GIAC Response and Industrial Defense (GRID) (GRID) Free Practice Test

Question 1

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. 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

B. Ignore the communication as it is likely a legitimate interaction

C. Increase network traffic to monitor the communication

D. Reboot the ICS control server

Correct Answer: A

Question 2

What is the primary advantage of using threat intelligence during threat hunting in ICS environments?

A. It reduces system maintenance

B. It automatically fixes all security vulnerabilities

C. It helps hunters focus their efforts on relevant threats by providing up-to-date information on attack trends and tactics

D. It improves network bandwidth

Correct Answer: C

Question 3

Which of the following best describes tactical threat intelligence in the context of ICS security?

A. Guidelines for increasing system performance

B. Information about daily operational tasks

C. Detailed information about the tactics, techniques, and procedures (TTPs) used by attackers

D. Strategies for increasing employee engagement

Correct Answer: C

Question 4

Why is it critical to perform incident response in ICS environments without disrupting critical processes?

A. To increase system latency

B. To ensure the safety and reliability of critical infrastructure

C. To reduce energy costs

D. To delay system upgrades

Correct Answer: B

Question 5

What is one of the key components of operational threat intelligence in ICS environments?

A. Real-time information about ongoing cyberattacks that helps improve incident response efforts

B. Network bandwidth management

C. Details on employee work schedules

D. Data about financial performance

Correct Answer: A

Question 6

Why is it critical to develop a baseline of normal behavior before conducting threat hunting in an ICS environment?

A. To identify deviations from normal behavior that could indicate potential threats

B. To reduce energy consumption

C. To disable unnecessary systems

D. To eliminate the need for monitoring

Correct Answer: A

Question 7

What is a common challenge when implementing continuous monitoring in ICS environments?

A. The need to maintain system uptime without disruptions

B. High bandwidth requirements

C. Lack of network devices

D. Difficulty in updating software

Correct Answer: A

Question 8

How can threat intelligence help prioritize security efforts in ICS environments?

A. By reducing system storage

B. By increasing the frequency of backups

C. By identifying the most critical threats and focusing resources on addressing them

D. By minimizing employee interactions

Correct Answer: C

Question 9

What type of detection tool can be used to analyze communications between devices on an ICS network to detect potential security breaches?

A. Word processing software

B. Network traffic analyzers

C. Video surveillance

D. Digital forensics tools

Correct Answer: B

Question 10

What is the primary objective of incident response in an ICS environment?

A. To monitor billing usage

B. To mitigate the impact of an incident and restore normal operations as quickly as possible

C. To reduce system performance

D. To perform system backups

Correct Answer: B

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GIAC Response and Industrial Defense (GRID) (GRID) Free Practice Test