Free GIAC GRID Exam Dumps Questions & Answers

Which type of network monitoring tool is most useful for identifying suspicious traffic patterns between devices in an ICS environment?

• A.  Database management tools
• B.  Word processing software
• C.  Antivirus programs
• D.  Network intrusion detection systems (NIDS)

How can behavioral analysis contribute to threat intelligence in ICS environments?

• A.  By reducing system costs
• B.  By identifying deviations from normal behavior, which may indicate the presence of unknown threats
• C.  By automating incident response
• D.  By improving hardware performance

Your team has deployed an active defense mechanism in an ICS environment, which has recently detected abnormal traffic patterns between a Human-Machine Interface (HMI) and a remote IP address.
How should you proceed with investigating and mitigating this issue?

• A.  Ignore the abnormal traffic, as it may resolve itself
• B.  Disable the HMI permanently
• C.  Review the traffic logs, investigate the remote IP address, apply network segmentation to isolate the HMI, and alert the security team
• D.  Increase the HMI's processing power

What is the primary purpose of sharing threat intelligence across different organizations in the ICS sector?

• A.  To monitor employee behavior
• B.  To decrease system performance
• C.  To reduce the number of devices in the network
• D.  To increase collaboration and improve the collective defense of critical infrastructure

Why is asset visibility particularly challenging in industrial control systems?

• A.  Because ICS environments often contain a mix of legacy systems, proprietary devices, and isolated networks that are difficult to monitor
• B.  Because of the frequent changes to network topology
• C.  Due to the high number of employees working in these environments
• D.  Because systems are usually offline