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JNCIS-ENT Spanning Tree Practice Question

Which TWO parameters are typically configured when tuning RSTP timers on Junos EX Series switches? (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

max-age

Administrators can tune RSTP behavior using timers such as hello-time and max-age under the protocols rstp hierarchy.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • forward-delay-timer-scale

    Why it's wrong here

    Not a valid Junos parameter name.

  • edge-port-delay

    Why it's wrong here

    Edge ports do not use a configurable delay timer.

  • max-age

    Why this is correct

    Controls BPDU expiration timeout.

  • topology-change-interval

    Why it's wrong here

    Not a configurable timer parameter.

  • hello-time

    Why this is correct

    Controls BPDU transmission frequency.

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

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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.