Question: In a CIoT EPS optimized network, how is Non-IP data typically delivered to the Service Capability Server/Application Server (SCS/AS), considering the two defined mechanisms?
Option 1: Exclusively via a Point-to-MultiPoint (PtMP) SGi tunnel, ensuring in-sequence delivery.
Option 2: Either through a Point-to-Point (PtP) SGi tunnel or utilizing the Short Message Service Center (SMSC).
Option 3: By one of two mechanisms: using a Point-to-Point (PtP) SGi tunnel or via the Service Capability Exposure Function (SCEF).
Option 4: Solely through the SCEF, with guaranteed in-sequence delivery and no potential for data PDU loss.
Explanation: This option correctly identifies the two mechanisms defined for delivering Non-IP data to SCS/AS in CIoT EPS optimized networks: Point-to-Point (PtP) SGi tunnel, a direct dedicated connection, and Service Capability Exposure Function (SCEF), facilitating interactions with packet data networks and applications. The other options are incorrect due to introducing non-applicable mechanisms, guaranteeing in-sequence delivery which contradicts the specification for Non-IP data, or limiting delivery to a single method.