An organization with multiple data centers in different regions wants to simplify administration and modify network rules from one control point. The lead architect recommends a solution that routes traffic outside of specific hardware devices, integrates forwarding decisions, and distributes security settings from a single controller. Which network approach best fulfills these goals?
Maintaining routing tables on cluster-aware hardware appliances
Applying VLAN trunking to each segment
Configuring customized Access Control Lists region by region
Shifting routing and security decisions to a central control mechanism
A centralized network model that separates control logic from hardware components defines Software-Defined Networking (SDN). SDN allows administrators to dynamically update routing and enforce consistent security policies across distributed environments using a single control interface. In contrast, traditional methods rely on device-specific configurations, limiting scalability and increasing administrative overhead.
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What is Software-Defined Networking (SDN)?
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How does SDN improve scalability compared to traditional networking?
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What are the key differences between SDN and VLAN trunking?