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GIAC Digital Forensics GNFA

GNFA

Exam Code: GNFA

Exam Name: GIAC Network Forensic Analyst (GNFA)

Updated: Jul 05, 2026

Q&A Number: 97 Q&As

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GIAC Network Forensic Analyst (GNFA) Sample Questions:

1. What is a key advantage of using a proxy-based firewall compared to a packet-filtering firewall?
Response:

A) Proxy-based firewalls inspect entire application-layer data
B) Proxy-based firewalls cannot block specific content types
C) Packet-filtering firewalls are more secure
D) Packet-filtering firewalls work at the application layer


2. Which tools are useful for network protocol reverse engineering?
(Select two.)
Response:

A) Wireshark
B) Nessus
C) Kali Linux
D) IDA Pro


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


4. Which type of network topology is most resilient against a single point of failure?
Response:

A) Star
B) Bus
C) Mesh
D) Ring


5. A company is experiencing a data breach and suspects an insider threat. Which logs would be most useful in identifying the responsible party?
Response:

A) File access and authentication logs
B) DNS query logs
C) Web server logs
D) Firewall logs


Solutions:

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

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