ICS-SCADA Exam Brain Dumps - Study Notes and Theory [Oct-2024]
100% Guaranteed Results ICS-SCADA Unlimited 77 Questions
Fortinet ICS-SCADA Exam Syllabus Topics:
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NEW QUESTION # 12
Which of the monitor alerts is considered most dangerous?
- A. True Positive
- B. False Positive
- C. False Negative
- D. True Negative
Answer: C
Explanation:
In the context of monitoring and alerts within cybersecurity, the classification of alerts includes true positives, false positives, true negatives, and false negatives.
A false negative is considered the most dangerous type of alert because it occurs when an actual security threat is present but the monitoring system fails to detect and alert it. This allows malicious activities to occur undetected, potentially leading to significant damage or data loss.
The risk with false negatives is that they provide a false sense of security, assuming that systems are secure while in reality, they are compromised.
Reference
"Security and Network Monitoring Basics," Cisco Systems.
"Understanding Alert Classifications in Cybersecurity," Journal of Information Security.
NEW QUESTION # 13
In what default directory (fully qualified path) does nmap store scripts?
- A. /usr/share/scripts
- B. /ust/share/nmap/scripts
- C. /usr/share/nmap
- D. /opt
Answer: C
Explanation:
Nmap (Network Mapper) is a network scanning and security auditing tool. Scripts used by Nmap for performing different network discovery and security auditing tasks are stored in /usr/share/nmap/scripts. This directory contains a collection of scripts for NSE (Nmap Scripting Engine), which enables Nmap to perform additional networking tasks, often used for detecting vulnerabilities, misconfigurations, and security-related information about network services.
Reference:
Nmap documentation, "Nmap Scripting Engine (NSE)".
NEW QUESTION # 14
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 # 15
Which of the following is a weakness of a vulnerability scanner?
- A. Not designed to go through filters
- B. Detect known vulnerabilities
- C. Work best on a local network
- D. Maintains a signature database
Answer: A
Explanation:
One weakness of a vulnerability scanner is that it is not designed to go through filters or bypass security controls like firewalls or intrusion detection systems. Vulnerability scanners typically perform well in identifying known weaknesses within the perimeter of a network or system but might not effectively assess systems that are shielded by robust security measures, which can filter out the scanner's attempts to probe or attack.
Reference:
National Institute of Standards and Technology (NIST), "Technical Guide to Information Security Testing and Assessment".
NEW QUESTION # 16
Which of the ICS/SCADA generations is considered networked?
- A. Fourth
- B. Second
- C. First
- D. Third
Answer: D
Explanation:
Industrial Control Systems (ICS) have evolved through several generations, each characterized by different technological capabilities and integration levels.
The third generation of ICS/SCADA systems is considered networked. This generation incorporates more advanced digital and networking technologies, allowing for broader connectivity and communication across different systems and components within industrial environments.
Third-generation SCADA systems are often characterized by their use of standard communication protocols and networked solutions, improving interoperability and control but also increasing the attack surface for potential cyber threats.
Reference
"Evolution of Industrial Control Systems and Cybersecurity Implications," IEEE Transactions on Industry Applications.
"Network Security for Industrial Control Systems," by Department of Homeland Security.
NEW QUESTION # 17
At what layer does a switch normally operate?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
A network switch typically operates at Layer 2 of the OSI model, which is the Data Link layer. This layer is responsible for node-to-node data transfer-a function that involves handling data frames between physical devices on the same network or link. The switch uses MAC addresses to forward data to the appropriate destination within the network.
Reference:
Andrew S. Tanenbaum, "Computer Networks".
NEW QUESTION # 18
What does the SPI within IPsec identify?
- A. Key Exchange
- B. Security Association
- C. Decryption algorithm
- D. All of these
Answer: B
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 # 19
Which of the following can be used to view entire copies of web sites?
- A. Google Cache
- B. Wayback machine
- C. Bing offline
- D. Netcraft
Answer: B
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 # 20
Which of the following components is not part of the Authentication Header (AH)?
- A. Confidentiality
- B. Integrity
- C. Authentication
- D. Replay
Answer: A
Explanation:
The Authentication Header (AH) is a component of the IPsec protocol suite that provides authentication and integrity to the communications. AH ensures that the contents of the communications have not been altered in transit (integrity) and verifies the sending and receiving parties (authentication). However, AH does not provide confidentiality, which would involve encrypting the payload data. Confidentiality is provided by the Encapsulating Security Payload (ESP), another component of IPsec.
