ISC2 CC Network Security Practice Question
A company deploys a firewall that inspects packet headers and maintains a state table to track active connections. It drops any incoming packets that do not match an established connection. What type of firewall is this?
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 firewall
A stateful inspection firewall tracks connections and blocks unsolicited inbound traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Application proxy firewall
Why it's wrong here
Application proxy inspects application-layer data, not just state.
- ✓
Stateful inspection firewall
Why this is correct
Correct. Stateful inspection tracks connection state.
- ✗
Next-generation firewall
Why it's wrong here
NGFW includes additional features like IPS, but stateful inspection is a subset.
- ✗
Packet filtering firewall
Why it's wrong here
Packet filtering is stateless, does not maintain state.
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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.