01. In ICS environments, what is the primary advantage of using anomaly-based detection systems?
a) They improve system performance
b) They require no configuration or monitoring
c) They can detect unknown threats by identifying deviations from normal behavior
d) They are cheaper than signature-based detection systems
02. Which of the following best describes an indicator of compromise (IOC) in threat hunting?
a) An artifact observed on a network or device that indicates a potential breach
b) A method for increasing system performance
c) A hardware device used in ICS environments
d) A network diagram
03. Threat intelligence indicates that a known cyber espionage group has been targeting your ICS environment with sophisticated phishing campaigns. How should your organization respond to this intelligence?
a) Reduce employee work hours to minimize phishing attempts
b) Educate employees on phishing awareness, implement stricter email security protocols, and closely monitor for signs of suspicious email activity
c) Ignore the intelligence and continue regular operations
d) Increase system memory to prevent phishing attacks
04. You are responsible for implementing active defense mechanisms in a critical infrastructure ICS environment. After reviewing traffic logs, you identify repeated attempts to access an ICS network segment from an external source. How should you proceed with mitigating this threat?
a) Terminate all external connections to the ICS environment
b) Ignore the attempts and continue regular operations
c) Review firewall settings, block the IP addresses involved in the access attempts, and implement additional network segmentation to isolate critical systems
d) Increase system capacity to handle more traffic
05. An ICS environment has experienced a ransomware attack affecting several critical systems. What should be the first step in the incident response process?
a) Isolate the affected systems from the network to prevent further spread, and begin forensic analysis to identify the extent of the attack
b) Increase system processing speed
c) Restart all affected systems
d) Reboot the entire network
06. Why is asset visibility crucial in an ICS environment?
a) To track financial transactions
b) To monitor employee performance
c) To improve system power consumption
d) To ensure that all devices and systems are accounted for and monitored for security vulnerabilities
07. During a threat hunting exercise, you identify suspicious communication between a third-party vendor system and one of your ICS control servers. What actions should you take to investigate this further?
a) Ignore the communication as it is likely a legitimate interaction
b) Review the logs from both the vendor system and control server, contact the vendor to verify the legitimacy of the traffic, and temporarily disable communication until the issue is resolved
c) Reboot the ICS control server
d) Increase network traffic to monitor the communication
08. A manufacturing plant that relies on ICS systems for its production line receives an alert indicating that unauthorized access was attempted on one of its programmable logic controllers (PLCs). What should be the first steps in handling this situation using active defense principles?
a) Ignore the alert and continue production
b) Shut down the entire production line immediately
c) Review the system logs, investigate the unauthorized access attempt, isolate the PLC from the network, and enhance access controls to prevent further attempts
d) Reset all passwords for the entire ICS system without investigation
09. What is a common challenge in performing digital forensics in an ICS environment?
a) ICS systems often have specialized hardware and software that require unique forensic tools and expertise
b) ICS systems are designed for easy forensic analysis
c) ICS systems are rarely targeted by cyber attacks
d) ICS systems are compatible with standard IT forensics tools
10. How can centralized logging improve monitoring in ICS environments?
a) By automating backups
b) By reducing energy usage
c) By eliminating the need for security protocols
d) By combining logs from multiple devices into a single system for easier analysis and detection of anomalies
The purpose of this Sample Question Set is to provide you with information about the GIAC Response and Industrial Defense (GRID) exam. These sample questions will make you very familiar with both the type and the difficulty level of the questions on the GRID certification test. To get familiar with real exam environment, we suggest you try our Sample GIAC GRID 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 Response and Industrial Defense (GRID) certification exam.