BL0-100: Nokia Bell Labs 5G Foundation Exam

The UDSF is a Common Data Layer data-repository function for non-standardized, unstructured data. It differs from the UDR, which stores 3GPP-standardized data. 3GPP defines UDSF as a data repository and specifies unstructured data storage services in TS 29.598.

In the Nokia edge-cloud classification used here, an Edge Cloud can be located up to 1,000 km from the end user. Workloads requiring tighter latency can use more localized edge placement, but that does not change this maximum classification distance.

Cloud elasticity adjusts available capacity as demand changes. Vertical scaling adds compute capacity to an existing resource, while horizontal scaling adds instances such as VMs; both can address high traffic. Microsoft’s Azure Well-Architected Framework defines vertical scaling as adding compute capacity to existing resources and horizontal scaling as adding instances of a resource.

Cloud RAN centralizes and pools some RAN/baseband functions, improving resource utilization and reducing hardware, site, energy, and operational costs. Ericsson identifies cost efficiencies and improved total cost of ownership as key Cloud RAN benefits.

5G transport is designed for flexible, automated, end-to-end service orchestration and network slicing to accommodate varied QoS and SLA requirements at scale. Statically defined, manually configured QoS services cannot efficiently adapt to explosive traffic growth or the diverse, changing requirements of 5G services.