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Ericsson ECP-206 Exam - Topic 3 Question 51 Discussion

Which two statements are true about priority queuing (PQ)? (Choose two.)
C) Traffic in lower priority queues can be starved of bandwidth. and A) Traffic in the highest priority queue will experience the least amount of jitter and delay compared to traffic in the other queues.
D) Traffic in all queues are always guaranteed a minimum bandwidth.
B) Traffic in the highest priority queue is only reserved for voice traffic.

Ericsson ECP-206 Exam - Topic 3 Question 51 Discussion

Actual exam question for Ericsson's ECP-206 exam
Question #: 51
Topic #: 3
[All ECP-206 Questions]

Which two statements are true about priority queuing (PQ)? (Choose two.)

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Suggested Answer: C, A

Priority queuing (PQ) is a queuing method that establishes four interface output queues that serve different priority levels: high, medium, normal, and low. Traffic in the highest priority queue will experience the least amount of jitter and delay compared to traffic in the other queues, because PQ always services the higher-priority queues first. However, this can also cause traffic in lower priority queues to be starved of bandwidth, especially if the highest priority queue is oversubscribed. Traffic in the highest priority queue is not only reserved for voice traffic, but can also include network control and routing traffic. Traffic in all queues are not always guaranteed a minimum bandwidth, because PQ does not provide any bandwidth reservation mechanism.Reference:Quality of Service (QoS) Queues and Queuing Explained,Chapter: Configuring Priority Queueing - Cisco


by Tawna at Jan 27, 2026, 12:28 AM

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Valentine
5 days ago
True, but in VoIP, PQ is essential for quality.
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Novella
10 days ago
But it can starve lower-priority packets. Not ideal for all scenarios.
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Amalia
15 days ago
Agreed! It helps reduce latency for critical traffic.
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Rasheeda
2 months ago
PQ allows high-priority packets to be sent first.
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Tasia
2 months ago
I thought PQ was outdated with newer technologies!
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Melda
2 months ago
PQ can lead to starvation of lower-priority packets.
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Edgar
3 months ago
Wait, isn't PQ just for voice and video traffic?
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Bev
3 months ago
Totally agree, it's all about prioritizing traffic!
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Broderick
3 months ago
PQ allows high-priority packets to be processed first.
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Joseph
3 months ago
Prioritizing tasks is like playing favorites, but I guess it's necessary sometimes.
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Royce
3 months ago
Priority queuing is essential for real-time applications like video conferencing.
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Dell
3 months ago
I wonder if the priority queue can also prioritize my coffee breaks.
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Ahmad
4 months ago
Priority queuing helps to manage network traffic by prioritizing critical data.
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Domonique
4 months ago
The priority queue ensures that the most important tasks are processed first.
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Lera
4 months ago
There was a similar practice question that asked about the benefits of PQ, and I think it had to do with managing bandwidth effectively. Maybe that’s relevant here?
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Davida
5 months ago
I feel like I’ve seen something about how PQ can lead to starvation for lower-priority traffic, but I can’t recall if that’s a true statement or just a side effect.
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Shalon
5 months ago
I remember practicing a question about PQ where one option mentioned it helps reduce latency for critical applications. That might be one of the true statements.
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Yun
5 months ago
I think priority queuing allows certain types of traffic to be prioritized over others, but I'm not completely sure which statements are true.
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Alease
5 months ago
Ah, priority queuing, I've got this! The key is understanding how the queue processes items based on their assigned priorities. I'm ready to tackle this question.
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Raina
5 months ago
Hmm, priority queuing... I remember discussing this in class, but I'm a bit fuzzy on the specifics. I'll need to carefully read through the answer choices to see which ones ring true.
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Katie
6 months ago
Priority queuing is all about assigning different priorities to items in the queue, right? I'm pretty sure that's one of the key things, but I'll need to review my notes to be sure I can identify the true statements.
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Avery
6 months ago
I think I know the basics of priority queuing, but I'll need to think through the details to answer this question confidently.
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Ettie
I believe PQ allows important traffic to go first.
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