350-501 Automation and Quality of Services Practice Question
In a hierarchical QoS policy, the parent policy shapes to 20 Mbps. The child policy has a class for voice with priority and police rate 2 Mbps, and a class for data with bandwidth 10 Mbps. What is the maximum bandwidth voice traffic can consume under congestion?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
2 Mbps
Voice is in LLQ with a police rate of 2 Mbps; even though the parent shape is 20 Mbps, policing limits voice to 2 Mbps to prevent starvation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
8 Mbps
Why it's wrong here
Incorrect; no such limit.
- ✗
20 Mbps
Why it's wrong here
Incorrect; parent shape does not override police.
- ✗
10 Mbps
Why it's wrong here
Incorrect; that is the data bandwidth.
- ✓
2 Mbps
Why this is correct
Correct; policing limits voice to 2 Mbps.
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Written by Johnson Ajibi, MSc IT Security
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