JNCIP-ENT Interior Gateway Protocols Practice Question
An OSPF area in your network contains multiple ABRs. You need to suppress the generation of Type-4 summary LSAs into a totally stubby area. How does Junos handle this natively?
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
✓
Totally stubby areas automatically block Type-4 LSAs by design without additional configuration.
Totally stubby areas automatically block Type-3, Type-4, and Type-5 LSAs. No separate command is needed to suppress Type-4 LSAs once an area is defined as a totally stubby area.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
You must apply an export policy on the ABR blocking Type-4 LSAs.
Why it's wrong here
Area types manage LSA filtering natively; routing policies do not filter Type-4 LSAs directly.
- ✗
You must use set protocols ospf suppress-fa to remove Type-4 LSAs.
Why it's wrong here
Forwarding address suppression is unrelated to Type-4 LSAs.
- ✓
Totally stubby areas automatically block Type-4 LSAs by design without additional configuration.
Why this is correct
Type-4 LSAs (ASBR summaries) are blocked along with Type-3 and Type-5 LSAs in totally stubby areas.
- ✗
You must configure set protocols ospf area <area> stub no-summary-asbr.
Why it's wrong here
This command does not exist.
Visual reference
About these practice questions
One of 332 original JNCIP-ENT practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.