A defense contractor operates older industrial systems that must remain online for critical operations. Which approach reduces infiltration from external connections while allowing essential data to flow?
Use a dynamic bridging process to coordinate traffic across all segments
Set up multiple VLANs and enable remote administration through a shared port
Activate frequent outbound connections for updates on each older system
Use a hardened gateway that enforces one-way data flow to untrusted networks
Isolating sensitive systems from untrusted networks with a specialized transfer gateway helps mitigate infiltration efforts. Transferring necessary data occurs through a controlled channel monitored for anomalies. Other methods expose vulnerable systems to network threats or do not adequately filter traffic. VLANs alone rely on correct configuration, and real-time bridging can propagate hostile traffic between segments. Regular polling from external sources undermines protective barriers.
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What is a hardened gateway, and how does it enforce one-way data flow?
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How does isolating sensitive systems help mitigate infiltration from external connections?
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Why are VLANs or dynamic bridging less effective than a hardened gateway for this scenario?