Your organization is tasked with handling highly sensitive government data that mandates the highest level of security and cannot be exposed to external networks under any circumstances. Which of the following network architecture models would be most appropriate to ensure the physical isolation of this data environment?
Software-defined networking (SDN) with enhanced access controls
Virtual private network (VPN) with strong encryption
Intrusion prevention system (IPS) with up-to-date signatures
An air-gapped network architecture model is the correct choice because it provides a network that is physically isolated from unsecured networks, including the internet and other local networks that are not secure. This ensures that sensitive data is protected from external threats and cannot be accessed or compromised through conventional network intrusion methods. The other options, although secure, do not offer the same level of physical isolation inherent to an air-gapped environment.
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What is an air-gapped network?
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Why isn't a VPN suitable for protecting sensitive government data?
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What other security measures might complement an air-gapped network?