5G Core Concepts

Which of the following represents a core principle of the 5G system architecture related to network function behavior?

In 5G Core, a single UE can only connect to a single network slice at any given time, ensuring isolation and exclusive resource allocation.

Within the context of the 5G core network architecture, what critical role does the Authentication Server Function (AUSF) play, particularly concerning the provisioning of security information?

The ______ function is responsible for enabling secure exposure of 3GPP network capabilities and events to external entities.

Link the following 5G Core architectural components with their corresponding functions:

Which feature is NOT included on release 15’s new 5G core architecture?

In 5G Core architecture, the User Plane Function (UPF) is exclusively responsible for mobility management.

What is the key benefit of CUPS (Control and User Plane Separation) architecture implemented in 5G Core networks?

The ______ is a function in 5G Core used to select a set of network slice instances that a UE will use.

Match each standardized 5QI value with a service example:

Which protocol uses traffic steering at UPF to route traffic to proper destination?

The 3GPP mandates a specific hardware configuration and operating system for implementing 5G Core network functions to ensure standardization.

Elaborate on the significance and function of the Subscription Concealed Identifier (SUCI) within the context of 5G network security and subscriber privacy.

Within the 5G core architecture, the role of ______ is to provide service discovery and selection functionalities, facilitating the registration and deregistration of network function services.

Match each mobility case used in 5GC with its description:

Which of the following best describes the function of 'network slicing' in 5G core networks?

In a 5G network architecture, the UE is required to simultaneously support both 3GPP and non-3GPP access technologies, necessitating a unified access management procedure.

Within the context of 5G Core, elaborate on the role of Policy and Charging Control (PCC) and how it facilitates differentiated Quality of Service (QoS) handling for diverse services.

The architectural approach wherein network functions expose their capabilities through a ______ is known as Service-Based Architecture (SBA) in 5G core networks.

Match each 3GPP 5G standard architecture option based on its characteristics

Which of the following defines a group of entities as serving the service’s operations in 5GC?

In the context of the 5G Core network, the Network Slice Selection Assistance Information (NSSAI) is exclusively provided by the User Equipment (UE) and cannot be influenced or modified by the network.

Detail the procedure for a Service Request in 5G and its relation to Discovery.

In 5G architecture, IMS relies on ______, to function.

Please match the PDU Session types with their description:

A logical network serving defined business purpose or customer?

The 5G Core stipulates that edge computing deployments must exclusively use operator-owned infrastructure to ensure security and control.

What is meant by ‘slicing’ the network, and its aim?

5G core architecture must leverage ______ interactions between control plane network functions.

Match the 5G terms with their definitions:

“CUPS” is CP/UP separation of [blank]?

In 5G Core, network slicing is primarily intended to enhance the performance of legacy 4G LTE networks by offloading excess traffic.

What is Network Exposure Function (NEF)?

The 5G Core uses ______ for it's main coding language/protocol.

Match the different 5G Core evolution stages with a brief description

Which of the following accurately describes the role and deployment scope of the 5G Core Session Boundary Controller (SBC)?

In the context of 5G Quality of Service, Guaranteed Bit Rate (GBR) flows are exclusively utilized for non-real-time data services to ensure optimal resource allocation.

In 5G core, detail what is considered 5G system and what does it consist of?

In 5GC the AF, or Application Function, helps implement ______ to perform UE location.

In the context of 5G core network slicing, which of the following encapsulates the principle of tailoring network capabilities to specific customer needs, driving the demand for differentiated service offerings?

The 5G Core architecture mandates that all network functions (NFs) must be implemented as physical appliances to ensure optimal performance and security.

In the evolution towards 5G core networks, the transition from monolithic integrated nodes to ______ marks a critical shift towards enhanced resource utilization and operational efficiency.

What paradigm shift does 'CUPS' (Control and User Plane Separation) represent in the evolution of mobile core network architecture?

Explain the operational and architectural considerations necessary when migrating a 5G Core network from a non-standalone (NSA) to a standalone (SA) deployment, especially concerning service continuity and subscriber management.

Which of the following is not a primary technical specification that defines the architecture and procedures of the 5G system?

In 5G Core architecture, the Access and Mobility Management Function (AMF) is solely responsible for user authentication and has no role in mobility management once the session is established.

Describe the implications of selecting Session and Service Continuity (SSC) mode 3 for a PDU session on the User Plane Function (UPF) selection and IP address assignment during mobility events in a 5G network.

Which identifier is primarily used to conceal the Subscription Permanent Identifier (SUPI) over the air interface in 5G networks, enhancing user privacy against IMSI-catcher attacks?

