300-435 Question #60: Real Exam Question with Answer & Explanation

Question

Which two features are characteristics of software-defined networks when compared to traditional infrastructure? (Choose two.)

Options

• Aconfigured box-by-box
• Bchanged manually
• Cuse overlay networks
• Ddesigned to change
• Erequire software development experience to manage

Explanation

Software-defined networks (SDN) leverage overlay networks for virtualization and are architected for dynamic change and automation, unlike traditional infrastructure.

Common mistakes.

• A. Configuring devices "box-by-box" is a hallmark of traditional network infrastructure where each device is individually accessed and managed, contrasting with the centralized, programmatic control of SDN.
• B. Manual changes are characteristic of traditional networks, whereas SDN aims to automate network operations and configuration through centralized controllers and APIs, minimizing manual intervention.
• E. While advanced SDN deployments can benefit from scripting and API interaction, managing an SDN through its controller GUI or automation tools does not inherently require extensive software development experience for day-to-day operations, making it not a universal characteristic compared to traditional infrastructure.

Concept tested. Characteristics of Software-Defined Networks (SDN)

Reference. https://www.cisco.com/c/en/us/solutions/software-defined-networking/what-is-sdn.html

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