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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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Davida
5 days 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
10 days 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
15 days 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
20 days 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
25 days 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
1 month 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
1 month 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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