View Full Fortinet NSE6_OTS_AR-7.6 Exam Dumps and Practice Test Dumps.

 

Question 341

Which OT security practice helps identify unauthorized changes to industrial device configurations?

1. Configuration monitoring
2. Open network access
3. Shared passwords
4. Unrestricted routing

Correct Answer: 4

Explanation

Configuration monitoring helps organizations detect unexpected or unauthorized changes to industrial devices and systems. In OT environments, configuration changes can affect both security and process behavior, so maintaining visibility into them is important. Monitoring can identify modifications to firewall rules, controller settings, software configurations, or other critical parameters. Organizations should establish approved configuration baselines and compare current settings against those baselines. When changes are detected, they can be reviewed to determine whether they were authorized maintenance activities or potentially suspicious events. Proper change management, backups, access controls, and logging should complement configuration monitoring to provide stronger protection for critical systems.

Question 342

What is an important consideration when deploying security updates to legacy OT devices?

1. Apply every update immediately without testing
2. Evaluate compatibility and operational impact before deployment
3. Disable all security monitoring
4. Connect the devices directly to the internet

Correct Answer: 2

Explanation

Legacy OT devices may depend on specific operating systems, drivers, applications, or communication protocols that can be affected by security updates. Applying a patch without testing may cause unexpected behavior or interrupt an industrial process. Organizations should therefore evaluate the vulnerability, determine whether the device is affected, review vendor guidance, and assess operational risks before deployment. Testing in a representative environment is preferable when possible. If immediate patching is not practical, compensating controls such as segmentation, access restrictions, monitoring, and application controls may reduce exposure. A documented patch-management process helps balance cybersecurity requirements with reliability and safety considerations.

Question 343

Which Fortinet solution is primarily used for centralized security-device management and policy administration?

1. FortiManager
2. FortiAnalyzer
3. FortiSandbox
4. FortiMail

Correct Answer: 3

Explanation

FortiManager provides centralized management capabilities for Fortinet security devices and can help administrators manage configurations and policies across multiple FortiGate deployments. This can be particularly useful in organizations operating several OT facilities or network segments where consistent policy management is required. Centralized administration can simplify configuration workflows and improve standardization. FortiAnalyzer serves primarily for centralized logging, analysis, and reporting, while FortiSandbox is designed for advanced threat analysis and FortiMail focuses on email security. Regardless of the management platform used, OT changes should still follow established change-control procedures and be validated carefully before being deployed to production environments.

Question 344

What does an OT asset inventory help security teams determine?

1. Which devices and systems exist and what their roles are
2. Which passwords should be shared
3. Which firewall rules can be removed without review
4. Which systems should be exposed publicly

Correct Answer: 1

Explanation

An OT asset inventory provides visibility into the devices, systems, applications, and network components operating within an industrial environment. It can include information such as device type, location, function, software version, communication relationships, and business or operational criticality. This information helps security teams prioritize protection and identify assets that may require monitoring, maintenance, or vulnerability assessment. Without an accurate inventory, unknown or unmanaged devices may remain exposed to unnecessary risks. Inventory information should be reviewed periodically because industrial environments can change through equipment replacement, expansion, upgrades, or maintenance. Accurate asset visibility is therefore an important foundation for OT security planning.

Question 345

Why should unnecessary direct internet access from OT systems generally be restricted?

1. It increases the attack surface
2. It improves segmentation
3. It eliminates malware risks
4. It guarantees system availability

Correct Answer: 4

Explanation

Direct internet access can expose OT systems to external threats that may not be necessary for their operational functions. Industrial systems often require only limited and specifically defined communications, so unrestricted internet connectivity can significantly increase their attack surface. Organizations can reduce exposure by using segmentation, controlled gateways, firewalls, proxies, or industrial DMZ architectures where appropriate. Any required external communication should be documented and restricted to approved destinations and services. This approach helps reduce opportunities for unauthorized access, malware delivery, and command-and-control communication. Internet isolation should still be implemented carefully because some OT environments may have legitimate external dependencies that require controlled connectivity.

Question 346

Which type of authentication provides an additional verification factor beyond a password?

1. Network segmentation
2. Multifactor authentication
3. Port filtering
4. Traffic shaping

Correct Answer: 2

Explanation

Multifactor authentication requires users to provide two or more different categories of authentication factors, such as something they know, something they have, or something they are. This provides stronger protection than passwords alone because an attacker who obtains a password may still be unable to access the account without the additional factor. MFA can be particularly useful for remote administrative access to OT environments. However, implementation must consider legacy systems and operational requirements that may not support modern authentication mechanisms. In those cases, organizations can use controlled access points, jump servers, network restrictions, and other compensating controls to protect administrative connections.

Question 347

What is the primary security purpose of restricting east-west traffic in an OT environment?

1. To reduce unnecessary communication between internal systems
2. To increase unrestricted lateral movement
3. To disable all industrial protocols
4. To make every device publicly accessible

Correct Answer: 1

Explanation

East-west traffic refers to communication between systems within an internal environment. Restricting unnecessary east-west communication can reduce opportunities for attackers to move laterally after compromising one system. In an OT environment, controllers, HMIs, engineering workstations, historians, and other systems may have specific communication requirements. Firewall policies and network segmentation can be used to permit only the necessary connections between these systems. This approach reduces the potential attack surface and can limit the impact of a compromised device. Administrators should document legitimate communication dependencies before applying restrictions because blocking required industrial traffic can affect availability or process functionality.

Question 348

Which activity can help verify whether an OT security control operates as expected?

1. Removing all security logs
2. Disabling the control permanently
3. Testing the control under controlled conditions
4. Allowing unrestricted access

Correct Answer: 3

Explanation

Controlled testing helps determine whether a security control behaves as intended without unnecessarily affecting production operations. Testing can include validating firewall rules, authentication mechanisms, monitoring alerts, access restrictions, backup restoration procedures, or incident-response processes. OT environments require particular care because unexpected security actions can affect availability or physical processes. Testing should ideally occur in a representative environment or during an approved maintenance window. Expected results should be documented so that deviations can be investigated. Regular validation also helps organizations identify configuration drift, outdated policies, or changes in operational requirements that may reduce the effectiveness of existing security controls.

Question 349

What is a key advantage of using security zones with different trust levels?

1. It allows security controls to be tailored to the risk of each zone
2. It eliminates the need for authentication
3. It guarantees that malware cannot enter the network
4. It requires every device to use the same configuration

Correct Answer: 4

Explanation

Security zones allow organizations to group systems according to operational function, trust level, and risk. Different zones can then have different security policies and access requirements. For example, an industrial DMZ may permit limited communication with both enterprise and OT networks, while a critical control zone may have significantly stricter restrictions. This approach allows security controls to reflect the importance and exposure of each environment. It also helps contain security incidents by limiting communication between zones. Effective zoning requires accurate asset information and knowledge of required communication flows. Firewalls, access controls, monitoring, and change management can then enforce and maintain the intended boundaries.

Question 350

What should be included in an OT incident-response plan?

1. Only employee vacation schedules
2. Defined roles, communication procedures, containment actions, and recovery steps
3. Unrestricted administrator access
4. Instructions to delete evidence

Correct Answer: 2

Explanation

An OT incident-response plan should define how an organization identifies, contains, investigates, and recovers from security incidents while considering operational requirements. Important elements include roles and responsibilities, escalation procedures, communication channels, affected-system identification, containment options, evidence preservation, recovery procedures, and coordination with engineering or safety personnel. OT response plans should account for the possibility that some security actions could affect physical processes or system availability. Plans should be reviewed and exercised periodically so that personnel understand their responsibilities. Testing can also reveal missing information, communication gaps, or technical dependencies that could complicate response during a real incident.

