Packet Data Network Gateway

Target entity: Packet Data Network Gateway
Context triple: [Serving Gateway, connectsTo, Packet Data Network Gateway]

• A. 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.
• 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. ANQP (Access Network Query Protocol)
  ANQP (Access Network Query Protocol) is a network protocol that allows Wi‑Fi clients to query access points for detailed information about available networks and services before associating, enabling seamless and informed network selection in systems like Hotspot 2.0.
• D. GPON
  GPON (Gigabit Passive Optical Network) is a high-speed fiber-optic access technology that delivers broadband internet, voice, and video services over a shared passive optical infrastructure.
• E. PCRF
  PCRF (Policy and Charging Rules Function) is a core network element in modern mobile systems that dynamically manages policy control and charging rules for data services.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Packet Data Network Gateway
Target entity description: 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.

• A. eNodeB
  eNodeB is the base station in LTE networks responsible for radio transmission, reception, and control functions between user devices and the core network.
• B. 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.
• C. 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.
• D. GPRS
  GPRS (General Packet Radio Service) is a mobile data standard that enables packet-switched internet and multimedia services over 2G and 3G cellular networks.
• E. PDCP
  PDCP (Packet Data Convergence Protocol) is a key LTE/E-UTRAN layer responsible for header compression, security (ciphering and integrity), and in-sequence delivery of user and control plane data between the radio network and the core.
• F. None of above. chosen