GIAC (SANS)

GIAC Network Forensic Analyst

GNFA

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.

Practice Free Questions

4Domains

8Objectives

76Practice pages

363Free questions

GNFA free practice questions

Choose any objective and open any question page — no sign-in required.

Common Network Protocols

56 questions · 12 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45 46–50 51–55 56–56

Network Architecture

39 questions · 8 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–39

NetFlow Analysis and Attack Visualization

50 questions · 10 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45 46–50

Network Protocol Reverse Engineering

47 questions · 10 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45 46–47

Open Source Network Security Proxies

45 questions · 9 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45

Security Event and Incident Logging

47 questions · 10 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45 46–47

Encryption and Encoding

43 questions · 9 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–43

Wireless Network Analysis

36 questions · 8 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–36

Want a smarter study session?Try adaptive questions aimed at your weak spots, the illustrated book, and readiness you can trust.

Continue Free Practice

Percentages reflect share of the current practice bank, not official exam weightings. Every page above is a live, crawlable practice page (8 objectives · 76 pages).

GIAC Network Forensic Analyst

GNFA free practice questions

Domain 1 · Network Fundamentals and Architecture26% of practice bank · 2 objectives · 95 questions26%

Domain 2 · Network Traffic Analysis and Visualization27% of practice bank · 2 objectives · 97 questions27%

Domain 3 · Security Controls and Monitoring25% of practice bank · 2 objectives · 92 questions25%

Domain 4 · Advanced Analysis Techniques22% of practice bank · 2 objectives · 79 questions22%