Data Diode ICSSCADA Practice Questions (Page 7)

Questions 31–35

1. 31foundation · easy

   What should be evaluated before deploying a data diode in an ICS/SCADA network?

   • AThe brand of the data diode to ensure compatibility with existing firewalls
   • BThe types of data that need to be transferred and whether they can be sent using a one-way communication method
   • CThe number of users who will need to access the data diode for administrative purposes
   • DThe color of the data diode casing to ensure it matches the network equipment
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2. 32foundation · easy

   Which of the following is a limitation of data diodes in ICS/SCADA environments?

   • AThey cannot be used to transfer data from a high-security network to a low-security network
   • BThey are too expensive for most industrial applications
   • CThey do not support protocols that require a response, such as TCP-based communications
   • DThey are unable to provide any form of data integrity checking
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4. 33foundation · easy

   When deploying a data diode in an ICS/SCADA environment, what is a key factor to consider?

   • AThe direction of data flow must be aligned with the security requirements of the networks
   • BThe data diode should be configured to allow bidirectional traffic during maintenance windows
   • CThe data diode must be placed in a location that allows for physical access to both networks
   • DThe data diode must be connected to the internet to receive firmware updates
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5. 34expert · hard

   An engineer is designing a data diode for a high-availability SCADA system. They need to ensure that the diode itself does not become a single point of failure. What is the best approach?

   • AUse a software-based unidirectional gateway instead, as it can be clustered
   • BDeploy a single data diode and rely on the vendor's warranty
   • CDeploy two data diodes in parallel, each with its own power supply and monitoring
   • DDeploy a single data diode with a bypass switch for maintenance
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6. 35application · easy

   A manufacturing plant wants to use a data diode to send production data to a vendor for remote diagnostics. The vendor also needs to send configuration updates back to the plant's PLCs. What is the most important limitation to communicate to the vendor?

   • AThe data diode will encrypt all data, making it unreadable to the vendor.
   • BThe data diode only allows one-way data flow, so the vendor cannot send configuration updates through the same path.
   • CThe data diode requires a dedicated fiber connection, which the vendor must install.
   • DThe data diode will slow down the data transfer speed significantly.
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