Free practice test
GCIAFree GIAC Certified Intrusion Analyst (GCIA) practice test
10 original GCIA questions, playable right now. No account, no card, no email gate. Every answer opens the full explanation: the concept, why the right option is right, and why each wrong option is wrong, cited to the authoritative documentation behind it.
Sample question 1 of 10
An analyst on Wireshark 4 writes ip.addr != 10.0.0.5 and is surprised it drops packets that also involve other hosts. What behavior changed in version 3.6?
Sample question 2 of 10
An analyst's IDS flags an unauthenticated FTP session that issues commands allowed only after login. Which detection method is this?
Sample question 3 of 10
A firewall must forward a large datagram whose DF flag is set, but the next link's MTU is too small. What does setting the Don't Fragment flag signify?
Sample question 4 of 10
A developer sizes a buffer to hold a full IPv6 address, knowing IPv4 uses 32 bits. How many bits wide is an IPv6 address?
Sample question 5 of 10
An analyst captures a UDP datagram carrying an all-zero Checksum field. What does that value indicate about the sender?
Sample question 6 of 10
A technician configures a packet sniffer on a monitoring host so it captures traffic not addressed to that host. Which NIC setting makes this possible?
Sample question 7 of 10
A technician prefers writing eq and and in Wireshark filters while a teammate uses == and &&. Both edit one filter string. What does the guide say about mixing them?
Sample question 8 of 10
An analyst notes one IDS profile stays fixed until regenerated while another updates continuously. Which pair of terms names them?
Sample question 9 of 10
Two hosts open a TCP connection. Which control flag marks the segments that establish it across three messages?
Sample question 10 of 10
An engineer migrating a subnet looks for the IPv6 equivalent of an IPv4 broadcast address to reach all hosts on a link. What does IPv6 offer in place of it?
Full GCIA question bank coming
We’re writing the complete bank from the official objectives right now. Leave your email and we’ll tell you when it ships, nothing else, ever.
What this test covers
These 10 questions are drawn across the published exam blueprint rather than from one chapter: this set touches Traffic Analysis Tools, Intrusion Detection Systems, Concepts of TCP/IP and the Link Layer, IP Headers, Fragmentation, and IPv6, UDP, ICMP, and Application Protocols, Network Forensics and Traffic Analysis. Every question is original, written from the official objectives, and verified against a cited vendor page before it serves. None are recalled exam content, which is why the explanations can cite their sources.
A 10-question sample tells you where you stand, not whether you are ready. The full experience is numbered practice exams: 106 questions apportioned to the official domain weightings, sat under the real 240-minute clock and scored against the published cut score.
Other free GIAC practice tests
Keep reading
- GCIA practice questions
Free sample questions with the full explanation on every answer.
- GCIA exam format
How many questions, how long, what the items look like, and how long it stays valid.
- GCIA passing score
The exact cut score, what kind of number it is, and the retake terms.
- How hard is GCIA?
An honest difficulty read from the format, the clock and the weights.