You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
GIAC (SANS)GIAC Network Forensic Analyst
The GIAC Network Forensic Analyst (GNFA) certification validates advanced skills in network forensic investigations, from analyzing network traffic captures and metadata to reverse-engineering protocols and identifying malicious activity. Designed for incident responders, forensic analysts, and threat hunters, GNFA holders are equipped to process both normal and abnormal network activity and deliver actionable intelligence. Earning GNFA demonstrates hands-on, real-world capability in one of cybersecurity's most critical investigative disciplines.
Exam formatCyberLive: Hands-on, performance-based exam in a realistic lab environment
Duration180 minutes
DeliveryGIAC (via ProctorU for remote, Pearson VUE for onsite)
Passing score70%
Free questions363
Content last reviewed 30 July 2026 · Up to date
The certification
What GIAC Network Forensic Analyst proves, and what it asks of you
What this certification covers, who it is written for, and what the exam itself looks like on the day.
4domains
8objectives
67concepts
What it is
What this certification is
What it validates, who it is written for, and the experience it assumes.
About this certification
The GIAC Network Forensic Analyst (GNFA) certification validates a practitioner's ability to perform advanced analysis of network forensic artifacts. GNFA-certified professionals are qualified to process and interpret normal and abnormal network activity, and to analyze application activity through system logs, network traffic captures, and network metadata. The certification covers network architecture, network protocols, and network protocol reverse engineering, as well as encryption and encoding, NetFlow analysis and attack visualization, and security event and incident logging.
GNFA also emphasizes the practical use of network analysis tools and open-source network security proxies, ensuring that certified individuals can apply their knowledge in real-world environments. The exam is delivered in a hands-on CyberLive format, replacing traditional multiple-choice testing with performance-based challenges in realistic lab environments. This approach validates not just theoretical understanding but the actual skills needed to investigate network intrusions, hunt threats, and support incident response teams effectively.
Who it’s for
The GNFA certification is designed for professionals who are responsible for investigating network-based security incidents and analyzing network traffic to identify malicious activity. This includes incident response team members, forensic analysts and specialists, threat hunters, law enforcement officers, federal agents, and detectives, as well as SOC personnel. It is also well-suited for information security practitioners and managers, network defenders and engineers, and other IT professionals who need to understand network protocols, analyze network captures, and interpret security events to protect their organizations. The certification is ideal for those who want to demonstrate advanced, hands-on network forensic skills.
Recommended experience
GIAC recommends practical work experience in network security and forensics, along with training from SANS or equivalent college-level courses or self-paced study. Hands-on experience with network traffic analysis tools and packet captures; Understanding of network protocols, network architecture, and common attack techniques; Familiarity with security event logging, SIEM, and incident response processes; Completion of SANS FOR572: Advanced Network Forensics and Analysis or equivalent training
The syllabus
What you’ll learn
Every domain and objective GIAC (SANS) measures, with the weight they carry on the exam.
The official GIAC (SANS) exam outline · checked 30 July 2026 · See the source
Network Fundamentals and Architecture
- Common Network Protocols
- Network Architecture
Network Traffic Analysis and Visualization
- NetFlow Analysis and Attack Visualization
- Network Protocol Reverse Engineering
Security Controls and Monitoring
- Open Source Network Security Proxies
- Security Event and Incident Logging
Advanced Analysis Techniques
- Encryption and Encoding
- Wireless Network Analysis
On the day
The exam itself
Everything GIAC (SANS) publishes about sitting it, and nothing we inferred.
Prerequisites
No mandatory prerequisites — this certification has no required predecessor exam or credential.
CertificationGIAC Network Forensic Analyst
Exam formatCyberLive: Hands-on, performance-based exam in a realistic lab environment
Duration180 minutes
Questions66 questions
Passing score70%
DeliveryGIAC (via ProctorU for remote, Pearson VUE for onsite)
LanguagesEnglish
After you pass
Where this credential goes next
The path GIAC (SANS) lays out, how the credential is kept, and where to book.
Step-by-step path to GIAC Network Forensic Analyst
Credential earnedGIAC Network Forensic Analyst Certification Renewal and maintenance
GIAC certifications must be renewed every four years by earning 36 Continuing Professional Education (CPE) credits or by retaking the exam. Stay current with the latest technologies and maintain your certification.
Learn more about renewal requirements Lifecycle status
This certification is currently active and available. GIAC (SANS) maintains this certification to validate current skills and industry relevance.
Exam status: ActiveMaintained by GIAC (SANS)
Exam registration
Register for the exam through GIAC (via ProctorU for remote, Pearson VUE for onsite), GIAC (SANS)’s authorized testing partner.
Schedule your examVisit the official GIAC (SANS) certification page for exam policies and requirements.
View the official pageYour coach
And when you are serious, your coach Pip takes over
Your coach in the app reads what you have answered with the book closed and tells you one thing to do tonight. It will not count an answer you gave with the page open, and it will tell you when you are not ready.
See how the coach worksBefore you book
Questions people ask
How does the CyberLive format differ from traditional multiple-choice exams?
CyberLive replaces traditional multiple-choice testing with performance-based challenges in realistic lab environments. You work with virtual machines, real security tools, and authentic code to complete tasks that mirror real-world scenarios, validating your hands-on capability.
What are the proctoring options for the GNFA exam?
All GIAC certification exams are proctored. You can choose remote proctoring through ProctorU or onsite proctoring through Pearson VUE. Details on delivery are provided after registration.
How long do I have to take the exam after registering?
