Which of the following does NOT apply to an idle UE in MICO mode?

A. The UE performs registration updates.

B. The UE connects to the network to send uplink data.

C. Power and signaling efficiency is optimized for the UE.

D. The UE listens and responds to paging.

Which of the following statements about N2-based handover in 5GS is FALSE?

A. Handover signaling messages are exchanged between source and target NG-RAN nodes through AMF.

B. The serving AMF determines if it can continue to serve the UE and select a target AMF when required.

C. The serving SMF determines if the UPF terminating N3 can continue to serve the UE and selects a target I-UPF when required.

D. The SMF decides whether a direct or indirect downlink data forwarding path is to be used.

Which of the following best describes a UE route selection policy (URSP)?

A. A URSP is a policy pre-configured in the UE. The UE uses this policy to select a non-3GPP access network and an N3IWF to use in the PLMN.

B. A URSP is a policy provisioned to AMF by PCF. The AMF uses this policy to select an SMF that can serve a given PDU session for the UE.

C. A URSP is a policy that can be pre-configured in the UE or provisioned to the UE by PCF. The UE uses this policy to determine how to handle a given application.

D. A URSP is a policy pre-configured on the SMF. The SMF uses this policy to select a UPF that can serve a given PDU session for the UE.

A connected UE moves from 5GS to EPS using the inter-system handover procedure with N26 interface. Which of the following actions is NOT performed?

A. Source gNB sends an NGAP Handover Required message to source AMF with handover type set to “NRtoLTE”.

B. Source AMF obtains session management contexts stored in UDM+HSS for each PDU session that supports interworking.

C. Source AMF sends a Forward Relocation Request message to the target MME and provides session management contexts.

D. Indirect downlink data forwarding paths are established from source gNB to target eNodeB.

Which of the following actions is NOT performed during an Xn-based Inter NG-RAN Handover with I-UPF Insertion procedure?

A. AMF determines that a new I-UPF needs to be added for a PDU session.

B. SMF provides N3 tunnel info of I-UPF to target gNB via AMF.

C. SMF provides N9 tunnel info of UPF PSA to I-UPF.

D. SMF provides N9 tunnel info of I-UPF to UPF PSA.

Which of the following best describes the Secondary Node Addition procedure?

A. Used to transfer bearer contexts from the master eNB to the secondary gNB.

B. Used to establish a UE context at the gNB for a UE that supports option 3X.

C. Used to establish connectivity from the gNB to the EPC.

D. Used to establish an X2 connection between the eNB and gNB.

Which of the following actions is performed when an idle UE moves from 5GS to EPS and the N26 interface is used?

A. UE initiates an Attach procedure and includes an EPS-GUTI derived from its 5G-GUTI.

B. For any PDU session that supports interworking, the serving SMF provides an SM context that includes mapped EPS bearers to the AMF.

C. AMF selects an SGW to serve the UE, and then sets up the required S5-U and S5-C GTP tunnels on the selected SGW.

D. AMF uses the EPS-GUTI derived from the UE 5G-GUTI to discover the MME, and then provides the UE context to the MME.

Which of the following 5GS reference points is used for control plane signaling?

A. N3

B. N4

C. N6

D. N9

Which of the following statements about the downlink user plane data flow in Option 3X is FALSE?

A. Data packets of bearers that do not use dual connectivity are sent from EPC to UE through eNB.

B. When NR coverage is good, data packets of bearers that use dual connectivity are sent from EPC to UE using secondary cell group bearers.

C. When NR coverage degrades, the gNB decides when to use split bearers and send some of the packets received from the core through eNB.

D. When NR coverage is poor, data packets of bearers that use dual connectivity are sent to the UE through eNB.

Which of the following statements about 5GS PDU sessions is FALSE?

A. A PDU session allows for the exchange of PDUs between UE and a data network.

B. A PDU session contains one single dedicated radio bearer and one or more N3 GTP-U tunnels.

C. A PDU session has one default QoS flow and can have multiple non-default QoS flows.

D. A PDU session has one or more UPFs acting as PDU session anchors.