Question: What is the current status of custom operations without associated resources for the Nudr_DataRepository Service in the latest release of this specification?
Option 1: Several custom operations are defined, but only for specific use cases.
Option 2: No custom operations without associated resources are currently defined.
Option 3: Custom operations are defined but require additional resource allocation.
Option 4: The definition of such operations is deferred to a future release.
Explanation: This answer reflects the specification's explicit statement that, in the current release, no custom operations without associated resources have been defined for the Nudr_DataRepository Service. This highlights an important aspect of service design in telecom networks, where the absence of certain features or operations can impact how services are implemented and utilized by various stakeholders, including operators and end-users.