SDSI Secure Infrastructure Design Practice Question
Which protocol is used for the control plane communication between Cisco SD-WAN controllers?
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
✓
OMP.
OMP (Overlay Management Protocol) is used for routing, policy, and service information exchange between SD-WAN components.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
EIGRP.
Why it's wrong here
EIGRP is an interior gateway protocol, not for SD-WAN control.
- ✗
BGP.
Why it's wrong here
BGP is used in the underlay, but OMP is the SD-WAN control plane protocol.
- ✗
OSPF.
Why it's wrong here
OSPF is an IGP, not for SD-WAN orchestration.
- ✓
OMP.
Why this is correct
OMP is the foundational control plane protocol for Cisco SD-WAN.
About these practice questions
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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 Cisco exam blueprint
This SDSI 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 SDSI exam.