GIAC GCIA Certification Sample Questions

GCIA Dumps, GCIA PDF, GCIA VCE, GIAC Intrusion Analyst VCE, GIAC GCIA PDFThe purpose of this Sample Question Set is to provide you with information about the GIAC Intrusion Analyst (GCIA) exam. These sample questions will make you very familiar with both the type and the difficulty level of the questions on the GCIA certification test. To get familiar with real exam environment, we suggest you try our Sample GIAC GCIA Certification Practice Exam. This sample practice exam gives you the feeling of reality and is a clue to the questions asked in the actual GIAC Certified Intrusion Analyst (GCIA) certification exam.

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GIAC GCIA Sample Questions:

01. Which challenge most affects the correlation of alerts when multiple IDS sensors are deployed across different network segments?
a) Lack of synchronized time across sensors
b) Excessive use of TCP resets by IDS
c) Use of stateful firewalls in the same segments
d) Overlapping signature rule IDs
 
02. When analyzing DNS traffic for signs of data exfiltration, which anomaly is most suspicious?
a) Large volume of NXDOMAIN responses
b) Short TTL values in responses
c) Queries with unusually long subdomain strings
d) Responses containing multiple A records
 
03. During a packet capture, you notice fragments of an ICMP echo request. Which of the following indicates an attack based on packet fragmentation?
a) A fragmented packet that spans several time windows
b) Repeated fragment offsets in sequential packets
c) Non-overlapping fragments of unusual sizes
d) A fragmented packet from a known internal address
 
04. Which of the following techniques is most effective in reducing IDS false positives in an enterprise environment where legitimate but unusual traffic patterns frequently occur?
a) Deploying multiple IDS sensors with redundant rule sets
b) Disabling anomaly-based detection engines
c) Increasing the severity threshold for all alerts
d) Tuning IDS signatures to reflect the organization’s baseline traffic
 
05. What is the primary function of the TCP three-way handshake?
a) Encrypt packets
b) Establish connection parameters
c) Assign MAC addresses
d) Perform route discovery
 
06. When creating IDS rules, which two practices improve detection accuracy?
(Choose two)
a) Including both TCP flags and content patterns
b) Using only destination IP addresses in rules
c) Creating rules with overly broad regex patterns
d) Testing rules against realistic traffic captures
 
07. What are the most common techniques used for analyzing application layer protocols in IDS?
(Select two)
a) Protocol signature-based analysis
b) Payload pattern matching
c) Timing analysis of session connections
d) DNS query validation
 
08. At which OSI layer does ARP operate?
a) Transport
b) Application
c) Data Link
d) Network
 
09. Which tool would you use to craft a custom packet to send to a specific IP address in order to perform a penetration test?
a) Wireshark
b) Scapy
c) Nmap
d) Netcat
 
10. What anomaly in the source IP address field of an IP header is an indication of spoofing?
a) Private IP in external-facing packet
b) TTL = 1
c) Options field set to zero
d) Fragment offset equal to 0

Answers:

Question: 01
Answer: a		 Question: 02
Answer: c		 Question: 03
Answer: b		 Question: 04
Answer: d		 Question: 05
Answer: b
Question: 06
Answer: a, d		 Question: 07
Answer: a, b		 Question: 08
Answer: c		 Question: 09
Answer: b		 Question: 10
Answer: a

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