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Description
If you spend your day watching network traffic for attacks, GCIA is the GIAC certification that shows you can spot and investigate intrusions. You'll want solid TCP/IP knowledge and some Linux command-line experience first. The practice test covers traffic analysis tools, packet and protocol analysis, intrusion detection and network forensics.
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GCIA Questions
Study from 140 practice questions aligned to the latest GCIA objectives.
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Frequently asked questions
Everything you need to know about prepping for GCIA.
What is the GCIA exam format?
How much does the GCIA exam cost?
What topics are on the GCIA exam?
- Traffic Analysis Tools and Techniques (25%)
- Packet Analysis and Protocol Dissection (20%)
- Intrusion Detection Systems (20%)
- Network Forensics and Threat Hunting (20%)
- TCP/IP Fundamentals and Network Architecture (15%)
How should I prioritize the GCIA syllabus?
Who should take the GCIA exam?
How to study for the GCIA exam?
- Study tips:
- Focus heavily on hands-on practice with Wireshark and tcpdump
- Build a home lab for IDS testing and configuration
- Practice writing and testing Snort rules
- Master BPF filter syntax for tcpdump
Is the GCIA exam active in 2026?
How long is the GCIA certification valid?
When was GCIA released and when does it retire?
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Is this the real GCIA exam?
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