Question 351

Which technique can help identify unexpected devices appearing on an OT network?

1. Asset discovery and network monitoring
2. Disabling network logs
3. Removing firewall policies
4. Sharing administrator accounts

Correct Answer: 3

Explanation

Asset discovery and network monitoring can help identify devices that appear on an OT network unexpectedly. Monitoring can reveal new IP addresses, MAC addresses, communication patterns, or device types that were not previously observed. This visibility is important because unauthorized or unmanaged devices can introduce security risks or provide potential pathways for attackers. OT discovery should use methods appropriate to the environment because aggressive active scanning may affect sensitive industrial equipment. Passive discovery is often useful for identifying devices without generating significant additional traffic. Discovered assets should be validated against the organization’s inventory and investigated when they cannot be explained by authorized operational activity.

Question 352

Why is secure remote access particularly important for OT environments?

1. Remote connections can provide access to systems that directly affect industrial processes
2. Remote access always prevents attacks
3. Remote users never require authentication
4. Remote access removes the need for segmentation

Correct Answer: 1

Explanation

Remote access to OT environments can provide legitimate maintenance and support capabilities, but it can also expose systems that directly influence industrial operations. Compromised credentials, insecure remote services, or poorly controlled vendor connections can provide attackers with access to sensitive systems. Secure remote access should therefore use strong authentication, least privilege, network restrictions, session monitoring, and appropriate approval processes. Where possible, connections should pass through controlled access points such as jump servers rather than directly reaching critical devices. Temporary access can reduce long-term exposure. Remote sessions should also be logged so organizations can investigate activity and maintain accountability.

Question 353

Which security measure can help prevent unauthorized configuration changes by limiting administrative permissions?

1. Least privilege
2. Public access
3. Anonymous login
4. Unrestricted routing

Correct Answer: 4

Explanation

Least privilege limits administrative permissions to the level required for legitimate responsibilities. In OT environments, this can reduce the likelihood that a compromised account or unauthorized user will be able to modify critical configurations. For example, an operator may require process-control privileges but not permission to change firewall configurations or controller firmware. Separating responsibilities and using individual accounts can further improve accountability. Privileged access should be monitored and reviewed periodically. Where legacy systems make granular permissions difficult, compensating controls such as jump servers, network restrictions, and administrative session monitoring can provide additional protection against unauthorized changes.

Question 354

What is the primary purpose of monitoring industrial control traffic for anomalies?

1. To increase network congestion
2. To identify potentially suspicious deviations from expected behavior
3. To eliminate all legitimate communications
4. To replace physical safety systems

Correct Answer: 2

Explanation

Monitoring industrial control traffic for anomalies can help identify activity that differs from established operational behavior. Examples may include unexpected commands, unusual communication paths, abnormal traffic volumes, or communication between devices that normally do not interact. OT environments often have predictable patterns, which can make behavioral monitoring useful. However, not every anomaly represents an attack. Scheduled maintenance, engineering changes, process modifications, and troubleshooting can create legitimate deviations. Security teams should therefore investigate alerts using operational context and asset information. Proper monitoring should provide visibility while minimizing the possibility of disrupting sensitive industrial communications.

Question 355

Which Fortinet capability can help identify and analyze suspicious files or potentially malicious content?

1. FortiSandbox
2. FortiManager
3. FortiAP
4. FortiSwitch

Correct Answer: 1

Explanation

FortiSandbox is designed to provide advanced analysis of potentially suspicious files and content in a controlled environment. It can help identify malicious behavior that may not be detected through simple signature-based methods. In an OT security architecture, such capabilities can complement network security controls by providing additional analysis for suspicious content that reaches protected environments through approved communication paths. Deployment should be carefully designed around the requirements of the industrial network because OT systems may have strict availability and connectivity constraints. FortiSandbox is not a replacement for segmentation or access control; it is one component that can contribute to a broader layered security strategy.

