300-415 · Question #174
300-415 Question #174: Real Exam Question with Answer & Explanation
The correct answer is C: centralized data policy. A centralized data policy is the correct type of policy to ensure that voice packets are directed over links meeting specific performance criteria like a 50 msec delay threshold. These policies are applied to traffic flows across the entire SD-WAN fabric to enforce application-aw
Question
Options
- Alocalized data policy
- Blocalized control policy
- Ccentralized data policy
- Dcentralized control policy
Explanation
A centralized data policy is the correct type of policy to ensure that voice packets are directed over links meeting specific performance criteria like a 50 msec delay threshold. These policies are applied to traffic flows across the entire SD-WAN fabric to enforce application-aware routing.
Common mistakes.
- A. Localized data policies are applied to specific WAN Edge devices and influence traffic exiting interfaces on that device, but they do not provide end-to-end path selection based on network-wide link quality.
- B. Localized control policies are applied to specific WAN Edge devices to influence routing information exchanged between local interfaces or to filter routes, not to control data plane forwarding based on link performance.
- D. Centralized control policies are used to influence routing information (prefixes and TLOCs) within the overlay network, affecting the control plane's understanding of topology and reachability, not directly the data plane's forwarding path selection based on real-time link performance for specific traffic.
Concept tested. Cisco SD-WAN centralized data policy for SLA
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