JNCIS-ENT High Availability Practice Question
When configuring a Link Aggregation Group (LAG) on a Juniper switch, what is the naming convention used for the aggregated interface in the Junos CLI?
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
✓
ae0, ae1, ae2, etc.
Junos uses the 'aeX' naming convention (Aggregated Ethernet) for LAG interfaces.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
lag0, lag1, lag2, etc.
Why it's wrong here
The 'lag' prefix is not used in Junos CLI interface syntax.
- ✗
eth-trunk0, eth-trunk1, etc.
Why it's wrong here
This terminology is used by other vendor operating systems, not Junos.
- ✓
ae0, ae1, ae2, etc.
Why this is correct
Aggregated Ethernet interfaces are designated with the 'ae' prefix followed by an integer index.
- ✗
bond0, bond1, bond2, etc.
Why it's wrong here
The 'bond' prefix is typical of Linux network bonding, not Junos OS.
About these practice questions
This JNCIS-ENT question is part of Courseiva's 519-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. 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.