ISC Security Architecture Modeling Practice Question
When evaluating a software-defined perimeter (SDP), which architecture principle is being primarily enforced?
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
✓
Zero Trust
SDP enforces 'Zero Trust' by requiring authentication and authorization before the network connection is made.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Defense in depth
Why it's wrong here
While true, Zero Trust is the specific principle for SDP.
- ✗
Perimeter security
Why it's wrong here
SDP is designed to replace the traditional perimeter.
- ✗
Fail-safe defaults
Why it's wrong here
This is a design principle, but SDP is an architectural implementation.
- ✓
Zero Trust
Why this is correct
SDP is a physical implementation of Zero Trust architecture.
About these practice questions
This ISC question is part of Courseiva's 208-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 (ISC)² exam blueprint
This ISC practice question is part of Courseiva's free (ISC)² 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 ISC exam.