5G Automation Testing Scenario based Q&A

1–5: Automation Framework Design and Tools

  • Q: How would you design an automation framework for 5G testing?
    A:
  • Use modular architecture (e.g., test scripts, utilities, and configurations).
  • Integrate test tools like Spirent, Keysight, or Viavi for traffic generation.
  • Use Python or Robot Framework for script development.
  • Implement logging and reporting mechanisms for detailed analysis.
  • Q: How do you automate 5G call flow validation?
    A:
  • Use simulators to mimic UEs and gNBs.
  • Automate signaling verification (RRC, NGAP, and PFCP) using tools like Wireshark or custom parsers.
  • Validate success/failure scenarios for session establishment.
  • Q: What tools are used to automate KPI monitoring in a 5G network?
    A:
  • Prometheus for real-time monitoring.
  • Grafana for dashboard visualization.
  • Automation scripts (Python/Ansible) to collect metrics like latency, throughput, and packet loss.
  • Q: How would you implement automation for end-to-end 5G network slicing testing?
    A:
  • Automate slice provisioning using APIs exposed by the network orchestrator.
  • Simulate traffic for each slice and validate SLA adherence.
  • Use tools like Spirent Landslide or Keysight to automate slice-specific KPI checks.

  • Q: How would you automate regression testing for 5G gNB features?
    A:
  • Use CI/CD pipelines integrated with Jenkins or GitLab for automated test execution.
  • Include a mix of unit, functional, and performance tests.
  • Trigger automated scripts upon feature updates to validate stability.

6–10: Network Function Testing

  • Q: How do you automate testing of 5G Core Network functions like AMF and UPF?
    A:
  • Use REST APIs for automated configuration of core functions.
  • Simulate control-plane (e.g., NGAP) and user-plane (e.g., GTP-U) traffic using automation tools.
  • Validate KPIs like session setup time and throughput.
  • Q: How do you automate the validation of 5G NR RAN features?
    A:
  • Simulate scenarios like beamforming, dynamic spectrum sharing, and mobility.
  • Use scripting tools to validate measurements like SINR and CQI.
  • Automate reporting to track RAN performance metrics.
  • Q: How would you automate testing of handover scenarios in 5G?
    A:
  • Simulate UE mobility between gNBs using traffic generators.
  • Automate signaling message verification (Xn, N2, or S1 interfaces).
  • Validate seamless session continuity and latency during handover.
  • Q: How would you test dynamic QoS management in a 5G network?
    A:
  • Automate testing of QoS rules using the PCRF/PCF API.
  • Simulate different traffic classes (eMBB, URLLC) and validate prioritization.
  • Verify real-time KPI adjustments under varying network conditions.
  • Q: How would you automate MEC (Multi-Access Edge Computing) validation in 5G?
    A:
  • Automate application deployment and traffic routing at the edge.
  • Use APIs to measure latency improvements compared to centralized setups.
  • Validate resource scaling and service continuity during load changes.

11–15: Performance Testing Automation

  • Q: How would you automate throughput testing in a 5G network?
    A:
  • Use tools like iPerf, IxLoad, or Spirent to simulate large-scale traffic.
  • Automate test case execution with varying loads to benchmark throughput.
  • Collect and visualize results for uplink and downlink performance.
  • Q: How do you automate latency measurement for 5G URLLC use cases?
    A:
  • Simulate URLLC traffic using precise time-stamping tools like Keysight’s IxNetwork.
  • Automate the collection of latency data and compare against URLLC benchmarks (<1ms).
  • Q: How would you automate stress testing of the 5G Core?
    A:
  • Use traffic simulators to generate high control-plane and user-plane loads.
  • Automate resource monitoring (CPU, memory) and test system resilience.
  • Q: How would you automate testing of massive IoT connections in 5G?
    A:
  • Simulate thousands of IoT device connections using UE emulators.
  • Automate the validation of connection setup times, QoS, and device throughput.
  • Q: How would you automate beamforming validation in a 5G RAN?
    A:
  • Simulate UE positions in various locations.
  • Automate measurement of beam angles and power levels.
  • Validate SINR improvements dynamically.

16–20: Fault, Security, and CI/CD Integration

  • Q: How do you automate fault injection testing in a 5G network?
    A:
  • Use tools like Chaos Monkey or custom scripts to simulate node or link failures.
  • Automate validation of fault detection and recovery mechanisms.
  • Q: How would you automate penetration testing for a 5G network?
    A:
  • Use tools like Metasploit or OWASP ZAP to simulate attacks.
  • Automate scans for vulnerabilities in 5G interfaces like N2 and N3.
  • Q: How do you integrate automated testing into a CI/CD pipeline for 5G?
    A:
  • Integrate test scripts with Jenkins or GitLab for continuous execution.
  • Trigger tests automatically on new code commits or feature updates.
  • Automate reporting and error tracking to ensure quick fixes.
  • Q: How would you automate slice-specific testing in 5G private networks?
    A:
  • Automate provisioning of private slices using APIs.
  • Simulate traffic specific to private slice requirements (e.g., enterprise IoT).
  • Validate SLA compliance for latency, jitter, and throughput.
  • Q: How do you automate energy efficiency testing in 5G networks?
    A:
  • Automate power consumption monitoring during varying traffic loads.
  • Validate energy-saving modes like sleep mode in O-RAN components.
  • Use scripts to compare energy usage across different configurations.