vSmart controllers) to manage routing and policies for a large number of distributed WAN Edge devices.

CReduced uptime in branch locations

Cisco SD-WAN is designed to increase, not reduce, uptime and resilience in branch locations by leveraging multiple transport links and intelligent path selection.

DTopology dependence

Cisco SD-WAN is topology-independent, abstracting the underlying physical network and allowing flexible deployment over various transport types without strict dependence on a specific topology.

EDistributed architectureCorrect

Despite a centralized control plane, the data plane remains distributed across WAN Edge routers, ensuring local traffic processing, resilience, and optimized data forwarding.

Concept tested: Cisco SD-WAN architecture differences from traditional WAN

Source: https://www.cisco.com/c/en/us/solutions/enterprise-networks/sd-wan/index.html

Topics

#SD-WAN Architecture#Centralized Control#Distributed Data Plane#Unified Management

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