JN0-106 Networking Fundamentals Practice Question
A Juniper router is configured with two static routes to the same destination network, both with the same preference. One route has a metric of 5, the other a metric of 10. Which route will be installed in the routing table?
⚠ Common exam trap
Watch out — candidates often confuse metric with preference or assume that both routes will be installed for load balancing, but JUNOS requires equal metrics (and equal preferences) for ECMP, not just equal preferences.
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
✓
The route with metric 5 is installed
In JUNOS, when multiple static routes to the same destination have the same preference (administrative distance), the route with the lower metric is selected for installation in the routing table. Here, metric 5 is lower than metric 10, so the route with metric 5 is installed. This behavior follows the standard route selection process where preference is evaluated first, then metric (also called cost or next-hop metric) as a tiebreaker.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Neither route is installed because they conflict
Why it's wrong here
Static routes can coexist; the best is chosen.
- ✓
The route with metric 5 is installed
Why this is correct
Lower metric is preferred when preference is equal.
- ✗
The route with metric 10 is installed
Why it's wrong here
Higher metric is worse.
- ✗
Both routes are installed with equal preference
Why it's wrong here
Only the best route is installed.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This JN0-106 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 JN0-106 exam.