Reference:
RFC 4302, "IP Authentication Header".
NEW QUESTION # 21
Which of the following steps is used to reveal the IP addressing?
- A. Cover your tracks
- B. Enumeration
- C. Surveillance
- D. Footprinting
Answer: B
Explanation:
Enumeration is a step in the information-gathering phase of a penetration test or cyber attack where an attacker actively engages with the target to extract detailed information, including IP addressing.
Enumeration: During enumeration, the attacker interacts with network services to gather information such as user accounts, network shares, and IP addresses.
Techniques: Common techniques include using tools like Nmap, Netcat, and Nessus to scan for open ports, services, and to identify the IP addresses in use.
Purpose: The goal is to map the network's structure, find potential entry points, and understand the layout of the target environment.
Because enumeration involves discovering detailed information including IP addresses, it is the correct answer.
Reference
"Enumeration in Ethical Hacking," GeeksforGeeks, Enumeration.
"Network Enumeration," Wikipedia, Network Enumeration.
NEW QUESTION # 22
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 # 23
Which of the options in the netstat command show the routing table?
- A. s
- B. c
- C. r
- D. a
Answer: C
Explanation:
The netstat command is a versatile networking tool used for various network-related information-gathering tasks, including displaying all network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.
The specific option -r with the netstat command is used to display the routing table.
This information is critical for troubleshooting network issues and understanding how data is routed through a network, identifying possible points of failure or security vulnerabilities.
Reference
"Linux Network Administrator's Guide," by O'Reilly Media.
Man pages for netstat in UNIX/Linux distributions.
NEW QUESTION # 24
What is the maximum size in bytes of an ethernet packet?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
The maximum transmission unit (MTU) for Ethernet, which is the largest size of an Ethernet packet or frame that can be sent over the network, is typically 1500 bytes. This size does not include the Ethernet frame's preamble and start frame delimiter but does include all other headers and the payload. Ethernet's MTU of 1500 bytes is a standard for most Ethernet networks, especially those conforming to the IEEE 802.3 standard.
Reference:
IEEE 802.3-2012, "Standard for Ethernet".
NEW QUESTION # 25
Which component of the IT Security Model is attacked with modification?
- A. Confidentiality
- B. Authentication
- C. Integrity
- D. Availability
Answer: C
Explanation:
Modification attacks directly impact the integrity of data within the IT Security Model. Integrity ensures that information is accurate and unchanged from its original form unless altered by authorized means. An attack that involves modification manipulates data in unauthorized ways, thereby compromising its accuracy and reliability.
Reference:
Shon Harris, "CISSP Certification: All-in-One Exam Guide".
NEW QUESTION # 26
In physical to logical asset protections, what threat can be directed against the network?
- A. Crack the password
- B. Flood the switch
- 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 # 27
Which component of the IT Security Model is attacked with interruption?
- A. Integrity
- B. Confidentiality
- C. Availability
- D. Authentication
Answer: C
Explanation:
The IT Security Model commonly refers to the CIA Triad, which stands for Confidentiality, Integrity, and Availability.
An attack on "Availability" is aimed at disrupting the normal functioning and access to data or resources in a network. This type of attack can include actions such as DDoS (Distributed Denial of Service), where overwhelming traffic is sent to a system to make it unresponsive.
The main goal of attacks on availability is to prevent legitimate users from accessing systems or information, which can have significant implications for business operations and security.
Reference
Understanding the CIA Triad in Cybersecurity: https://www.cyber.gov.au/acsc/view-all-content/publications/cia-triad Denial of Service - What it is and how to prevent it: https://www.us-cert.gov/ncas/tips/ST04-015
NEW QUESTION # 28
How many firewalls are there in the most common ICS/SCADA architecture?
- A. 0
- B. 1
- C. 2
- D. None of these
Answer: B
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 # 29
What type of communication protocol does Modbus RTU use?
