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Fortinet ICS-SCADA Exam Syllabus Topics:
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NEW QUESTION # 45
In physical to logical asset protections, what threat can be directed against the network?
- A. Flood the switch
- B. Crack the password
- C. All of these
- D. Elevation of privileges
Answer: C
Explanation:
In the context of physical to logical asset protection in network security, several threats can be directed against the network, including:
Elevation of Privileges: Where unauthorized users gain higher-level permissions improperly.
Flood the Switch: Typically involves a DoS attack where the switch is overwhelmed with traffic, preventing normal operations.
Crack the Password: An attack aimed at gaining unauthorized access by breaking through password security. All these threats can potentially compromise the network's security and the safety of its physical and logical assets.
Reference:
CompTIA Security+ Guide to Network Security Fundamentals.
NEW QUESTION # 46
Which of the IEC 62443 security levels is identified by a hacktivist/terrorist target?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
IEC 62443 defines multiple security levels (SLs) tailored to address different types of threats and attackers in industrial control systems.
Security Level 4 (SL4) is designed to protect against sophisticated attacks by adversaries such as hacktivists or terrorists. SL4 involves threats that are targeted with specific intent against the organization, using advanced skills and means.
This level assumes that the adversary is capable of sustained and focused efforts with significant resources, including state-level actors or well-funded groups, aiming at causing widespread disruption or damage.
Reference
IEC 62443-3-3: System security requirements and security levels.
"Industrial Network Security: Securing Critical Infrastructure Networks for Smart Grid, SCADA, and Other Industrial Control Systems," by Eric Knapp.
NEW QUESTION # 47
What form of attack uses a vector that infects a software package?
- A. Quicksand
- B. Watering Hole
- C. All of these
- D. Spam
Answer: B
Explanation:
A "watering hole" attack is a security exploit in which the attacker seeks to compromise a specific group of end users by infecting websites that members of the group are known to visit.
The goal is to infect a website that members of a targeted community frequently use with malware. Once a user visits the compromised website, malware can be delivered to the user's system, exploiting vulnerabilities on their device.
This attack vector is used in scenarios where attackers want to breach secure environments indirectly by targeting less secure points in a network's ecosystem, such as third-party software used within the organization.
Reference
"Watering Hole Attacks: Detect, Disrupt, and Prevent," by Kaspersky Lab.
"Emerging Threats in Cybersecurity: Understanding Watering Hole Attacks," published in the Journal of Network Security.
NEW QUESTION # 48
A Security Association is a __________ way connection?
- A. One
- B. None of these
- C. Three
- D. Two
Answer: A
Explanation:
A Security Association (SA) in the context of IPsec is a one-way logical connection used for secure communication between two endpoints. IPsec requires two SAs to establish a secure, bidirectional communication channel-one for each direction (inbound and outbound). This arrangement ensures that each direction is independently secured, with its own set of security parameters.
Reference:
RFC 4301, "Security Architecture for the Internet Protocol".
NEW QUESTION # 49
With respect to the IEC 62443, how many steps are in the Defense in Depth process?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
IEC 62443 is a series of standards designed to secure Industrial Automation and Control Systems (IACS). It provides a framework for implementing cybersecurity measures in the context of industrial environments.
The Defense in Depth (DiD) approach outlined in IEC 62443 involves multiple layers of security measures to protect industrial networks. This method ensures that if one layer fails, others are in place to continue protection.
Specifically, the IEC 62443 framework describes six fundamental steps in setting up a Defense in Depth strategy, covering aspects from physical security to network segmentation and device hardening.
Reference
International Electrotechnical Commission, IEC 62443 Series.
"Understanding IEC 62443 for Industrial Cybersecurity," by ISA99 Committee.
The IEC 62443 standard outlines a comprehensive framework for securing industrial automation and control systems (IACS). The Defense in Depth concept within this standard includes six steps designed to ensure robust security.
Step 1: Identification and Authentication Control (IAC): Ensuring only authorized users and devices can access the system.
Step 2: Use Control (UC): Managing permissions and access controls to restrict actions users can perform.
Step 3: System Integrity (SI): Ensuring the system remains in a trustworthy state, protected from unauthorized changes.
Step 4: Data Confidentiality (DC): Protecting sensitive data from unauthorized access and disclosure.
Step 5: Restricted Data Flow (RDF): Controlling and monitoring data flows to prevent unauthorized data transmission.
Step 6: Timely Response to Events (TRE): Implementing mechanisms to detect, respond to, and recover from security incidents.
