350-601 Network Practice Question
A network engineer is configuring OSPF on a pair of Nexus 9000 switches acting as spine switches in a VXLAN fabric. The engineer needs to ensure that the spine switches do not become the DR for any VLAN. Which configuration should be applied?
⚠ Common exam trap
Cisco often tests the misconception that setting OSPF priority to 0 disables OSPF on the interface entirely, when in fact it only prevents DR/BDR election while still allowing neighbor adjacency formation.
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 ospf priority to 0 on the spine interfaces.
Setting the OSPF priority to 0 on the spine interfaces prevents the spine switches from participating in the DR/BDR election process, ensuring they never become the Designated Router (DR) for any VLAN. This is the standard method to suppress DR election on a multi-access network segment.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure passive-interface default under OSPF.
Why it's wrong here
Passive interface suppresses OSPF adjacencies, not DR election.
- ✗
Set ospf network type to point-to-multipoint.
Why it's wrong here
Point-to-multipoint still elects DRs in some scenarios.
- ✓
Set ospf priority to 0 on the spine interfaces.
Why this is correct
OSPF priority 0 prevents the router from participating in DR/BDR election.
- ✗
Set ospf priority to 255 on the spine interfaces.
Why it's wrong here
Priority 255 increases the chance of becoming DR.
Visual reference
Go deeper
Related to this question
About these practice questions
One of 984 original 350-601 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 by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-601 practice question is part of Courseiva's free Cisco 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 350-601 exam.