- A. UDP
- B. SSTP
- C. Serial
- D. ICMP
Answer: C
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 # 30
How many IPsec rules are there in Microsoft Firewall configuration?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
In the configuration of Microsoft Windows Firewall with Advanced Security, you can define IPsec rules as part of your security policy. Typically, these rules can be organized into four main categories: Allow connection, Block connection, Allow if secure (which can specify encryption or authentication requirements), and Custom. While the interface and features can vary slightly between Windows versions, four fundamental types of rules regarding how traffic is handled are commonly supported.
Reference:
Microsoft documentation, "Windows Firewall with Advanced Security".
NEW QUESTION # 31
Which of the registrars contains the information for the domain owners in Europe?
- A. ARIN
- B. RIPENCC
- C. LACNIC
- D. AFRINIC
Answer: B
Explanation:
RIPENCC (Reseaux IP Europeens Network Coordination Centre) is one of the five Regional Internet Registries (RIRs) that allocate IP addresses and manage related resources within a specific region.
Specifically, RIPENCC covers Europe, the Middle East, and parts of Central Asia.
For domain owners, while the top-level domain (TLD) registrars handle domain registration, the information about IP allocations and related network infrastructure information in Europe is managed by RIPENCC.
Reference
RIPE Network Coordination Centre: https://www.ripe.net
RIPE Documentation and Information: https://www.ripe.net/manage-ips-and-asns
NEW QUESTION # 32
The vulnerability that led to the WannaCry ransomware infections affected which protocol?
- A. SMB
- B. Samba
- C. RPC
- D. None of these
Answer: A
Explanation:
WannaCry is a ransomware attack that spread rapidly across multiple computer networks in May 2017.
The vulnerability exploited by the WannaCry ransomware was in the Microsoft Windows implementation of the Server Message Block (SMB) protocol.
Specifically, the exploit, known as EternalBlue, targeted a flaw in the SMBv1 protocol. This flaw allowed the ransomware to spread within corporate networks without any user interaction, making it one of the fastest-spreading and most harmful cyberattacks at the time.
Reference
Microsoft Security Bulletin MS17-010 - Critical: https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2017/ms17-010 National Vulnerability Database, CVE-2017-0144: https://nvd.nist.gov/vuln/detail/CVE-2017-0144
NEW QUESTION # 33
How many IPsec modes are there?
- A. Four
- B. Three
- C. Two
- D. None of these
Answer: C
Explanation:
IPsec (Internet Protocol Security) primarily operates in two modes: Transport mode and Tunnel mode.
Transport mode: Encrypts only the payload of each packet, leaving the header untouched. This mode is typically used for end-to-end communication between two systems.
Tunnel mode: Encrypts both the payload and the header of each IP packet, which is then encapsulated into a new IP packet with a new header. Tunnel mode is often used for network-to-network communications (e.g., between two gateways) or between a remote client and a gateway.
Reference
"Security Architecture for the Internet Protocol," RFC 4301.
"IPsec Modes of Operation," by Internet Engineering Task Force (IETF).
NEW QUESTION # 34
What form of attack uses a vector that infects a software package?
- A. Watering Hole
- B. Quicksand
- C. Spam
- D. All of these
Answer: A
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 # 35
Which of the CVSS metrics refer to the exploit quotient of the vulnerability?
- A. IBase
- B. Environmental
- C. Temporal
- D. All of these
Answer: C
Explanation:
The Common Vulnerability Scoring System (CVSS) uses several metrics to assess the severity of vulnerabilities. Among them, the Temporal metric group specifically reflects the exploit quotient of a vulnerability.
Temporal metrics consider factors that change over time after a vulnerability is initially assessed. These include:
Exploit Code Maturity: This assesses the likelihood of the vulnerability being exploited based on the availability and maturity of exploit code.
Remediation Level: The level of remediation available for the vulnerability, which influences the ease of mitigation.
Report Confidence: This metric measures the reliability of the reports about the vulnerability.
These temporal factors directly affect the exploitability and potential threat posed by a vulnerability, adjusting the base score to provide a more current view of the risk.
Reference
Common Vulnerability Scoring System v3.1: User Guide.
"Understanding CVSS," by FIRST (Forum of Incident Response and Security Teams).
NEW QUESTION # 36
Which of the ICS/SCADA generations is considered monolithic?
- A. Fourth
- B. Second
- C. First
- D. Third
- E. S. Department of Homeland Security, "Recommended Practice: Improving Industrial Control System Cybersecurity with Defense-in-Depth Strategies".
Answer: C
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 # 37
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