ISC Security Architecture Modeling Practice Question
Which THREE elements are essential to define a trust boundary? (Select THREE)
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
✓
Different access privileges
A trust boundary is defined by the transition between levels of access, authentication, or network zones.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Different access privileges
Why this is correct
Transitioning between privilege levels requires a boundary.
- ✗
Operating system type
Why it's wrong here
OS is not a determinant of trust boundary.
- ✓
Different authentication requirements
Why this is correct
Changing authentication domains creates a trust boundary.
- ✗
Hardware vendor
Why it's wrong here
Vendor is not a security boundary.
- ✓
Network zone separation
Why this is correct
Crossing between zones (e.g., public to private) is a boundary.
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 (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.