SDSI Secure Infrastructure Design Practice Question
You are designing a secure infrastructure for a SaaS-heavy office. What strategy best minimizes the impact on user experience while maintaining security?
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
✓
Implementing DIA with localized SASE security.
Direct Internet Access (DIA) via SD-WAN coupled with a SASE-based security stack provides fast SaaS access while maintaining inspection.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Backhauling all traffic to the data center.
Why it's wrong here
Backhauling introduces massive latency for SaaS users.
- ✓
Implementing DIA with localized SASE security.
Why this is correct
DIA optimizes latency, and SASE provides distributed security.
- ✗
Using a client-based proxy for everything.
Why it's wrong here
Proxies introduce performance overhead.
- ✗
Bypassing all security for trusted SaaS apps.
Why it's wrong here
This leaves the network vulnerable to threats inside SaaS.
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.