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GIAC Network Forensic Analyst (GNFA) Sample Questions:

1. What are potential indicators of malicious network activity in an unknown protocol?
(Select two.)
Response:

A) Large encrypted data transfers to unknown IPs
B) Repeated failed login attempts
C) Traffic on well-known service ports
D) Use of TLS encryption

2. Which of the following is a benefit of using a transparent proxy?
Response:

A) It does not require client-side configuration
B) It eliminates the need for network monitoring
C) It blocks all traffic from unknown sources
D) It encrypts all internet traffic by default

3. What is the primary purpose of a VLAN in network architecture?
Response:

A) To logically segment networks without requiring physical separation
B) To replace firewalls in enterprise environments
C) To encrypt network traffic
D) To increase network speed

4. Which of the following are security risks associated with FTP?
(Select two.)
Response:

A) It is limited to local file transfers only
B) It is a UDP-based protocol
C) It lacks built-in encryption
D) Data is transmitted in plaintext

5. Which of the following best describes an SIEM (Security Information and Event Management) system?
Response:

A) A system that collects, normalizes, and analyzes security logs
B) A firewall rule enforcement mechanism
C) A device that encrypts all logs for security purposes
D) A tool that blocks malicious network traffic

Solutions: