Virtual Labs

Demonstrate Connection Management Procedures

Q1. In 5G CM, which layer primarily governs CM-IDLE and CM-CONNECTED states?

a: Radio Resource Control (RRC) Explanation

Explanation

b: NAS (Non-Access Stratum) Explanation

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c: SCTP Layer Explanation

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d: PHY Layer Explanation

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Q2. What is the primary purpose of the CM-IDLE state?

a: Maintain RRC connection Explanation

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b: No MM context exists Explanation

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c: UE reachable without RRC connection Explanation

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d: UE detached Explanation

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Q3. Which procedure triggers transition from CM-IDLE to CM-CONNECTED?

a: Periodic Registration Explanation

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b: Service Request Explanation

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c: SIM Refresh Explanation

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d: Airplane Mode Explanation

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Q4. Which message carries the NAS Service Request to AMF?

a: RRC Setup Complete Explanation

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b: Initial UE Message Explanation

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c: NGAP Paging Explanation

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d: Path Switch Request Explanation

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Q5. Which NF restores UE access context during Service Request?

a: UPF Explanation

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b: SMF Explanation

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c: AMF Explanation

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d: PCF Explanation

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Q6. After Service Request completion, UE state becomes:

a: Deregistered Explanation

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b: CM-IDLE Explanation

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c: CM-CONNECTED Explanation

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d: SM-INACTIVE Explanation

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Q7. What is preserved during UE Context Release?

a: RRC connection Explanation

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b: NAS context Explanation

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c: Radio bearer Explanation

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d: PHY resources Explanation

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Q8. Who initiates UE Context Release Command?

a: UE Explanation

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b: AMF Explanation

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c: SMF Explanation

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d: gNB Explanation

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Q9. Which message confirms UE Context Release completion?

a: Initial Context Setup Response Explanation

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b: UEContextReleaseComplete Explanation

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c: Service Accept Explanation

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d: NG Reset Explanation

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Q10. What happens to user-plane tunnels during context release?

a: Deleted permanently Explanation

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b: Suspended Explanation

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c: Unaffected Explanation

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d: Moved to SMF Explanation

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Q11. What triggers network-initiated context release?

a: TAU Explanation

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b: Inactivity timer expiry Explanation

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c: Handover Explanation

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d: PFCP update Explanation

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Q12. Paging in CM-IDLE is managed by:

a: UPF only Explanation

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b: AMF via registration area Explanation

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c: SMF Explanation

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d: SCTP Explanation

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Q13. Which entity triggers paging on downlink data?

a: UPF Explanation

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b: gNB Explanation

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c: PCF Explanation

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d: AUSF Explanation

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Q14. Which RRC state is required before sending Service Request?

a: RRC-INACTIVE Explanation

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b: RRC-CONNECTED Explanation

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c: RRC-NULL Explanation

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d: RRC-IDLE Explanation

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Q15. CM-IDLE to CM-CONNECTED transition involves:

a: Deregistration Explanation

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b: RRC re-establishment + context restore Explanation

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c: Session deletion Explanation

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d: Authentication restart Explanation

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