CCSP Cloud Platform and Infrastructure Security Practice Question
In a cloud VPC, what is the difference between security groups and network ACLs (NACLs)?
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
✓
Security groups are stateful and support allow rules only; NACLs are stateless and support allow and deny rules
Security groups are stateful and support allow rules only, while NACLs are stateless and support both allow and deny rules.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Security groups are stateful and support allow rules only; NACLs are stateless and support allow and deny rules
Why this is correct
Correct; this is the key difference.
- ✗
Security groups support allow and deny rules; NACLs support only allow
Why it's wrong here
Incorrect; security groups support only allow, NACLs support both.
- ✗
Security groups are stateless and NACLs are stateful
Why it's wrong here
Incorrect; it's the opposite.
- ✗
Security groups and NACLs are both stateless
Why it's wrong here
Incorrect; security groups are stateful.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP 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 CCSP exam.