Cisco
300-415 · Question #247
300-415 Question #247: Real Exam Question with Answer & Explanation
The correct answer is A: queue 0. For egress QoS configuration on a Cisco WAN Edge router, voice traffic is typically assigned to queue 0 to ensure it receives the highest priority and minimal latency.
Security and Quality of Service
Question
An engineer must configure egress QoS for voice traffic. Which queue must the engineer configure on the WAN Edge router to accomplish the task?
Options
- Aqueue 0
- Bqueue 1
- Cqueue 3
- Dqueues 7
Explanation
For egress QoS configuration on a Cisco WAN Edge router, voice traffic is typically assigned to queue 0 to ensure it receives the highest priority and minimal latency.
Common mistakes.
- B. Queue 1 is typically used for control plane traffic in Cisco SD-WAN, not general voice traffic.
- C. Queue 3 is generally used for network management traffic or medium-priority application traffic, not specifically for high-priority voice.
- D. Queue 7 is typically used for best-effort or scavenger traffic, which is the lowest priority and unsuitable for voice.
Concept tested. Cisco SD-WAN QoS queue assignments for voice
Reference. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/sdwan-qos.html
Topics
#QoS#Voice Prioritization#Queuing#WAN Edge
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