GIAC GNFA Q&A - in .pdf

  • Exam Code: GNFA
  • Exam Name: GIAC Network Forensic Analyst (GNFA)
  • Updated: Sep 14, 2026
  • Q & A: 97 Questions and Answers
  • PDF Price: $59.98
  • Printable GIAC GNFA PDF Format. It is an electronic file format regardless of the operating system platform.
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GIAC GNFA Q&A - Testing Engine

  • Exam Code: GNFA
  • Exam Name: GIAC Network Forensic Analyst (GNFA)
  • Updated: Sep 14, 2026
  • Q & A: 97 Questions and Answers
  • Install on multiple computers for self-paced, at-your-convenience training.
  • PC Test Engine Price: $59.98
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GIAC GNFA Exam Syllabus Topics:
SectionObjectives
Packet Capture and Traffic Analysis- Packet acquisition techniques
  • 1. tcpdump usage and filtering
    • 2. PCAP collection best practices
      - Traffic inspection tools
      • 1. Wireshark analysis workflows
        • 2. Protocol decoding and inspection
          Network Forensic Investigation- Incident reconstruction
          • 1. Attribution and artifact correlation
            • 2. Timeline creation from PCAP/logs
              - Evidence handling
              • 1. Data integrity validation
                • 2. Chain of custody considerations
                  Network Fundamentals for Forensics- Network architecture and traffic flow
                  • 1. Client-server communication patterns
                    • 2. Network segmentation and visibility
                      - TCP/IP protocol suite understanding
                      • 1. TCP vs UDP behavior analysis
                        • 2. IP addressing and subnetting
                          Incident Response and Reporting- Response workflow
                          • 1. Network-based investigation integration
                            • 2. Containment and eradication support
                              - Reporting and documentation
                              • 1. Executive-level summarization
                                • 2. Technical reporting structure
                                  Network Intrusion Detection and Analysis- Malicious traffic identification
                                  • 1. Lateral movement indicators
                                    • 2. Command and control detection patterns
                                      - IDS/IPS interpretation
                                      • 1. Signature vs anomaly detection
                                        • 2. Alert triage and validation
                                          Network Protocol Analysis- Transport and session behavior
                                          • 1. TLS/SSL inspection concepts
                                            • 2. Session reconstruction techniques
                                              - Application layer protocols
                                              • 1. HTTP/HTTPS traffic analysis
                                                • 2. DNS query and response forensics
                                                  GIAC Network Forensic Analyst (GNFA) Sample Questions:
                                                  Question #1

                                                  A network administrator notices that an internal web server is being accessed from multiple external sources in an unusual pattern. What security proxy feature would help in identifying and mitigating this attack?
                                                  Response:

                                                  • A. Data compression
                                                  • B. DNS caching
                                                  • C. Application-layer filtering
                                                  • D. Port forwarding
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: C  🗳️

                                                  Question #2

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

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

                                                  Correct Answer: A  🗳️

                                                  Question #3

                                                  A network administrator is investigating slow network performance and suspects excessive broadcast traffic. The admin captures packets and sees that a large number of ARP requests are being sent. Which of the following attacks is most likely occurring?
                                                  Response:

                                                  • A. ARP Poisoning
                                                  • B. ICMP Flood
                                                  • C. TCP SYN Flood
                                                  • D. DNS Spoofing
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: A  🗳️

                                                  Question #4

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

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

                                                  Correct Answer: B  🗳️

                                                  Question #5

                                                  Which of the following is a security risk associated with open Wi-Fi networks?
                                                  Response:

                                                  • A. Encryption key rotation
                                                  • B. VLAN segmentation
                                                  • C. Multi-factor authentication
                                                  • D. Unauthenticated access
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: D  🗳️

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