JNCIS-ENT IS IS Practice Question
You are configuring multi-topology IS-IS. What does this allow?
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
✓
Running separate topologies for different address families.
Multi-topology IS-IS allows for separate routing topologies for different protocol families (e.g., IPv4 and IPv6).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Load balancing over different physical paths.
Why it's wrong here
This is standard IS-IS behavior; multi-topology is for protocol isolation.
- ✗
Creating multiple areas within a single instance.
Why it's wrong here
Areas are defined by the area address.
- ✗
Increasing the maximum MTU.
Why it's wrong here
MTU is a physical link property.
- ✓
Running separate topologies for different address families.
Why this is correct
This is the core purpose of multi-topology.
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 JNCIS-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 JNCIS-ENT exam.