JNCIP-ENT BGP Advanced Practice Question
Which THREE methods can be used on Junos devices to influence inbound BGP traffic selection from external ASNs? (Choose three)
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
✓
AS path prepending outbound to external peers.
Inbound traffic from external peers can be influenced by AS path prepending, modifying MED, or utilizing specific BGP communities accepted by transit providers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Adjusting the local preference attribute on incoming EBGP updates.
Why it's wrong here
Local preference is an IBGP attribute and is ignored or overwritten on incoming EBGP updates by default.
- ✓
AS path prepending outbound to external peers.
Why this is correct
Prepending lengthens the AS path, making the path less desirable to external peers.
- ✓
Utilizing provider-supported BGP communities to influence upstream routing policies.
Why this is correct
Many ISPs support specific communities to alter local preference or prepending upstream.
- ✗
Changing the local router's weight attribute for incoming EBGP routes.
Why it's wrong here
Weight is strictly local to the router and has no impact on external peers' decisions.
- ✓
Sending specific MED values to external peers.
Why this is correct
MED can influence upstream autonomous systems in choosing an entry point.
About these practice questions
Courseiva writes every JNCIP-ENT question from scratch — 336 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.