GIAC : GCIA Questions & Answers

Last Updated: Sep 20, 2026

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How much GCIA Exam cost

The price of the GCIA exam is $1,899.labotarty exam of GCIA is $2,459 and written exam has cost $499

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The benefit in Obtaining the GCIA Exam Certification

Advantages of the GIAC certification in information security for individuals. For system and network administrators and security professionals, the program offers additional guarantees of knowing what activities should be carried out to protect systems and networks and of having the necessary skills to perform these activities.

Candidates for GCIA Validation

The GIAC GCIA certification exam targets those individuals who want to leverage their knowledge on host monitoring, intrusion detection, and traffic analysis. This test is also suitable for any practitioner who occupies roles dedicated to intrusion detection. Then, system analysts or network engineers are interested in taking this certification test. Another category of specialists is formed of network administrators, security analysts, and hands-on security managers. Apart from them, any individual who wants to consolidate his/her skills in monitoring and configuring systems dedicated to intrusion detection, or interpret different data for network traffic analysis can be a target candidate for this GCIA test.

Reference: http://www.giac.org/certification/certified-intrusion-analyst-gcia

What is the duration, language, and format of GCIA Exam

Format: Multiple choices, multiple answers

  • Length of Examination: 4 Hours
  • Passing score: 73%
  • Language: English
  • Number of Questions: 100-150

GIAC GCIA Exam Syllabus Topics:

SectionObjectives
Topic 1: Network Traffic Forensics and Monitoring- IP Headers
  • 1. IP packet header analysis
    - SiLK and Other Traffic Analysis Tools
    • 1. Traffic and flow analysis tools
      - Fragmentation
      • 1. Fragmentation analysis and fragmentation-based attacks
        - Network Forensics and Traffic Analysis
        • 1. Analyzing packet captures, NetFlow, and log data
          - Packet Engineering
          • 1. Packet crafting and manipulation
            - Wireshark Fundamentals
            • 1. Analyzing normal and malicious network traffic
              - Tcpdump Filters
              • 1. Creating tcpdump filters based on criteria
                Topic 2: Fundamentals of Traffic Analysis and Application Protocols- Concepts of TCP/IP and the Link Layer
                • 1. TCP/IP communications model and link layer operations
                  - IPv6
                  • 1. IPv6 concepts and differences from IPv4
                    - UDP and ICMP
                    • 1. UDP and ICMP protocol analysis
                      - TCP
                      • 1. TCP behavior analysis and anomaly identification
                        - Application Protocols
                        • 1. Application layer protocol dissection and analysis
                          Topic 3: Open-Source Intrusion Detection Systems (IDS): Snort and Zeek- Advanced IDS Concepts
                          • 1. IDS tuning methods and correlation issues
                            - IDS Fundamentals and Network Architecture
                            • 1. IDS concepts, architecture options, and deployment considerations
                              - Intrusion Detection System Rules
                              • 1. Creating IDS rules to detect malicious activity
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