2024 Realistic ICS-SCADA Dumps Questions To Gain Brilliant Result
Start your ICS-SCADA Exam Questions Preparation with Updated 77 Questions
NEW QUESTION # 19
What is the extension of nmap scripts?
- A. .nsn
- B. .nsv
- C. .nse
- D. .ns
Answer: C
Explanation:
Nmap scripts, which are used to enhance the functionality of Nmap for performing network discovery, security auditing, and other tasks, have the extension .nse. This stands for Nmap Scripting Engine, which allows users to write scripts to automate a wide variety of networking tasks.
Reference:
Nmap Network Scanning by Gordon Lyon (also known as Fyodor Vaskovich), detailing the use and examples of Nmap scripts.
NEW QUESTION # 20
How many IPsec modes are there?
- A. Two
- B. Four
- C. Three
- D. None of these
Answer: A
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 # 21
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: D
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 # 22
Which of the ICS/SCADA generations is considered distributed?
- A. Third
- B. Knapp, J. Langill, "Industrial Network Security," Syngress, 2014.
- C. First
- D. Second
- E. Fourth
Answer: A
Explanation:
The third generation of ICS/SCADA systems is considered distributed. This generation features systems that are networked and interconnected, typically using a variety of standard communication protocols. This distribution allows for broader connectivity and integration with other systems, enhancing operational flexibility and efficiency but also introducing more vectors for potential cyber threats.
Reference:
Joseph Weiss, "Protecting Industrial Control Systems from Electronic Threats".
The third generation of ICS/SCADA systems is considered distributed. These systems emerged in the late 1990s and early 2000s and were designed to overcome the limitations of earlier generations by leveraging networked architectures.
Distributed Architecture: Third-generation systems distributed control functions across multiple interconnected devices and systems, providing greater scalability and flexibility.
Network Integration: These systems integrated more extensively with IT networks, allowing for remote monitoring and control.
Standard Protocols: Adoption of standard communication protocols (e.g., Ethernet, TCP/IP) facilitated interoperability and integration with other systems.
Enhanced Redundancy: Improved fault tolerance and redundancy were implemented to ensure system reliability.
Due to these features, the third generation is known as the distributed generation.
Reference
"SCADA Systems," SCADAHacker, SCADA Generations.
NEW QUESTION # 23
What is used in the Modbus protocol to tell the slave to read or write?
- A. Function code
- B. Unit ID
- C. None of these
- D. Slave command
Answer: A
Explanation:
In the Modbus protocol, the function code is used to tell the slave device what kind of action to perform, such as reading or writing data.
Modbus function codes specify the type of operation to be performed on the registers. For example, function code 03 is used to read holding registers, and function code 06 is used to write a single register.
Each function code is a single byte in size and is positioned at the start of the PDU (Protocol Data Unit) in the Modbus message structure, directly influencing how the slave interprets and executes the request.
Reference
"Modbus Application Protocol Specification V1.1b," Modbus Organization.
"The Modbus Protocol Explained," by Schneider Electric.
NEW QUESTION # 24
At what layer does a switch normally operate?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
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 # 25
How many main score areas are there in the CVSS?2
- A. 0
- B. 1
- C. 2
- D. None of these
Answer: C
Explanation:
The Common Vulnerability Scoring System (CVSS) is a framework for rating the severity of security vulnerabilities. CVSS provides three main score areas: Base, Temporal, and Environmental.
Base Score evaluates the intrinsic qualities of a vulnerability.
Temporal Score reflects the characteristics of a vulnerability that change over time.
Environmental Score considers the specific impact of the vulnerability on a particular organization, tailoring the Base and Temporal scores according to the importance of the affected IT asset.
Reference:
FIRST, "Common Vulnerability Scoring System v3.1: Specification Document".
NEW QUESTION # 26
Which of the following is NOT an exploit tool?
- A. Canvas
- B. Metasploit
- C. Nessus
- D. Core Impact
Answer: C
Explanation:
Among the options listed, Nessus is primarily a vulnerability assessment tool, not an exploit tool. It is used to scan systems, networks, and applications to identify vulnerabilities but does not exploit them. On the other hand, Canvas, Core Impact, and Metasploit are exploit tools designed to actually perform attacks (safely and legally) to demonstrate the impact of vulnerabilities.
Reference:
Tenable, Inc., "Nessus FAQs".
NEW QUESTION # 27
What is a vulnerability called that is released before a patch comes out?
- A. Zero day
- B. First
- C. Pre-release
- D. Initial
Answer: A
Explanation:
A vulnerability that is exploited before the vendor has issued a patch or even before the vulnerability is known to the vendor is referred to as a "zero-day" vulnerability. The term "zero-day" refers to the number of days the software vendor has had to address and patch the vulnerability since it was made public-zero, in this case.
Reference:
Symantec Security Response, "Zero Day Initiative".
NEW QUESTION # 28
Which of the following are valid TCP flags?
- A. IGP,ACK,SYN,PSH,URG
- B. None of these
- C. BGP,FIN,PSH,SYN,ACK
- D. FIN,PSH,URG,RST,SYN
Answer: D
Explanation:
TCP flags are used in the header of TCP segments to control the flow of data and to indicate the status of a connection. Valid TCP flags include:
FIN: Finish, used to terminate the connection.
PSH: Push, instructs the receiver to pass the data to the application immediately.
