300-320 · Question #303
300-320 Question #303: Real Exam Question with Answer & Explanation
The correct answer is A: performance routing. Performance Routing (PfR), also known as Optimized Edge Routing (OER) in older Cisco documentation, dynamically monitors WAN transport characteristics - including delay, jitter, packet loss, and link load - and automatically shifts traffic to the best-performing available path. I
Question
Options
- Aperformance routing
- Bstatic routing
- Con demand routing
- Dpolicy based routing
Explanation
Performance Routing (PfR), also known as Optimized Edge Routing (OER) in older Cisco documentation, dynamically monitors WAN transport characteristics - including delay, jitter, packet loss, and link load - and automatically shifts traffic to the best-performing available path. It provides intelligent, policy-driven path selection beyond what static or standard dynamic routing can achieve. Static routing cannot react dynamically to congestion. On-Demand Routing (ODR) is a minimal routing approach for hub-and-spoke stub networks. Policy-Based Routing (PBR) uses static administrator-defined rules and does not adapt to real-time network conditions.
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