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GIAC GNFA exam : GIAC Network Forensic Analyst (GNFA)

GNFA Exam Questions
  • Exam Code: GNFA
  • Exam Name: GIAC Network Forensic Analyst (GNFA)
  • Updated: Oct 06, 2026
  • Q & A: 97 Questions and Answers
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GIAC GNFA Exam Syllabus Topics:

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

GIAC Network Forensic Analyst (GNFA) Sample Questions:

Question #1

Which of the following protocols provides secure file transfers by encrypting data during transmission?
Response:

  • A. HTTP
  • B. SFTP
  • C. Telnet
  • D. FTP
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #2

Your company is implementing a Zero Trust network model. Which approach would best align with Zero Trust principles?
Response:

  • A. Granting access based on IP address
  • B. Requiring continuous authentication and strict access controls
  • C. Allowing unrestricted lateral movement within the network
  • D. Using only perimeter-based firewalls
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #3

What types of security events should organizations prioritize in log analysis?
(Select two.)
Response:

  • A. CPU utilization logs
  • B. Failed login attempts
  • C. Routine system reboots
  • D. Large data transfers from internal to external networks
Reveal Solution  Discussion  0

Correct Answer: B,D  🗳️

Question #4

Which of the following is an indication of a custom or proprietary network protocol?
Response:

  • A. Use of open-source encryption libraries
  • B. Presence of cleartext credentials in packets
  • C. Standard TCP and UDP port usage
  • D. Non-standard packet structures and headers
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #5

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

  • A. To prevent all cyberattacks before they occur
  • B. To store all network activity indefinitely
  • C. To detect, investigate, and respond to security incidents
  • D. To replace the need for intrusion detection systems
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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