SSCP Access Controls Practice Question
Which TWO of the following are characteristics of the Biba integrity model? (Choose TWO.)
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
✓
No write-up
Biba is a MAC model for integrity with rules: no write-up (integrity levels) and no read-down (to prevent corruption).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
No write-up
Why this is correct
Subjects cannot write to higher integrity levels.
- ✗
No write-down
Why it's wrong here
This is not a Biba rule; Bell-LaPadula uses no write-down.
- ✗
No read-up
Why it's wrong here
This is Bell-LaPadula's simple security property.
- ✗
Discretionary access
Why it's wrong here
Biba is mandatory, not discretionary.
- ✓
No read-down
Why this is correct
Subjects cannot read from lower integrity levels.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SSCP 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 SSCP exam.