350-501 Automation and Quality of Services Practice Question
In a CBWFQ policy with LLQ, which statement is true regarding the bandwidth command for non-priority classes?
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
✓
The sum of bandwidth for all classes must be less than 100%
The bandwidth command can specify a percentage or absolute bandwidth, but the sum must not exceed the available bandwidth (interface bandwidth minus LLQ).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The bandwidth can exceed the interface speed if shaped
Why it's wrong here
Bandwidth cannot exceed available capacity.
- ✓
The sum of bandwidth for all classes must be less than 100%
Why this is correct
Total bandwidth allocated must not exceed 100% of the interface bandwidth (after LLQ).
- ✗
Bandwidth is not used if LLQ is present
Why it's wrong here
Non-priority classes still require bandwidth.
- ✗
The bandwidth command is optional in CBWFQ
Why it's wrong here
Without bandwidth, default fair queuing may apply.
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