URG: Urgent, indicates that the data contained in the segment should be processed urgently.
RST: Reset, abruptly terminates the connection upon error or other conditions.
SYN: Synchronize, used during the initial handshake to establish a connection.
These flags are integral to managing the state and flow of TCP connections.
Reference:
Douglas E. Comer, "Internetworking with TCP/IP Vol.1: Principles, Protocols, and Architecture".
NEW QUESTION # 29
Which of the following are required functions of information management?
- A. Date enrichment
- B. Normalization
- 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 # 30
Which type of Intrusion Prevention System can monitor and validate encrypted data?
- A. Anomaly
- B. Memory
- C. Network
- D. Host
Answer: C
Explanation:
A Network Intrusion Prevention System (NIPS) is capable of monitoring and validating encrypted data if it is integrated with technologies that allow it to decrypt the traffic.
Typically, network IPS can be set up with SSL/TLS decryption capabilities to inspect encrypted data as it traverses the network. This allows the IPS to analyze the content of encrypted packets and apply security policies accordingly.
Monitoring encrypted traffic is critical in detecting hidden malware, unauthorized data exfiltration, and other security threats concealed within SSL/TLS encrypted sessions.
Reference
"Network Security Technologies and Solutions," by Yusuf Bhaiji, Cisco Press.
"Decrypting SSL/TLS Traffic with IPS," by Palo Alto Networks.
NEW QUESTION # 31
How many firewalls are there in the most common ICS/SCADA architecture?
- A. 0
- B. 1
- C. 2
- D. None of these
Answer: C
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 # 32
What form of attack uses a vector that infects a software package?
- A. Spam
- B. Watering Hole
- C. All of these
- D. Quicksand
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 # 33
Which of the following is considered the best way to counter packet monitoring for a switch?
- A. SPAN
- B. Duplication
- C. Tap
- D. Port mirror
Answer: D
Explanation:
Port mirroring (also known as SPAN - Switched Port Analyzer) is considered one of the best ways to counter packet monitoring on a switch. This technique involves copying traffic from one or more switch ports (or an entire VLAN) to another port where the monitoring device is connected. Port mirroring allows administrators to monitor network traffic in a non-intrusive way, as it does not affect network performance and is transparent to users and endpoints on the network.
Reference:
Cisco Systems, "Catalyst Switched Port Analyzer (SPAN) Configuration Example".
NEW QUESTION # 34
Which of the following components is not part of the Authentication Header (AH)?
- A. Authentication
- B. Confidentiality
- C. Replay
- D. Integrity
Answer: B
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 # 35
Which mode within IPsec provides secure connection between two endpoints but does NOT protect the sender and the receiver?
- A. Covered
- B. Protected
- C. Tunnel
- D. Transport
Answer: D
Explanation:
IPsec offers two modes of operation: Transport mode and Tunnel mode.
Transport mode in IPsec provides security for the payload (the message part) of each packet along the communication path between two endpoints.
In this mode, the IP header of the original packet is not encrypted; it secures only the payload, not protecting the headers. This means while the data is protected, information about the sender and receiver as contained in the IP header is not obscured.
Reference
"Security Architecture for IP," RFC 4301.
IPsec documentation, Internet Engineering Task Force (IETF).
NEW QUESTION # 36
Which component of the IT Security Model is the highest priority in ICS/SCADA Security?
- A. Authentication
- B. Availability
- C. Confidentiality
- D. Integrity
Answer: B
Explanation:
In ICS/SCADA systems, the highest priority typically is Availability, due to the critical nature of the services and infrastructures they support. These systems often control vital processes in industries like energy, water treatment, and manufacturing. Any downtime can lead to significant disruptions, safety hazards, or economic losses. Thus, ensuring that systems are operational and accessible is a primary security focus in the context of ICS/SCADA security.
Reference:
National Institute of Standards and Technology (NIST), "Guide to Industrial Control Systems (ICS) Security".
NEW QUESTION # 37
Which of the ICS/SCADA generations is considered networked?
- A. Third
- B. First
- C. Second
- D. Fourth
Answer: A
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 # 38
Which of the options in the netstat command show the routing table?
- A. r
- B. c
- C. a
- D. s
Answer: A
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 # 39
Which component of the IT Security Model is attacked with eavesdropping and interception?
- A. Authentication
- B. Confidentiality
- C. Integrity
- D. Availability
Answer: B
Explanation:
Eavesdropping and interception primarily attack the confidentiality component of the IT Security Model. Confidentiality is concerned with protecting information from being accessed by unauthorized parties. Eavesdropping involves listening to private communication or capturing data as it is transmitted over a network, thereby breaching the confidentiality of the information.
Reference:
William Stallings, "Cryptography and Network Security: Principles and Practice".
NEW QUESTION # 40
The vulnerability that led to the WannaCry ransomware infections affected which protocol?
- A. RPC
- B. SMB
- C. Samba
- D. None of these
Answer: B
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 # 41
......
Fortinet ICS-SCADA Exam Syllabus Topics:
| Topic | Details |
|---|---|
| Topic 1 |
|
| Topic 2 |
|
| Topic 3 |
|
| Topic 4 |
|
| Topic 5 |
|
| Topic 6 |
|
| Topic 7 |
|
Easy Success Fortinet ICS-SCADA Exam in First Try: https://www.latestcram.com/ICS-SCADA-exam-cram-questions.html
