ISC2 CC Security Principles Practice Question
A company classifies its data into four categories: Public, Internal, Confidential, and Restricted. Which classification requires the highest level of protection?
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
✓
Restricted
Restricted is the highest classification, often equated with top secret, requiring stringent controls.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Internal
Why it's wrong here
Internal data requires moderate protection.
- ✓
Restricted
Why this is correct
Correct. Restricted data is the most sensitive and requires the highest protection.
- ✗
Public
Why it's wrong here
Public data requires the least protection.
- ✗
Confidential
Why it's wrong here
Confidential requires high protection but not the highest.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CC practice question is part of Courseiva's free ISC2 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 CC exam.