JNCIP-ENT IP Multicast Practice Question
Which TWO statements describe the function and operation of a PIM Bootstrap Router (BSR)? (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
✓
The BSR collects Candidate-RP messages and periodically distributes the RP-set to all PIM routers.
The BSR collects Candidate-RP advertisements and distributes the RP-set to all routers in the domain via bootstrap messages.
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 BSR acts as the data encapsulation point for multicast sources.
Why it's wrong here
Source encapsulation is performed by the Designated Router (DR).
- ✓
The BSR collects Candidate-RP messages and periodically distributes the RP-set to all PIM routers.
Why this is correct
The BSR gathers C-RP info and floods bootstrap messages domain-wide.
- ✗
The BSR forwards multicast data packets directly to receivers.
Why it's wrong here
The BSR manages control plane RP discovery, not data forwarding.
- ✓
All PIM routers in the domain dynamically learn the RP-set from the BSR messages.
Why this is correct
Routers use BSR messages to build identical RP-to-group mappings.
- ✗
The BSR is required to establish MSDP sessions between autonomous systems.
Why it's wrong here
BSR is an intra-domain PIM mechanism, whereas MSDP is used between RPs.
About these practice questions
Courseiva writes every JNCIP-ENT question from scratch — 332 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 →
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.