JNCIS-ENT Tunnels Practice Question
Which TWO statements are true regarding Junos tunnel interface naming conventions? (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
✓
GRE tunnel interfaces begin with the prefix 'gr-'.
GRE tunnels use 'gr-' and IP-IP tunnels use 'ip-' prefixes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
GRE tunnel interfaces begin with the prefix 'gr-'.
Why this is correct
GRE interfaces are named gr-FPC/PIC/PORT.
- ✗
Secure tunnel interfaces (IPsec) begin with the prefix 'gr-'.
Why it's wrong here
IPsec tunnels use the 'st-' prefix.
- ✗
Logical tunnel interfaces begin with the prefix 'ip-'.
Why it's wrong here
Logical tunnels use the 'lt-' prefix.
- ✓
IP-IP tunnel interfaces begin with the prefix 'ip-'.
Why this is correct
IP-IP interfaces are named ip-FPC/PIC/PORT.
- ✗
All tunnel interfaces must start with the prefix 'xe-'.
Why it's wrong here
xe- refers to 10-Gigabit Ethernet physical interfaces.
About these practice questions
One of 506 original JNCIS-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 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.