ISC Security Planning And Engineering Practice Question
Which THREE of the following are necessary to successfully implement Zero Trust in an existing enterprise environment?
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
✓
Identity-based authentication.
Strong identity verification, micro-segmentation of the network, and continuous monitoring are the three pillars of a successful Zero Trust implementation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Identity-based authentication.
Why this is correct
Zero Trust assumes identity is the new perimeter.
- ✓
Network micro-segmentation.
Why this is correct
Limits lateral movement in case of a breach.
- ✗
Using static IP addresses for all users.
Why it's wrong here
Static IPs are not an effective security control in Zero Trust.
- ✗
Trusting all traffic behind the firewall.
Why it's wrong here
This is the opposite of Zero Trust.
- ✓
Continuous monitoring and analytics.
Why this is correct
Enables real-time risk evaluation.
About these practice questions
One of 209 original ISC practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.