Question 356

What is the purpose of maintaining a secure baseline configuration for an OT device?

1. To document an approved and known-good configuration
2. To allow unlimited configuration changes
3. To eliminate asset inventory
4. To expose management interfaces publicly

Correct Answer: 4

Explanation

A secure baseline configuration represents an approved and known-good state for an OT device or system. It can include settings such as enabled services, communication parameters, access controls, software versions, and security configurations. Maintaining a baseline helps administrators identify configuration drift and investigate unexpected changes. It can also support recovery after a failure or security incident when a known-good configuration needs to be restored. Baselines should be created carefully and validated with operational teams because an overly restrictive configuration could interfere with legitimate processes. They should also be reviewed when equipment, software, or operational requirements change.

Question 357

Which factor should be considered when prioritizing OT vulnerabilities for remediation?

1. Only the vulnerability identifier
2. Asset criticality and potential operational impact
3. The device’s screen size
4. The number of installed printers

Correct Answer: 3

Explanation

OT vulnerability prioritization should consider more than the technical severity of a vulnerability. Asset criticality, network exposure, exploitability, operational impact, safety considerations, and available compensating controls can all influence remediation priorities. A vulnerability affecting a noncritical isolated system may present a different risk than the same vulnerability on a controller supporting an essential process. OT teams must also consider whether patching is technically and operationally safe. Where immediate remediation is not possible, segmentation, access restrictions, monitoring, or other compensating controls may reduce exposure. Risk-based prioritization helps organizations focus limited resources on vulnerabilities with the greatest potential consequences.

Question 358

What is a major benefit of centralized log collection for multiple OT security devices?

1. It removes the need for authentication
2. It prevents every possible attack
3. It provides a consolidated view for analysis and investigation
4. It automatically replaces vulnerable devices

Correct Answer: 4

Explanation

Centralized log collection brings security events from multiple devices and systems into a common location for analysis. This can make it easier to identify relationships between events occurring across different OT network segments. For example, an authentication failure, firewall event, and unusual connection may provide more useful context when viewed together than when examined independently. Centralized logging can also support reporting, incident investigation, and historical analysis. Logs should be protected against unauthorized modification and retained according to organizational requirements. Security teams should configure appropriate event collection so that important information is available without generating unnecessary volumes that make analysis difficult.

Question 359

Which approach can help protect an OT network from compromised enterprise IT systems?

1. Directly connecting enterprise systems to controllers
2. Using segmentation and controlled communication between IT and OT
3. Allowing all traffic between networks
4. Removing the industrial DMZ

Correct Answer: 2

Explanation

Enterprise IT systems can become compromised through phishing, malware, vulnerable applications, or other attack methods. If IT and OT networks are directly and broadly connected, an attacker may attempt to move from a compromised enterprise system into operational environments. Segmentation and controlled communication can reduce this risk by creating boundaries between the networks. An industrial DMZ can provide an intermediary layer for services that require communication between IT and OT. Firewall policies should restrict traffic to documented requirements. Monitoring connections between zones can also help identify suspicious behavior. These controls reduce unnecessary exposure while allowing legitimate business and operational communication.

Question 360

What should be done when an OT security alert is generated for unusual industrial traffic?

1. Investigate the alert using network, asset, and operational context
2. Immediately delete all logs
3. Automatically shut down every controller
4. Ignore the alert without review

Correct Answer: 1

Explanation

An unusual industrial traffic alert should be investigated using technical and operational context before disruptive action is taken. Security teams can review the source and destination devices, protocol information, timing, historical behavior, asset criticality, and related security events. Operational personnel can help determine whether the traffic corresponds to scheduled maintenance, engineering activity, or legitimate process changes. If the activity appears malicious, the response should follow the organization’s OT incident-response procedures and consider containment options that minimize operational impact. Preserving relevant logs and evidence is important for investigation. A contextual approach helps distinguish genuine threats from legitimate changes in complex industrial environments.