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Updated: Aug 31, 2026
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GIAC GCIA Exam Overview:
| Certification Vendor: | GIAC (SANS Institute) |
|---|---|
| Exam Name: | GIAC Certified Intrusion Analyst (GCIA) |
| Exam Number: | GCIA |
| Passing Score: | 67% |
| Real Exam Qty: | 106 |
| Exam Price: | $949 USD (standard GIAC certification exam attempt) |
| Related Certifications: | GIAC GCIH GIAC GSEC GIAC GCFA |
| Certificate Validity Period: | 4 years |
| Exam Format: | Open Book (Index Allowed), Proctored, Multiple Choice |
| Available Languages: | English |
| Exam Duration: | 240 minutes |
| Sample Questions: | GIAC GCIA Sample Questions |
| Exam Way: | Online proctored exam (remote) or authorized testing centers (SANS/Thales) |
| Pre Condition: | No mandatory prerequisites. Completion of SANS SEC503 (Intrusion Detection In-Depth) is strongly recommended. |
| Official Syllabus URL: | https://www.giac.org/certifications/certified-intrusion-analyst-gcia/ |
GIAC GCIA Exam Syllabus Topics:
| Topic | Details |
|---|---|
| Concepts of TCP/IP and the Link Layer | - The candidate will demonstrate understanding of the TCP/IP communications model and link layer operations. |
| Application Protocols | - The candidate will demonstrate knowledge and skill relating to application layer protocol dissection and analysis. |
| Fragmentation | - The candidate will demonstrate understanding of how fragmentation works, and how to identify fragmentation and fragmentation-based attacks in packet captures. |
| UDP and ICMP | - The candidate will demonstrate understanding of the UDP and ICMP protocols and the ability to discern between typical and anomalous behavior. |
| TCP | - The candidate will demonstrate understanding of the TCP protocol and the ability to discern between typical and anomalous behavior. |
| Wireshark Fundamentals | - The candidate will demonstrate skill associated with traffic analysis using Wireshark with an intermediate degree of proficiency. |
| Silk and Other Traffic Analysis Tools | - The candidate will demonstrate an understanding of SiLK and other tools to perform network traffic and flow analysis. |
| Advanced Analysis and Network Forensics | - The candidate will demonstrate competence in analyzing data from multiple sources (e.g. full packet capture, netflow, log files) as part of a forensic investigation. |
| IP Headers | - The candidate will demonstrate the ability to dissect IP packet headers and analyze them for normal and anomalous values that may point to security issues. |
| IPv6 | - The candidate will demonstrate knowledge of IPv6 and how it differs from IPv4. |
| Advanced IDS Concepts | - The candidate will demonstrate an understanding of IDS tuning methods and correlation issues. |
| Network Traffic Analysis | - The candidate will demonstrate the ability to analyze network and application traffic to identify both normal and malicious behaviors. |
| Packet Engineering | - The candidate will demonstrate knowledge relating to packet crafting and manipulation. |
| Tcpdump Filters | - The candidate will demonstrate ability to craft tcpdump filters that match on given criteria. |
| IDS Rules | - The candidate will create effective IDS rules to detect varied types of malicious activity. |
| IDS Fundamentals and Network Architecture | - The candidate will demonstrate knowledge of fundamental IDS concepts, such as network architecture options and benefits/weaknesses of common IDS systems. |
| DNS | - The candidate will demonstrate an understanding of how DNS works for both legitimate and malicious purposes. |
Reference: http://www.giac.org/certification/certified-intrusion-analyst-gcia
How to book GCIA Exams
In order to apply for the NET, You have to follow these steps
- Go to the GCIA Official Site
- Read the instruction Carefully
- Follow the given steps
- Apply for the GCIA
The GIAC GCIA exam is taken by those candidates who are interested in obtaining the GIAC Certified Intrusion Analyst certification.
GCIA Certified Professional Salary
- India:₹628736
- United States: $88,500
- England: £67995
- Europe:€79795
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