JNCIS-ENT BGP Practice Question
Which TWO actions can be performed using Junos routing policies applied to BGP? (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
✓
Accepting or rejecting routes based on AS_PATH regular expressions.
Routing policies can modify path attributes such as local preference and MED, as well as accept or reject routes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Accepting or rejecting routes based on AS_PATH regular expressions.
Why this is correct
Routing policies match AS_PATH and accept or reject routes accordingly.
- ✗
Changing the TCP port used for BGP session establishment from 179 to another port.
Why it's wrong here
BGP TCP port 179 cannot be changed via routing policies.
- ✗
Directly modifying the physical interface speed when BGP flaps.
Why it's wrong here
Physical interface properties cannot be changed by routing policies.
- ✗
Encrypting BGP payload data using policy-based IPsec keys.
Why it's wrong here
Encryption is handled at the IPsec/security layer, not routing policy.
- ✓
Modifying the Local Preference attribute on incoming eBGP routes.
Why this is correct
Import policies on eBGP can set local preference.
About these practice questions
Courseiva writes every JNCIS-ENT question from scratch — 519 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 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.