JNCIS-ENT Spanning Tree Practice Question
You need to verify the regional configuration name and revision number currently active on an EX Series switch running MSTP. Which operational command should you use?
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 spanning-tree mstp configuration
The command 'show spanning-tree mstp configuration' displays the MST region name, revision number, and VLAN-to-instance mapping table.
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 protocols mstp status
Why it's wrong here
Not a valid Junos operational command.
- ✗
show mstp region detail
Why it's wrong here
Incorrect operational command path.
- ✗
show spanning-tree bridge
Why it's wrong here
Shows bridge and root IDs, not regional configuration parameters.
- ✓
show spanning-tree mstp configuration
Why this is correct
This command shows active MST region parameters, revision, and mappings.
Visual reference
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.