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Spanning TreeeasyMultiple SelectObjective-mapped

JNCIS-ENT Spanning Tree Practice Question

Which TWO commands can be used to view spanning tree information on a Juniper EX Series switch? (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 spanning-tree interface

The commands 'show spanning-tree interface' and 'show spanning-tree bridge' are standard operational commands used to inspect spanning tree status and bridge parameters on Junos devices.

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 bridge spanning-tree status

    Why it's wrong here

    Incorrect operational path.

  • show spanning-tree interface

    Why this is correct

    Displays per-interface spanning tree states, roles, and port types.

  • show spanning-tree bridge

    Why this is correct

    Displays bridge identifiers, priorities, and root bridge information.

  • show rstp summary

    Why it's wrong here

    Incorrect command structure; summary is not used this way.

  • show protocols spanning-tree summary

    Why it's wrong here

    Incorrect command structure for Junos.

Visual reference

SW1 Root Bridge SW2 SW3 BLK DP DP RP RP STP blocks one link to prevent loops DP = Designated Port RP = Root Port BLK = Blocked

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 →

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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.