ISC Infrastructure And System Security Practice Question
You are deploying a Zero Trust architecture for a remote workforce. Which THREE of the following technologies should be implemented to effectively enforce granular access control at the application layer?
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
✓
Policy-Based Access Control (PBAC)
Micro-segmentation, Identity-Aware Proxy (IAP), and Policy-Based Access Control (PBAC) are pillars of modern Zero Trust architecture.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Traditional VPN
Why it's wrong here
VPNs are generally considered perimeter-based and allow broad network access.
- ✗
Network Perimeter Firewall
Why it's wrong here
Focuses on North-South traffic rather than granular application-layer identity.
- ✓
Policy-Based Access Control (PBAC)
Why this is correct
Uses attributes for fine-grained authorization decisions.
- ✓
Identity-Aware Proxy (IAP)
Why this is correct
Verifies identity and context before granting access to applications.
- ✓
Micro-segmentation
Why this is correct
Limits lateral movement by isolating workloads.
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.