JNCIP-ENT Class OF Service Practice Question
You want to apply a rewrite rule on an outgoing interface to remark the DSCP bits of packets leaving your Juniper router. Where must this rewrite rule be applied within the CoS hierarchy?
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
✓
[edit class-of-service interfaces]
Rewrite rules in Junos are applied on egress interfaces under the interfaces statement within the class-of-service configuration hierarchy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
[edit firewall]
Why it's wrong here
Firewall filters are applied for packet filtering and match conditions.
- ✓
[edit class-of-service interfaces]
Why this is correct
Rewrite rules are applied on egress interfaces.
- ✗
[edit routing-options]
Why it's wrong here
Routing-options handles routing protocols and static routes.
- ✗
[edit class-of-service classifiers]
Why it's wrong here
Classifiers are applied on ingress interfaces.
About these practice questions
One of 332 original JNCIP-ENT 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 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.