Once your certification attempt is activated in your GIAC account, you have 120 days to complete the exam. You will receive an email notification when your attempt is activated.
What is the retake policy if I fail the GNFA exam?
GIAC's retake policy allows candidates to retake the exam after a waiting period. Specific waiting periods and attempt limits are detailed in your GIAC account and the official GIAC policies.
Are there any hands-on labs or practical components in the GNFA exam?
Yes, the GNFA exam is delivered in the CyberLive format, which is entirely hands-on. You will interact with virtual machines and use real security tools to solve investigative challenges.
What job roles does the GNFA certification align with?
GNFA is designed for incident response team members, forensic analysts, threat hunters, law enforcement officers, SOC personnel, network defenders, and IT professionals who need to analyze network traffic and investigate security incidents.
Can I earn CPE credits for renewing my GNFA certification by taking other GIAC exams?
Yes, passing other GIAC certification exams can earn CPE credits that count toward your GNFA renewal. The GIAC renewal policy details how to assign CPEs from various activities.
Is the GNFA exam available in languages other than English?
The official exam page does not list additional language options, so the exam is currently offered in English only.
Information freshness · Content last reviewed on 2026-07-30 Up to date
Practice free questions 363 questions, free, no account needed.
The curriculum
The whole exam, mapped and written
Every domain, every objective, and every concept GIAC (SANS) measures — each one written out.
4domains
8objectives
67concepts
76free pages
The domains, and what sits inside them
Every objective below is a page you can open and practise now, without an account.
The official GIAC (SANS) exam outline · checked 30 July 2026 · See the source
1Network Fundamentals and Architecture95 questions
2Network Traffic Analysis and Visualization97 questions
3Security Controls and Monitoring92 questions
4Advanced Analysis Techniques79 questions
Not a table of contents
Every line on this map already opens
In front of every objective the practice pages are already there, free and without an account. This is one objective, opened.
Common Network Protocols12 pagesOpen →
Free in front of it
56 questions on this objective, five to a page. Every range above is a real page, open now, with no account.
Reading the map is not the same as knowing the ground
The curriculum tells you what is on the exam. Proving you know it is a different job — and it is the one the closed-book run does.
Free questions
363 questions. No account, no card.
The whole bank is open. 5 questions to a page, every answer explained, and a discussion thread on each one.
363questions
76pages
8objectives
Freealways
Browse by domain
Every objective, and every page range, is a link — so you can pick up exactly where you left off.
1Network Fundamentals and Architecture95 questions
2Network Traffic Analysis and Visualization97 questions
3Security Controls and Monitoring92 questions
4Advanced Analysis Techniques79 questions
What a practice page gives you
1Five to a page
Short enough to finish, long enough to matter.
2Every answer explained
Not only which one is right — why the others are wrong.
3A discussion on each
Ask, answer, and vote. Every question has its own thread.
A question, and the idea behind it
Every question comes from a concept
These are not trivia. Each one is written against a concept in the book, so when you get one wrong there is somewhere to go and find out why.
The visual book
See it once. Carry it into the exam.
The pages shown here come from our AI-900 book — an example of how each concept is written in plain language and, where the idea needs one, drawn as a full page you can take in at a glance.
67concepts
363free questions
Why a picture, and not another paragraph
Three reasons, and each one is a real finding rather than a slogan.
You can see it againThe whole idea at onceWhere it starts, what happens in the middle, what comes out, and the mistake to avoid.
Multimedia principle · MayerThe look-alikes sit togetherThe pairs the exam tests are drawn side by side, so the difference is seen, not told.
Dual coding · PaivioWhat one page is made of
You are never asked to read a poster here — only to see how one is built. After that, every other page is legible at a glance.
1A numbered strip on top
The idea as a sequence, followed with a finger before a word is read.
2Panels for the parts
What it is, how the machine learns it, when it is the right tool.
3The trap, framed
The distinction the exam tests, given its own box instead of buried in prose.
4One line at the bottom
The sentence to carry into the exam room.
Open book, on purpose
Answer it with the picture beside you
This is the part that teaches. The illustration and the written explanation stay where they are while you work, so a scenario stops being a memory test and becomes something you can simply look at.
It teaches · it does not count
A smartphone uses AI to unlock when the owner looks at the camera. Which AI capability is being used?
AImage classification
BFacial recognition
COptical character recognition
DObject detection
Look at the five steps. Detect finds a face, align straightens it, encode turns it into numbers, search compares it with a stored face, and decide answers one question: is this the same person? Classification would only say “a face”. Detection would only draw a box. Neither decides whose.
Then the page shuts, and it starts counting
The same questions come back with the book closed — that run is the one that counts. After it, your coach picks one thing for tonight, sized to the time you have, and brings pages back before you lose them.
Testing effect · Roediger & Karpicke 2006 · spacing effect · Cepeda et al. 2006
Official resources
Straight from GIAC (SANS)
Where the exam is defined, scheduled and scored.
2official links
67concepts mapped
The source
GIAC (SANS)’s own pages
We link to them rather than repeat them, so nothing here goes stale behind them.
Checked against the source
Every objective on the official GIAC (SANS) outline already has questions here
We build from the official skills outline, not from a summary of it — 8 objectives, 67 concepts written under them, and free questions against every one. When GIAC (SANS) changes the outline, this page changes with it.
8objectives on the outline→67concepts written→363free questions
An official page tells you what will be asked. It cannot tell you what you will get right.
That is the only question worth answering the night before, and no link answers it. You answer it by taking the questions with the book closed, and seeing what comes back.