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IP Telephony FeatureseasyMultiple ChoiceObjective-mapped

JNCIP-ENT IP Telephony Features Practice Question

What is the default behavior of an EX Series switch when an LLDP-MED capable IP phone connects and requests a network policy for voice VLAN?

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 switch responds with the configured LLDP-MED network policy containing the voice VLAN ID and Layer 2/3 priority markings.

LLDP-MED automatically provisions network policies to capable endpoints when properly configured on the switch.

Answer analysis

Option-by-option breakdown

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

  • The switch drops the LLDP packet unless explicit authorization is configured.

    Why it's wrong here

    LLDP packets are processed by default once LLDP is enabled globally.

  • The switch responds with the configured LLDP-MED network policy containing the voice VLAN ID and Layer 2/3 priority markings.

    Why this is correct

    The switch replies with the network policy TLV matching the configured parameters.

  • The switch converts the port into a full trunk interface automatically.

    Why it's wrong here

    The port remains configured as an access port with voice-vlan mapping.

  • The switch reboots the port to force DHCP discovery.

    Why it's wrong here

    Port rebooting is never a default discovery behavior.

Visual reference

Switch VLAN 10 Sales (192.168.10.0/24) PC-A PC-B VLAN 20 HR (192.168.20.0/24) PC-C PC-D Router VLANs isolate traffic — inter-VLAN routing requires a Layer 3 device

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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.