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GIAC GNFA : GIAC Network Forensic Analyst (GNFA)

GNFA real exams

Exam Code: GNFA

Exam Name: GIAC Network Forensic Analyst (GNFA)

Updated: Aug 28, 2026

Q & A: 97 Questions and Answers

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GIAC GNFA Exam Syllabus Topics:

SectionObjectives
Log and Metadata Analysis- System and Network Logs
  • 1. Firewall log analysis
  • 2. Proxy and web logs
  • 3. NetFlow and metadata analysis
Wireless and Encrypted Traffic Analysis- Advanced Traffic Analysis
  • 1. Wireless protocol analysis
  • 2. TLS and SSL investigations
  • 3. Encrypted traffic inspection
Network Forensics Fundamentals- Network Forensic Concepts
  • 1. Traffic reconstruction
  • 2. Packet analysis fundamentals
  • 3. Network evidence acquisition
Intrusion Detection and Threat Hunting- Threat Detection Techniques
  • 1. Indicators of compromise
  • 2. Anomalous traffic detection
  • 3. Network intrusion investigations
  • 4. Threat hunting methodologies
Incident Response and Investigation- Investigation Procedures
  • 1. Incident scoping
  • 2. Evidence handling
  • 3. Reporting and documentation
Network Protocol Analysis- Protocol Identification and Interpretation
  • 1. Email protocol analysis
  • 2. TCP/IP analysis
  • 3. DNS traffic analysis
  • 4. HTTP and HTTPS analysis

GIAC Network Forensic Analyst (GNFA) Sample Questions:

Question 1

Which benefits do security proxies provide in enterprise environments?
(Select two.)
Response:

A. Preventing all phishing attacks
B. Reducing network latency
C. Content filtering and malware detection
D. Logging and monitoring network traffic


Question 2

Which of the following are features of a forward proxy?
(Select two.)
Response:

A. Caches frequently accessed web content
B. Functions only at the transport layer
C. Protects internal servers from direct exposure
D. Filters outgoing client requests


Question 3

What are common characteristics of rogue access points?
(Select two.)
Response:

A. They can be used for phishing attacks
B. They only exist in wired networks
C. They always use enterprise-level encryption
D. They broadcast unauthorized SSIDs


Question 4

What is the primary purpose of log normalization in security event logging?
Response:

A. To delete unnecessary logs for storage optimization
B. To store raw logs in different formats
C. To encrypt all log data before analysis
D. To convert log entries into a consistent format for analysis


Question 5

Which open-source tool is commonly used as a forward and reverse proxy for security analysis?
Response:

A. Snort
B. Wireshark
C. Burp Suite
D. Nessus


Solutions:

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

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