350-501 Automation and Quality of Services Practice Question
An SP is designing a QoS policy for a customer with voice, video, and data traffic. Which queuing mechanism provides a strict priority queue for voice while ensuring other queues do not starve?
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
✓
LLQ
LLQ provides a strict priority queue for real-time traffic (voice) and uses CBWFQ for other data classes with bandwidth guarantees.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
WFQ
Why it's wrong here
WFQ is flow-based and does not provide a strict priority queue.
- ✗
WRED
Why it's wrong here
WRED is a congestion avoidance mechanism, not queuing.
- ✓
LLQ
Why this is correct
LLQ combines a strict priority queue with CBWFQ for other classes.
- ✗
CBWFQ
Why it's wrong here
CBWFQ provides bandwidth queues but no strict priority queue.
Go deeper
Related to this question
About these practice questions
One of 971 original 350-501 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-501 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-501 exam.