GIAC (SANS)

GIAC Certified Intrusion Analyst

GCIA

The GIAC Certified Intrusion Analyst (GCIA) certification validates your ability to detect and analyze threats through network and host activity. It is designed for practitioners responsible for intrusion detection, traffic analysis, and monitoring. Earning GCIA demonstrates hands-on expertise in configuring intrusion detection systems and interpreting network traffic and log files to defend against real-world attacks.

Practice Free Questions

4Domains

15Objectives

121Practice pages

575Free questions

GCIA free practice questions

Choose any objective and open any question page — no sign-in required.

Concepts of TCP/IP and the Link Layer

42 questions · 9 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–42

IP Headers

42 questions · 9 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–42

IPv6

36 questions · 8 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–36

TCP

50 questions · 10 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45 46–50

UDP and ICMP

33 questions · 7 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–33

Network Forensics and Traffic Analysis

47 questions · 10 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45 46–47

SiLK and Other Traffic Analysis Tools

49 questions · 10 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45 46–49

Tcpdump Filters

20 questions · 4 pages

Questions 1–5 6–10 11–15 16–20

Wireshark Fundamentals

38 questions · 8 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–38

IDS Fundamentals and Network Architecture

38 questions · 8 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–38

Advanced IDS Concepts

26 questions · 6 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–26

Intrusion Detection System Rules

38 questions · 8 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–38

Packet Engineering

35 questions · 7 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35

Fragmentation

36 questions · 8 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–36

Application Protocols

45 questions · 9 pages

Questions 1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45

Want a smarter study session?Try adaptive questions aimed at your weak spots, the illustrated book, and readiness you can trust.

Continue Free Practice

Percentages reflect share of the current practice bank, not official exam weightings. Every page above is a live, crawlable practice page (15 objectives · 121 pages).

GIAC Certified Intrusion Analyst

GCIA free practice questions

Domain 1 · Network Fundamentals35% of practice bank · 5 objectives · 203 questions35%

Domain 2 · Traffic Analysis and Tools27% of practice bank · 4 objectives · 154 questions27%

Domain 3 · IDS Concepts and Architecture18% of practice bank · 3 objectives · 102 questions18%

Domain 4 · Packet Analysis and Engineering20% of practice bank · 3 objectives · 116 questions20%