GIAC GNFA : GIAC Network Forensic Analyst (GNFA)

GNFA pass collection

Exam Code: GNFA

Exam Name: GIAC Network Forensic Analyst (GNFA)

Updated: Sep 20, 2026

Q & A: 97 Questions and Answers

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GIAC GNFA Exam Syllabus Topics:

SectionObjectives
Topic 1: Network Forensics Fundamentals- Network Forensic Concepts
  • 1. Traffic reconstruction
  • 2. Network evidence acquisition
  • 3. Packet analysis fundamentals
Topic 2: Network Protocol Analysis- Protocol Identification and Interpretation
  • 1. HTTP and HTTPS analysis
  • 2. DNS traffic analysis
  • 3. Email protocol analysis
  • 4. TCP/IP analysis
Topic 3: Log and Metadata Analysis- System and Network Logs
  • 1. Proxy and web logs
  • 2. NetFlow and metadata analysis
  • 3. Firewall log analysis
Topic 4: Wireless and Encrypted Traffic Analysis- Advanced Traffic Analysis
  • 1. TLS and SSL investigations
  • 2. Wireless protocol analysis
  • 3. Encrypted traffic inspection
Topic 5: Intrusion Detection and Threat Hunting- Threat Detection Techniques
  • 1. Indicators of compromise
  • 2. Anomalous traffic detection
  • 3. Network intrusion investigations
  • 4. Threat hunting methodologies
Topic 6: Incident Response and Investigation- Investigation Procedures
  • 1. Evidence handling
  • 2. Reporting and documentation
  • 3. Incident scoping

GIAC Network Forensic Analyst (GNFA) Sample Questions:

Question #1

Which of the following network protocols is commonly used for email transmission over the internet?
Response:

  • A. FTP
  • B. SMTP
  • C. HTTP
  • D. SNMP
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #2

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
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

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

  • A. Routing data between networks
  • B. Performing network diagnostics and reporting errors
  • C. Managing TCP handshakes
  • D. Encrypting communication between endpoints
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #4

Which technologies are commonly used in network segmentation strategies?
(Select two.)
Response:

  • A. VPN
  • B. VLANs
  • C. MPLS
  • D. IPv6
Reveal Solution  Discussion  0

Correct Answer: B,C  🗳️

Question #5

Which wireless frequency band provides better penetration through walls but lower data speeds?
Response:

  • A. 60 GHz
  • B. 6 GHz
  • C. 2.4 GHz
  • D. 5 GHz
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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