300-320 Question #379: Real Exam Question with Answer & Explanation

The correct answer is D: Performance routing. Performance Routing (PfR), also known as Optimized Edge Routing (OER) in older Cisco terminology, enables routing decisions based on real-time network performance metrics such as latency, jitter, packet loss, Mean Opinion Score (MOS) for voice, and available bandwidth. This allow

Question

The WAN link between HQ and Branch. What Technology that to be routed in a more informed way?

Options

APolicy base routing
BOn demand routing
CStatic routing
DPerformance routing

Explanation

Performance Routing (PfR), also known as Optimized Edge Routing (OER) in older Cisco terminology, enables routing decisions based on real-time network performance metrics such as latency, jitter, packet loss, Mean Opinion Score (MOS) for voice, and available bandwidth. This allows traffic to be directed over the best-performing WAN path rather than simply the shortest path, making it routing 'in a more informed way.' Policy-Based Routing (A) routes traffic based on administrator-defined policies (ACLs, packet attributes) but does not dynamically respond to real-time performance conditions. On-Demand Routing (B) creates routes dynamically only when traffic requires it, addressing scalability rather than performance optimization. Static routing (C) is manually configured and completely unaware of network conditions.

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