JNCIP-ENT IP Telephony Features Practice Question
You are configuring an EX3400 switch to support IP phones that require power redundancy. Which PoE management feature allows the switch to allocate power based on available PSU capacity while reserving a safety margin?
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
✓
The system automatically accounts for redundant power supplies, but power management thresholds can be adjusted via system PoE budget settings.
PoE power management configuration allows setting guard bands or managing power budgets based on active power supplies.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
set chassis poe redundant-psu enable
Why it's wrong here
Chassis power supplies are managed automatically without this specific command.
- ✓
The system automatically accounts for redundant power supplies, but power management thresholds can be adjusted via system PoE budget settings.
Why this is correct
Junos switches dynamically adjust total PoE budgets based on installed and active power supplies.
- ✗
set poe management-mode power-limit
Why it's wrong here
power-limit is not the primary command for guard band management.
- ✗
set poe redundancy-mode full
Why it's wrong here
redundancy-mode full is not a valid Junos CLI syntax.
About these practice questions
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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 JNCIP-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 JNCIP-ENT exam.