Question: In a single cell E-UTRA environment for UE conformance testing, what determines whether the User Equipment (UE) connects to both IMS PDN and Internet PDN or just the IMS PDN?
Option 1: The presence of a specific APN in the System Simulator's default parameters.
Option 2: The value of the parameter `pc_XCAP_only_APN` set in the test case configuration.
Option 3: The UE's capability to support dual PDN connections as indicated in its device specifications.
Option 4: The System Simulator's default network mode (e.g., LTE, UMTS, etc.) for the basic single cell environment.
Explanation: According to initial conditions for UE conformance testing in a single cell E-UTRA environment, connection setup is contingent upon the `pc_XCAP_only_APN` parameter value. If set to `true`, the UE connects only to IMS PDN; otherwise, it connects to both IMS PDN and Internet PDN for XCAP signalling, highlighting the importance of test case configuration parameters in determining specific conditions for UE conformance evaluation.