GIAC GNFA : GIAC Network Forensic Analyst (GNFA)

  • Exam Code: GNFA
  • Exam Name: GIAC Network Forensic Analyst (GNFA)
  • Updated: Jun 09, 2026     Q & A: 97 Questions and Answers

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GIAC Network Forensic Analyst (GNFA) Sample Questions:

1. Which open-source tools are commonly used for network security proxying?
(Select two.)
Response:

A) Wireshark
B) OpenVPN
C) Squid
D) Privoxy


2. What methods are used to identify the structure of an unknown network protocol?
(Select two.)
Response:

A) Packet inspection
B) Static code analysis
C) Watching video tutorials
D) Reverse engineering binaries


3. Which of the following are characteristics of the TCP protocol?
(Select two.)
Response:

A) Used for real-time applications
B) Best-effort delivery
C) Connection-oriented communication
D) Reliable data transfer


4. An organization notices an increase in wireless network congestion and connectivity issues. What steps should be taken to identify potential sources of interference?
Response:

A) Conduct a site survey to identify interference sources
B) Implement VLAN segmentation
C) Disable WPA2 encryption
D) Increase the power of the access points


5. A network administrator notices that an internal web server is being accessed from multiple external sources in an unusual pattern. What security proxy feature would help in identifying and mitigating this attack?
Response:

A) DNS caching
B) Application-layer filtering
C) Port forwarding
D) Data compression


Solutions:

Question # 1
Answer: C,D
Question # 2
Answer: A,D
Question # 3
Answer: C,D
Question # 4
Answer: A
Question # 5
Answer: B

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