Which term describes security stacks implemented between the base SIPRNet Security Domain Points (SDPs) and the DoD SIPRNet, providing Intrusion Prevention System (IPS) and Intrusion Detection System (IDS) capabilities?

Which term describes security stacks implemented between the base SIPRNet Security Domain Points (SDPs) and the DoD SIPRNet, providing Intrusion Prevention System (IPS) and Intrusion Detection System (IDS) capabilities?

• A. SIPRNet Gateways
• B. SIPRNet Enclave
• C. Proxy
• D. AFNGS

Answer: (A)

SIPRNet Gateways are the boundary devices that sit between base SIPRNet Security Domain Points and the DoD SIPRNet, enforcing policy and inspecting traffic as it crosses the boundary. They host Intrusion Prevention System and Intrusion Detection System capabilities, allowing them to actively block or mitigate threats and to detect suspicious activity in real time. This boundary placement is what defines them: they control access between networks with different trust levels and provide the integrated IPS/IDS function at that chokepoint. Other terms describe different concepts. A proxy acts as an intermediary for specific applications rather than functioning as a dedicated boundary security stack with IPS/IDS at the network edge. An enclave refers to a protected network segment, not the boundary device family. AFNGS is not the standard term used for this boundary security role.

SIPRNet Gateways are the boundary devices that sit between base SIPRNet Security Domain Points and the DoD SIPRNet, enforcing policy and inspecting traffic as it crosses the boundary. They host Intrusion Prevention System and Intrusion Detection System capabilities, allowing them to actively block or mitigate threats and to detect suspicious activity in real time. This boundary placement is what defines them: they control access between networks with different trust levels and provide the integrated IPS/IDS function at that chokepoint.

Other terms describe different concepts. A proxy acts as an intermediary for specific applications rather than functioning as a dedicated boundary security stack with IPS/IDS at the network edge. An enclave refers to a protected network segment, not the boundary device family. AFNGS is not the standard term used for this boundary security role.