ISC2 CC Network Security Practice Question
Which firewall type reads packet headers and also tracks the state of active connections to make filtering decisions?
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
✓
Stateful inspection
Stateful inspection firewalls maintain a state table to track connections, allowing return traffic for permitted outbound connections.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Stateful inspection
Why this is correct
Stateful firewalls track connection state.
- ✗
Packet filtering
Why it's wrong here
Packet filtering is stateless, only checks headers.
- ✗
Application proxy
Why it's wrong here
Application proxy inspects application data, but may not track connection state.
- ✗
NGFW
Why it's wrong here
NGFW includes stateful inspection plus more features, but stateful inspection is the core.
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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.