GIAC GNFA : GIAC Network Forensic Analyst (GNFA)

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GIAC Network Forensic Analyst (GNFA) Sample Questions:

1. A security analyst is reviewing NetFlow data and notices a sudden increase in outbound connections to an unfamiliar IP address. The majority of the connections originate from a single internal workstation. What is the most likely cause?
Response:

A) Normal traffic fluctuation
B) A user downloading a large file
C) A botnet infection exfiltrating data
D) An error in NetFlow collection

2. What is the primary purpose of ICMP (Internet Control Message Protocol)?
Response:

A) Performing network diagnostics and reporting errors
B) Encrypting communication between endpoints
C) Routing data between networks
D) Managing TCP handshakes

3. Which of the following protocols operate at the transport layer of the OSI model?
(Select two.)
Response:

A) UDP
B) TCP
C) HTTP
D) ICMP

4. Which of the following best describes a Zero Trust network architecture?
Response:

A) A security model that requires continuous authentication and verification
B) A network that relies only on firewalls for security
C) A traditional perimeter-based security model
D) A security model where all traffic inside the network is considered trusted

5. Which of the following can be used to detect rogue access points in a wireless network?
Response:

A) Wireless Intrusion Detection System (WIDS)
B) Syslog
C) NetFlow
D) Wireshark

Solutions: