JNCIS-ENT Tunnels Practice Question
When configuring a GRE tunnel source and destination address on a Junos device, which configuration hierarchy is used?
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
✓
set interfaces gr-0/0/0 unit 0 tunnel source <ip> destination <ip>
GRE tunnel source and destination addresses are defined under the specific logical tunnel interface 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.
- ✓
set interfaces gr-0/0/0 unit 0 tunnel source <ip> destination <ip>
Why this is correct
This is the correct Junos CLI syntax for defining GRE tunnel endpoints.
- ✗
set routing-options tunnels source <ip> destination <ip>
Why it's wrong here
Routing-options does not house tunnel endpoints.
- ✗
set protocols gre source <ip> destination <ip>
Why it's wrong here
There is no protocols gre hierarchy in Junos.
- ✗
set system tunnel source <ip> destination <ip>
Why it's wrong here
System tunnel is an invalid configuration path.
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.