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| Section | Objectives |
|---|---|
| Topic 1: ICS Governance, Policy, and Compliance | - Standards and Compliance
|
| Topic 2: ICS Incident Response and Recovery | - Detection and Analysis
|
| Topic 3: ICS Threats, Vulnerabilities, and Risk Management | - Threat Landscape and Threat Modeling
|
| Topic 4: ICS Security Architecture and Defense | - Defense-in-Depth Strategies
|
| Topic 5: ICS Components, Architecture, and Protocols | - Purdue Reference Architecture
|
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NEW QUESTION # 39
For application-aware firewalls filtering traffic between trust zones, which of the following policies should be applied to a packet that doesn't match an existing rule?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In the context ofIndustrial Control Systems (ICS)andOT network security, the principle of least privilege and explicit access control is fundamental for protecting critical infrastructure assets. According to the GICSP framework, when usingapplication-aware firewallsbetween different trust zones (e.g., corporate network to OT network), any traffic that doesnot explicitly match a defined ruleshould be blocked by default. This is referred to as the"default deny" policy.
* Default denymeans that unless traffic is explicitly allowed by firewall rules, it should be denied. This ensures that no unknown or unauthorized packets traverse trust boundaries, reducing the attack surface significantly.
* Thedefault alertoption (A) is useful for monitoring but does not prevent unauthorized access, so it's insufficient as a security control.
* Application deny list(C) andapplication allow list(D) refer to sets of permitted or denied applications, but the firewall still needs an overarching policy to handle unmatched packets; that policy must be deny for safety.
This approach is emphasized in theICS Security Architecture and Network Segmentationdomain of GICSP, reinforcing that all unknown or unexpected network traffic should be blocked unless explicitly permitted by policy. This aligns withNIST SP 800-82 Rev 2guidance on ICS security, which GICSP incorporates.
Reference:
Global Industrial Cyber Security Professional (GICSP) Official Study Guide, Domain: ICS Security Architecture & Design NIST SP 800-82 Rev 2: Guide to Industrial Control Systems (ICS) Security, Section 5.5 (Network Architecture) GICSP Training Materials, Firewall & Network Segmentation Best Practices Module
NEW QUESTION # 40
An administrator wants to script the deployment of a security policy, over the network, to a group of workstations not managed by Active Directory. What tool could be used to accomplish this task?
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In environments where workstations arenot managed by Active Directory (AD), deploying security policies in an automated and scripted manner requires command-line tools that can export, configure, and apply security templates locally or remotely. Among the listed options:
* secedit.exeis a command-line utility included in Windows that allows administrators toexport, import, and apply security templateson local or remote systems without needing Active Directory. This makes it ideal for scripted deployment of security configurations over the network in environments without centralized management.
* secpol.mscis a graphical snap-in for the Local Security Policy editor, intended for manual configuration on a per-machine basis anddoes not support scripted deployment or remote application.
* gpedit.mscis the Group Policy Editor snap-in, used primarily for managing local or domain Group Policies interactively and is reliant on the Group Policy infrastructure. It isnot effective for scripted deployment in non-AD environments.
Therefore,secedit.exeprovides the capability to import and apply security templates via command line and scripts, making it the preferred tool for automated security policy deployment across workstations not managed by Active Directory.
This is consistent with GICSP's emphasis onsecure configuration management and automationwithin ICS environments, where centralized domain services may not always be available, and robust tools for local policy enforcement are essential.
Reference:
Global Industrial Cyber Security Professional (GICSP) Official Study Guide, Domain: ICS Security Operations & Incident Response - Configuration Management Microsoft Docs: Secedit.exe Security Configuration Command-Line Tool GICSP Training Modules on ICS Configuration Management and Patch Deployment
NEW QUESTION # 41
Which of the following is a common method used to harden Unix-based endpoints in ICS environments?
Response:
Answer: A
NEW QUESTION # 42
In ICS architecture, what is the primary function of a Historian system?
Response:
Answer: B
NEW QUESTION # 43
The head of an IT department sent a directive stating that all company communication must use TLS in order to prevent unauthorized disclosure of information. Which part of the C-l-A model is the head of IT concerned with?
Answer: A
Explanation:
The use of TLS (Transport Layer Security) is intended to encrypt data in transit, thereby preventing unauthorized interception and disclosure.
This is primarily a concern with Confidentiality (D), ensuring information is only accessible to authorized parties.
Identity (A) and Authorization (C) involve user verification and access control but are not the main purpose of TLS.
Availability (B) concerns system uptime.
Integrity (D) ensures data is not altered but encryption mainly addresses confidentiality.
GICSP aligns TLS usage with protecting data confidentiality in ICS communications.
Reference:
GICSP Official Study Guide, Domain: ICS Security Principles
NIST SP 800-52 Rev 2 (Guidelines for TLS Use)
GICSP Training on Encryption and Data Protection
NEW QUESTION # 44
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