Question: In UTRAN Iu interface data transport, what is a key aspect of IP Differentiated Services (DiffServ) code point marking for traffic management?
Option 1: The mapping between traffic categories and Diffserv code points is statically defined by the network architecture.
Option 2: The mapping between traffic categories and Diffserv code points is configurable by Operations & Maintenance (O&M) for each traffic category.
Option 3: Traffic categories are standardized across all implementations, ensuring uniform Diffserv code point marking.
Option 4: Diffserv code point marking is optional and only applied to non-real-time traffic.
Explanation: The correct answer highlights the flexibility in managing traffic categories through configurable mapping by O&M. This aligns with efficient network management practices, allowing adaptation to varying traffic patterns without requiring architectural changes.