4A0-M10 Online Practice Questions and Answers

Which of the following statements regarding cloud RAN architecture is FALSE?

A. The gNB is split into three functional modules: a radio unit (RU), a distributed unit (DU), and a centralized unit (CU).

B. DU performs the non-real time processing of layer 2.

C. The fronthaul segment connects RU to DU and the midhaul segment connects DU to CU.

D. CU can be deployed in the cloud as a VNF.

A UE has a PDU session established using slice 1. The operator removes slice 1 from the UE subscription data stored in UDM. Which of the following actions is NOT performed as a result?

A. UDM notifies the serving AMF about the UE subscription data modification.

B. AMF initiates the UE configuration update procedure.

C. AMF requests the UE to release the established PDU session.

D. UE updates its slicing information with the data received from AMF.

Which of the following statements about network slice selection assistance information (NSSAI) is FALSE?

A. Allowed NSSAI is a set of slices provided to UE by AMF during UE registration procedure.

B. Requested NSSAI is a set of slices provided by UE to the network and contains values from serving PLMN.

C. Subscribed NSSAI is a set of slices specified in the UE subscription data and contains only home PLMN values.

D. Configured NSSAI is a set of slices configured on the AMF and contains slices supported per tracking area.

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.

Which of the following actions related to slicing is NOT performed during UE initial registration procedure?

A. An AMF that supports the requested NSSAI is selected to serve the UE.

B. AMF receives an AMF set from NSSF.

C. AMF receives a list of SMFs which support the requested NSSAI from NRF.

D. UE receives the allowed NSSAI from AMF.

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 statements about session aggregate maximum bit rate (session-AMBR) is FALSE?

A. Session-AMBR limits the aggregate bit rate provided across all non-GBR QoS Flows of a PDU session.

B. SMF calculates the session-AMBR value to be enforced.

C. The UPF that terminates the N6 interface enforces the session-AMBR value in the downlink direction.

D. NG-RAN enforces the session-AMBR in the uplink direction.

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

A. N3

B. N4

C. N6

D. N9

Which 5GS network function allows UE connectivity to 5GC through non-3GPP access networks?

A. SEPP

B. N3IWF

C. NWDAF

D. NEF

Which Nokia product is used for the AMF in 5GS?

A. Cloud Mobility Manager

B. Cloud Mobile Gateway

C. Network Resource Discovery

D. Smart Plan Suite