100+ Free GNFA Practice Questions
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Key Facts: GNFA Exam
50-66
Exam Questions
GIAC official exam format
3 hrs
Exam Duration
GIAC official exam format
70%
Passing Score
GIAC scientific passing point study (2016)
$999
Exam Fee
GIAC pricing page (2026)
$135,000
Average GIAC Salary
Dumpsgate GIAC salary data (2026)
4 yrs
Certification Validity
GIAC renewal policy
GIAC GNFA (Network Forensic Analyst) validates the ability to perform advanced analysis of network forensic artifacts. The exam has 50-66 questions over 2-3 hours with a 70% passing score. Key areas include network architecture, common network protocols, protocol reverse engineering, encryption and encoding, NetFlow analysis and attack visualization, security event and incident logging, network analysis tools, wireless network analysis, and open-source network security proxies. Exam fee is $999 with optional SANS FOR572 training at $8,000+. Open-book format. Renewal every 4 years via 36 CPE credits or retest ($499).
About the GNFA Exam
GNFA validates advanced network forensic analysis skills including packet capture analysis, protocol behavior interpretation, NetFlow analysis, encryption and encoding techniques, security event logging, and wireless network forensics. Based on the SANS FOR572 course, it includes CyberLive practical testing.
Questions
66 scored questions
Time Limit
3 hours
Passing Score
70%
Exam Fee
$999 (GIAC (Global Information Assurance Certification))
GNFA Exam Content Outline
Common Network Protocols
TCP/IP, DNS, HTTP, SMTP, and other protocols — their behavior, security risks, and forensic analysis
Network Architecture
Network design, deployment, transmission technologies, collection methodologies, and infrastructure forensics
Encryption and Encoding
Common encryption techniques, SSL/TLS analysis, encoding methods, and attacks on cryptographic controls
NetFlow Analysis and Attack Visualization
NetFlow data collection, flow analysis, attack pattern identification, and visualization tools
Network Protocol Reverse Engineering
Protocol analysis tools, unknown protocol identification, traffic decoding, and behavioral analysis
Security Event and Incident Logging
Log formats, syslog, Windows Event Logs, log aggregation, SIEM integration, and event correlation
Network Analysis Tools and Usage
Wireshark, tcpdump, Zeek (Bro), NetworkMiner, Arkime, tshark, and forensic analysis workflows
Wireless Network Analysis and Open-Source Proxies
Wireless forensics, 802.11 analysis, rogue AP detection, network security proxies, and proxy log analysis
How to Pass the GNFA Exam
What You Need to Know
- Passing score: 70%
- Exam length: 66 questions
- Time limit: 3 hours
- Exam fee: $999
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
GNFA Study Tips from Top Performers
Frequently Asked Questions
How many questions are on the GNFA exam?
The GNFA exam contains 50-66 questions including multiple-choice and CyberLive hands-on practical questions. The exact number may vary as GIAC reserves the right to change specifications without notice.
What score do I need to pass the GNFA exam?
The GNFA passing score is 70%, established through a scientific passing point study effective since December 2016. Your exact passing point is confirmed in your GIAC account when your certification attempt is activated.
Is the GNFA exam open book?
Yes, the GNFA exam is open book. You can bring printed materials and handwritten notes into the exam. Building a well-organized index is essential for quickly locating protocol details and tool syntax during the timed exam.
How much does the GNFA certification cost?
The GNFA exam fee is $999 for the initial attempt and $899 for retakes. The recommended SANS FOR572 course ranges from $8,000 to $9,000+ depending on delivery format (often includes the exam fee). Renewal is $499 every four years.
What tools should I know for the GNFA exam?
Key tools include Wireshark and tshark for packet analysis, tcpdump for capture, Zeek (formerly Bro) for protocol analysis and logging, NetworkMiner for artifact extraction, and Arkime for large-scale packet analysis. Familiarity with command-line options and display filters is essential.
How should I prepare for the GNFA exam in 2026?
Focus on protocol analysis fundamentals (highest-weighted area), build proficiency with Wireshark display filters and tshark, study NetFlow analysis for attack detection, understand encryption and TLS analysis, and practice with packet capture datasets from public CTF challenges.