These steps collectively form the Defense in Depth strategy prescribed by IEC 62443.
Reference
"IEC 62443 - Industrial Automation and Control Systems Security," International Electrotechnical Commission, IEC 62443.
"Defense in Depth," Cybersecurity and Infrastructure Security Agency (CISA), Defense in Depth.
NEW QUESTION # 50
Which publication from NIST provides guidance on Industrial Control Systems?
- A. NIST SP 800-44
- B. NIST SP 800-90
- C. NIST SP 800-77
- D. NIST SP 800-82
Answer: D
Explanation:
NIST Special Publication 800-82, "Guide to Industrial Control Systems (ICS) Security," provides guidance on securing industrial control systems, including SCADA systems, distributed control systems (DCS), and other control system configurations such as programmable logic controllers (PLC). It offers practices and recommendations for protecting and securing ICS systems against disruptions, malicious activities, and other threats to their integrity and availability.
Reference:
National Institute of Standards and Technology (NIST), "Guide to Industrial Control Systems (ICS) Security".
NEW QUESTION # 51
Which of the following can be used to view entire copies of web sites?
- A. Google Cache
- B. Netcraft
- C. Bing offline
- D. Wayback machine
Answer: D
Explanation:
The Wayback Machine is an internet service provided by the Internet Archive that allows users to see archived versions of web pages across time, enabling them to browse past versions of a website as it appeared on specific dates.
It captures and stores snapshots of web pages, making it an invaluable tool for accessing the historical state of a website or recovering content that has since been changed or deleted.
Other options like Google Cache may also show snapshots of web pages, but the Wayback Machine is dedicated to this purpose and holds a vast archive of historical web data.
Reference
Internet Archive: https://archive.org
"Using the Wayback Machine," Internet Archive Help Center.
NEW QUESTION # 52
The NIST SP 800-53 defines how many management controls?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
NIST SP 800-53 is a publication that provides a catalog of security and privacy controls for federal information systems and organizations and promotes the development of secure and resilient federal information and information systems.
According to the NIST SP 800-53 Rev. 5, the framework defines a comprehensive set of controls, which are divided into different families. Among these families, there are specifically nine families categorized under management controls. These include categories such as risk assessment, security planning, program management, and others.
Reference
"NIST Special Publication 800-53 (Rev. 5) Security and Privacy Controls for Information Systems and Organizations." NIST website: https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-53r5.pdf
NEW QUESTION # 53
How many firewalls are there in the most common ICS/SCADA architecture?
- A. 0
- B. 1
- C. None of these
- D. 2
Answer: D
Explanation:
The most common ICS/SCADA architecture typically includes two firewalls. This dual firewall configuration often involves one firewall placed between the enterprise network and the ICS/SCADA network, and another between the ICS/SCADA network and the plant floor devices. This arrangement, known as a "demilitarized zone" (DMZ) between the two firewalls, adds an additional layer of security to help isolate and protect sensitive operational technology (OT) environments from threats originating from IT networks.
Reference:
National Institute of Standards and Technology (NIST), "Guide to Industrial Control Systems (ICS) Security".
NEW QUESTION # 54
Which of the following is a component of an IDS?
- A. Detect
- B. Respond
- C. All of these
- D. Monitor
Answer: C
Explanation:
An Intrusion Detection System (IDS) is designed to monitor network or system activities for malicious activities or policy violations and can perform several functions:
Monitor: Observing network traffic and system activities for unusual or suspicious behavior.
Detect: Identifying potential security breaches including both known threats and unusual activities that could indicate new threats.
Respond: Executing pre-defined actions to address detected threats, which can include alerts or triggering automatic countermeasures.
Reference:
Cisco Systems, "Intrusion Detection Systems".
NEW QUESTION # 55
What type of protocol is represented by the number 6?
- A. TCP
- B. IGRP
- C. ICMP
- D. IUDP
Answer: A
Explanation:
The protocol number 6 represents TCP (Transmission Control Protocol) in the Internet Protocol suite. TCP is a core protocol of the Internet Protocol suite and operates at the transport layer, providing reliable, ordered, and error-checked delivery of a stream of bytes between applications running on hosts communicating via an IP network.
Reference:
RFC 793, "Transmission Control Protocol," which specifies the detailed operation of TCP.
NEW QUESTION # 56
What is the size of the AH in bits with respect to width?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
The Authentication Header (AH) in the context of IPsec has a fixed header portion of 24 bits and a mutable part that can vary, but when considering the fixed structure of the AH itself, the width is typically considered to be 32 bits at its core structure for basic operations in providing integrity and authentication, without confidentiality.
