Packet Data Networks (PDNs)

Target entity: Packet Data Networks (PDNs)
Context triple: [PGW, connects, Packet Data Networks (PDNs)]

• A. Packet Data Network Gateway
  The Packet Data Network Gateway (P-GW) is a core LTE network element that provides user equipment with IP address allocation, enforces policy and charging, and serves as the interface between the mobile network and external packet data networks such as the internet.
• B. Evolved Packet Core
  Evolved Packet Core is the 4G LTE mobile network architecture responsible for managing data connectivity, mobility, and services between user devices and external IP networks.
• C. Serving GPRS Support Node
  The Serving GPRS Support Node (SGSN) is a core network component in 2G/3G mobile systems responsible for delivering data packets to and from mobile devices and managing their mobility and session states.
• D. ePDG
  ePDG (Evolved Packet Data Gateway) is a core network element in LTE/4G that securely connects users over untrusted non-3GPP access networks, such as public Wi‑Fi, to the mobile operator’s EPC.
• E. E-UTRAN
  E-UTRAN is the LTE mobile network’s air-interface subsystem that connects user devices to the core network via evolved base stations (eNodeBs).
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Packet Data Networks (PDNs)
Target entity description: Packet Data Networks (PDNs) are external IP-based networks, such as the public internet or private corporate networks, that mobile devices access through a mobile core to exchange packet-switched data.

• A. Packet Data Network Gateway
  The Packet Data Network Gateway (P-GW) is a core LTE network element that provides user equipment with IP address allocation, enforces policy and charging, and serves as the interface between the mobile network and external packet data networks such as the internet.
• B. Evolved Packet Core
  Evolved Packet Core is the 4G LTE mobile network architecture responsible for managing data connectivity, mobility, and services between user devices and external IP networks.
• C. Serving GPRS Support Node
  The Serving GPRS Support Node (SGSN) is a core network component in 2G/3G mobile systems responsible for delivering data packets to and from mobile devices and managing their mobility and session states.
• D. ePDG
  ePDG (Evolved Packet Data Gateway) is a core network element in LTE/4G that securely connects users over untrusted non-3GPP access networks, such as public Wi‑Fi, to the mobile operator’s EPC.
• E. E-UTRAN
  E-UTRAN is the LTE mobile network’s air-interface subsystem that connects user devices to the core network via evolved base stations (eNodeBs).
• F. None of above. chosen