JNCIP-ENT Class OF Service Practice Question
Which TWO conditions must be met when configuring strict priority queuing for a forwarding class in Junos? (Choose two)
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
✓
A shaping rate should be applied to the priority queue to prevent starvation of other queues
Strict priority queues require a priority setting (high) and typically a shaping rate or limit to prevent starvation of other queues.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Behavior aggregate classifiers must be disabled on all egress interfaces
Why it's wrong here
BA classifiers are on ingress and unrelated to priority scheduling.
- ✓
A shaping rate should be applied to the priority queue to prevent starvation of other queues
Why this is correct
Shaping priority traffic is critical to prevent starvation.
- ✓
The queue must be configured with priority high
Why this is correct
priority high enables strict priority queuing.
- ✗
Buffer sizes must be set to zero for all priority queues
Why it's wrong here
Buffers are still required for bursts.
- ✗
The scheduler must have a transmit-rate percentage of exactly 100%
Why it's wrong here
transmit-rate is not required to be 100% for priority queues.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Juniper Networks exam blueprint
This JNCIP-ENT practice question is part of Courseiva's free Juniper Networks 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 JNCIP-ENT exam.