JNCIS-ENT OSPF Practice Question
You are configuring OSPF redistribution on a Junos router and want to ensure that external routes imported from a static routing table retain an escalating external metric. Which external route metric type (E1 or E2) should you choose if you want the internal cost to be added to the external cost during path selection?
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
✓
Type 1 (E1)
External Type 1 (E1) routes add the internal OSPF cost to the external redistribution cost, whereas External Type 2 (E2) routes use only the external cost, ignoring internal path costs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Type 7 (NSSA)
Why it's wrong here
Incorrect. Type 7 is specific to NSSAs and gets translated to Type 5.
- ✓
Type 1 (E1)
Why this is correct
Correct. E1 metrics incorporate both the external cost and the internal OSPF cost to the ASBR.
- ✗
Type 3 (E3)
Why it's wrong here
Incorrect. There is no Type 3 external route type in OSPF (Type 3 is an ABR summary LSA).
- ✗
Type 2 (E2)
Why it's wrong here
Incorrect. E2 metrics use a flat external cost and ignore internal OSPF path cost.
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.