The 5G Core architecture introduces a ______ where control plane network functions can interact with each other through well-defined interfaces, promoting modularity and scalability.

Match the following 5G Core network functions with their primary roles:

The AMF (Access and Mobility Management Function) in 5G core exclusively supports devices with SIM cards, rendering it incapable of managing devices that connect without traditional SIM-based authentication.

What key advancement related to network slicing was achieved in 3GPP Release 17 regarding frequency band utilization?

What is the primary role of the Network Exposure Function (NEF) in a 5G core network?

The ______ function in 5G core is critical for enabling service discovery, selection and authorization, providing a centralized repository of available network functions and their capabilities.

What mechanism is defined for usage monitoring, application steering, spending limits within the PCC (Policy and Charging Control) framework?

The Unified Data Management (UDM) function in 5G Core solely manages user subscription data and has no role in storing or managing policy data.

Discuss the technical challenges and solutions associated with enabling seamless interworking between a 5G core network and existing 4G LTE infrastructure, especially concerning session continuity and quality of service.

In 5G, the User Plane Function (UPF) plays a crucial role. Which of the following functions lies within the UPF's responsibilities?

Which of the following is a key aspect of 5G Core architecture enhancing security and trust?

Describe various architectural options to support IMS voice services in 5G and the trade-offs.

According to 3GPP specifications for 5G, network slicing mandates that user plane functions for different slices must always be co-located to minimize latency.

What fundamental change is enabled by the introduction of the NRF within a 5G core network?

A successful implementation of the 5G core hinges upon a robust ______ framework, providing comprehensive insights into network performance, security threats, and user behaviour.

Instructions: Match these network specifications with their descriptions:

5G core slicing guarantees Quality of Service

Which identifier is used to ensure subscriber privacy?

In the context of edge network computing, which potential role could be assumed by a network operator?

Which of the is a driver of CUPS (Control & User Plane Separation)

When did 5GC SBA base architecture get it's release?

A given PDU session can utilize more than one slice.

There main 3GPP specs, which of the following is not one of them.

Match what these all offer to the user:

What is UDICOM (Rel-16)?

For slicing to work, the RAN (radio access network) cannot be shared accross slices.

When 5G Core is built upon EPS, what two options does it support when adding NR.

What is the point at which we 'make before break' and hold a PDU, according to Service and Continuity (SSC) Mode 3

Which statement correctly characterizes 5G System architecture's approach to Network Functions (NFs)?

In 5G core network evolution, the "virtualized deployment" phase is characterized by software-defined infrastructure and automated life-cycle management.

What is the crucial role of the Session Management Function (SMF) in conjunction with the User Plane Function (UPF) regarding Quality of Service (QoS) within a 5G network?

In 5G, the ______ is the logical network entity primarily tasked with ensuring that a User Equipment (UE) is admitted to a network slice based on predefined criteria.

Which parameter pair is used by the Access and Mobility Management Function (AMF) to select a Session Management Function (SMF) for a new PDU session in 5G?

In the context of 5G Core, the User Data Repository (UDR) is responsible for storing subscription data specifically for policy decisions, while the Unified Data Management (UDM) stores subscription data for authentication purposes.

What critical enhancement in 5G Core architecture, related to User Plane latency, is facilitated by the CUPS architecture?

The 5G architecture uses 3GPP TS ______ to specify procedures and flows to capture interactions between the user equipment and network functions.

Within a 5G core network, what is the primary function of the 'Network Exposure Function' (NEF)?

In 5G Core, network slicing is primarily a RAN (Radio Access Network) concept with minimal impact on Core Network architecture.

In Network Slicing, what three dimensions are part of the strategy?

Radio Access Network slicing allows for the ______ of network resources, enabling mobile network operators to offer customized services tailored to varying use case requirements.

Match the following 5G Core architectural enhancements with their respective descriptions:

What is a primary driver behind the move towards cloud-native and automated operations in 5G core networks?

In 5G Core architecture, the Access and Mobility Management Function (AMF) is solely responsible for managing mobility within the core network, while session management (SMF) handles all aspects of radio resource allocation.

In terms Subscriber Data Management, what identifier relates to privacy in 5G?

In 5G Core, a ______ is a scalar used as reference to specific QoS forwarding behavior.

Which functional component of the 5G core architecture is responsible for supporting the policy control on LTE/NR?

The UE Route Preference (URSP) is static, and does not modify traffic based on the route.

During network slice selection, what element exchanges info with AMF and RAN to build up information about supported Network Slices per TA (Tracking Area)?