JNCIS-ENT High Availability Practice Question
Which TWO operational commands are used to check the health and status of Routing Engines and GRES on an MX series router? (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
✓
show chassis routing-engine
Administrators use 'show chassis routing-engine' and 'show system alarms' or similar chassis commands.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
show chassis routing-engine
Why this is correct
Displays RE status, master/backup roles, CPU/memory usage, and GRES synchronization.
- ✗
show vrrp summary
Why it's wrong here
Displays VRRP group states, not chassis routing engine status.
- ✗
show lacp statistics
Why it's wrong here
Displays LACP packet counts, not routing engine health.
- ✓
show chassis alarms
Why this is correct
Displays hardware and redundancy alarms across the chassis.
- ✗
show virtual-chassis
Why it's wrong here
Applies to EX Series Virtual Chassis, not modular MX series routers.
About these practice questions
Courseiva writes every JNCIS-ENT question from scratch — 506 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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.