JNCIS-ENT Protocol Independent Routing Practice Question
You need to configure a static route that acts as a discard route, ensuring that any traffic destined for a specific unassigned subnet is silently dropped. Which configuration syntax should you use?
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
✓
set routing-options static route 192.168.50.0/24 discard
Discard static routes are configured by appending the 'discard' keyword to the static route definition.
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 routing-options static route 192.168.50.0/24 drop
Why it's wrong here
'Drop' is not a valid static route action keyword in Junos.
- ✗
set routing-options static route 192.168.50.0/24 reject
Why it's wrong here
Reject sends an ICMP destination unreachable message, which is different from a silent discard.
- ✗
set routing-options static route 192.168.50.0/24 null0
Why it's wrong here
Null0 is Cisco IOS terminology, not Junos OS syntax.
- ✓
set routing-options static route 192.168.50.0/24 discard
Why this is correct
The 'discard' action configures a black hole route that drops packets without sending ICMP responses.
Visual reference
About these practice questions
This JNCIS-ENT question is part of Courseiva's 506-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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.