Reference:
RFC 4302, "IP Authentication Header".
NEW QUESTION # 57
What does the SPI within IPsec identify?
- A. Decryption algorithm
- B. Key Exchange
- C. Security Association
- D. All of these
Answer: C
Explanation:
Within IPsec, the SPI (Security Parameter Index) is a critical component that uniquely identifies a Security Association (SA) for the IPsec session. The SPI is used in the IPsec headers to help the receiving party determine which SA has been agreed upon for processing the incoming packets. This identification is crucial for the proper operation and management of security policies applied to the encrypted data flows.
Reference:
RFC 4301, "Security Architecture for the Internet Protocol," which discusses the structure and use of the SPI in IPsec communications.
NEW QUESTION # 58
A protocol analyzer that produces raw output is which of the following?
- A. Wireshark
- B. tcpdump
- C. Commview
- D. Capsa
Answer: B
Explanation:
tcpdump is a powerful command-line packet analyzer used primarily in UNIX and UNIX-like operating systems; it allows the capture and display of TCP/IP and other packets being transmitted or received over a network to which the computer is attached.
Unlike graphical tools like Wireshark, tcpdump provides raw output of the packet captures directly to the terminal or a specified file, making it ideal for deep dive network analysis, especially in environments where a graphical user interface is unavailable.
tcpdump uses the libpcap library to capture packet data, which allows it to support a wide range of command-line options to filter and display packet information according to user needs.
Reference
"tcpdump manual page," by the Tcpdump Group.
"Practical Packet Analysis Using Wireshark to Solve Real-World Network Problems," by Chris Sanders, No Starch Press.
NEW QUESTION # 59
Which of the following are required functions of information management?
- A. Normalization
- B. Date enrichment
- C. All of these
- D. Correlation
Answer: C
Explanation:
Information management within the context of network security involves several critical functions that ensure data is correctly handled for security operations. These functions include:
Normalization: This process standardizes data formats from various sources to a common format, making it easier to analyze systematically.
Correlation: This function identifies relationships between disparate pieces of data, helping to identify patterns or potential security incidents.
Data enrichment: Adds context to the collected data, enhancing the information with additional details, such as threat intelligence.
All these functions are essential to effective information management in security systems, allowing for more accurate monitoring and faster response to potential threats.
Reference
"Data Enrichment and Correlation in SIEM Systems," Security Information Management Best Practices.
"Normalization Techniques for Security Data," Journal of Network Security.
NEW QUESTION # 60
What type of communication protocol does Modbus RTU use?
- A. Serial
- B. ICMP
- C. UDP
- D. SSTP
Answer: A
Explanation:
Modbus RTU (Remote Terminal Unit) is a communication protocol based on a master-slave architecture that uses serial communication. It is one of the earliest communication protocols developed for devices connected over serial lines. Modbus RTU packets are transmitted in a binary format over serial lines such as RS-485 or RS-232.
Reference:
Modbus Organization, "MODBUS over Serial Line Specification and Implementation Guide V1.02".
NEW QUESTION # 61
Which of the ICS/SCADA generations is considered monolithic?
- A. Fourth
- B. Third
- C. Second
- D. First
- E. S. Department of Homeland Security, "Recommended Practice: Improving Industrial Control System Cybersecurity with Defense-in-Depth Strategies".
Answer: D
Explanation:
The first generation of ICS/SCADA systems is considered monolithic, primarily characterized by standalone systems that had no external communications or connectivity with other systems. These systems were typically fully self-contained, with all components hard-wired together, and operations were managed without any networked interaction.
Reference:
NEW QUESTION # 62
Which mode within IPsec provides a secure connection tunnel between two endpoints AND protects the sender and the receiver?
- A. Transport
- B. Tunnel
- C. Covered
- D. Protected
Answer: B
Explanation:
IPsec (Internet Protocol Security) has two modes: Transport mode and Tunnel mode.
Tunnel mode is used to create a secure connection tunnel between two endpoints (e.g., two gateways, or a client and a gateway) and it encapsulates the entire IP packet.
This mode not only protects the payload but also the header information of the original IP packet, thereby providing a higher level of security compared to Transport mode, which only protects the payload.
Reference
Kent, S. and Seo, K., "Security Architecture for the Internet Protocol," RFC 4301, December 2005.
"IPsec Services," Microsoft TechNet.
NEW QUESTION # 63
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