300-415 Question 276
Select 3A global organization is utilizing Cisco SD-WAN to optimize application performance across its branches. The IT team wants to ensure that critical applications such as voice and video conferencing maintain high performance during periods of network congestion. They are considering implementing Application Quality of Experience (App-QoE). Which features of App-QoE can help achieve this goal?
- A
TCP Optimization to reduce latency and improve throughput for critical applications
- B
Forward Error Correction (FEC) to recover lost packets in real-time
- C
Application-Aware Routing to dynamically select the best-performing path
- D
Rate Limiting to restrict bandwidth usage for non-critical applications
- E
WAN Edge Load Balancing to distribute traffic evenly across available links
Show answer and explanation
Correct answers: A, B, C
Explanation
Application Quality of Experience (App-QoE) in Cisco SD-WAN leverages features like TCP Optimization, Forward Error Correction (FEC), and Application-Aware Routing to enhance application performance and ensure high-quality experiences for critical applications during network congestion. These features work in tandem to optimize traffic, recover lost packets, and dynamically select the best-performing paths, ensuring reliable and efficient application delivery.
- A. Correct.
TCP Optimization is a key App-QoE feature that reduces latency, improves throughput, and enhances the performance of applications like voice and video.
- B. Correct.
Forward Error Correction (FEC) is part of App-QoE, helping recover lost packets in real-time, which is critical for maintaining high-quality streaming for voice and video applications.
- C. Correct.
Application-Aware Routing is a feature that enables SD-WAN to dynamically choose the optimal path for application traffic based on real-time performance metrics, ensuring high-quality experiences.
- D. Incorrect.
Rate Limiting is not directly part of App-QoE but rather a traffic management technique to control bandwidth usage, which doesn't directly improve application quality.
- E. Incorrect.
WAN Edge Load Balancing is a general SD-WAN feature that distributes traffic but does not specifically address application quality improvements provided by App-QoE.