SDSI Secure Infrastructure Design Practice Question
When designing a secure management plane, why is it critical to use a dedicated Out-of-Band (OOB) network?
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
✓
To prevent management plane saturation during a data plane DoS attack.
OOB management isolates management traffic from data plane traffic, preventing potential DDoS attacks on the management interface.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To reduce the cost of cabling.
Why it's wrong here
OOB increases cabling requirements.
- ✓
To prevent management plane saturation during a data plane DoS attack.
Why this is correct
Isolating management traffic ensures administrators can reach devices during congestion.
- ✗
To increase the throughput of user traffic.
Why it's wrong here
OOB does not affect data plane throughput.
- ✗
To allow for DHCP-based addressing of management interfaces.
Why it's wrong here
OOB management usually requires static addressing.
About these practice questions
Courseiva writes every SDSI question from scratch — 298 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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 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.