ECP-841 Ericsson Pro - 5G Packet Core and Policy Mock Tests

1. 3GPP 5G Core Architecture5G System (5GS) Fundamentals: Understanding the 5G Service-Based Architecture (SBA). Network Functions (NFs): Roles and responsibilities of the AMF, SMF, UPF, PCF, UDM, NRF, and NSSF.Reference Points and Interfaces: Functional interaction between NFs and the Service-Based Interface (SBI) Network Slicing: Architecture, deployment strategies, and management of network slices to support varied service requirements (e.g., eMBB, URLLC, mMTC). 2. 3GPP 5G Core Protocols and ProceduresRegistration and Connection Management: Procedures for UE registration, deregistration, and connection state transitions (CM-Idle/CM-Connected).Session Management: PDU session establishment, modification, and release procedures.Mobility Management: Inter-system handover, inter-gNB mobility, and support for roaming scenarios.Protocol Stacks: Understanding HTTP/2, JSON, and RESTful APIs in the context of the service-based architecture.3. Ericsson 5G Packet Core Product ArchitectureEricsson Packet Core Gateway (PCG): Understanding the hardware/software abstraction and the role of the User Plane Function (UPF) in the Ericsson portfolio.Cloud-Native Design: Principles of microservices, containerization, and virtualization (NFV/SDN) as applied to Ericsson’s core network functions.Scalability and High Availability: Mechanisms for state management, redundancy, and load balancing within the 5G core.4. Ericsson Policy Control (SAPC-PCF)Policy Control Function (PCF) Overview: Architecture and functionality of the PCF in controlling QoS, charging, and traffic routing.Policy Rules and Provisioning: Defining and managing Policy and Charging Control (PCC) rules.Integration with Other NFs: How the PCF interacts with the SMF (for session management) and the UDM (for subscriber data access).Dynamic Policy Decision-Making: Implementing dynamic policy decisions based on network load, subscription information, and application requirements.5. Deployment and OperationsDeployment Methodologies: Standard practices for deploying core network functions in cloud environments (e.g., Ericsson Cloud/Telco Cloud).Configuration Management: Performing initial configurations, managing parameters, and updating software versions.Lifecycle Management: Upgrading and scaling network functions while ensuring Network Integration: Connecting the 5G Core with existing Radio Access Networks (NR) and potential interworking with 4G Evolved Packet Core (EPC). 6. Troubleshooting and MaintenanceMonitoring and Observability: Utilizing logs, counters, and traces to monitor network health.Fault Management: Identifying and isolating issues within the service-based architecture.Diagnostic Tools: Leveraging specific Ericsson O&M (Operations and Maintenance) tools to perform deep-packet inspection and signaling analysis.Common Scenarios: Resolving frequent issues related to session setup failures, connectivity drops, and policy enforcement errors.Note: The ECP-841 certification focuses on the technical proficiency required to deploy and operate these specific Ericsson products. It is highly recommended to supplement this outline with official Ericsson product documentation and hands-on experience in a lab or production environment to fully prepare for the exam.