Nokia 4A0-M10 Online Practice Questions and Exam Preparation

Nokia 4A0-M10 Online Questions & Answers

• Question 1:

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

• Question 2:

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

• Question 3:

  Which of the following statements about QoS profiles used in 5G is FALSE?

  A. SMF derives the QoS profile of a QoS Flow from a PCC rule and sends it to NG-RAN.
  B. NG-RAN uses the QoS profiles to create mapping between QoS Flow IDs and data radio bearers.
  C. NG-RAN sends the QoS profiles and corresponding QoS Flow IDs to the UE.
  D. Each QoS profile includes a 5G QoS Identifier (5QI) and an Allocation and Retention Priority (ARP).
  C. NG-RAN sends the QoS profiles and corresponding QoS Flow IDs to the UE.

• Question 4:

  Which of the following is NOT an advantage of the 5GS service-based architecture?

  A. Application programming interfaces (APIs) are used to invoke services.
  B. Service-based interfaces are point-to-point.
  C. The service-based architecture enables flexible addition of new network functions and services.
  D. Service producers are not aware of service consumers.
  C. The service-based architecture enables flexible addition of new network functions and services.

• Question 5:

  NF A wants to explicitly subscribe for event notifications at NF B. Which of the following actions regarding this mechanism is FALSE?

  A. NF A acts as a service consumer and NF B acts as a service producer.
  B. NF A includes a subscription identifier in the request message sent to NF B.
  C. NF A includes a callback URI in the request message sent to NF B.
  D. NF A includes event filtering criteria in the request message sent to NF B.
  C. NF A includes a callback URI in the request message sent to NF B.

• Question 6:

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

• Question 7:

  A UE triggers an initial registration procedure to use services offered by a 5G network. Which of the following actions is NOT performed as a result of this procedure?

  A. AMF interacts with AUSF to authenticate the UE.
  B. AMF interacts with PCF to create an AM (access and mobility) policy association.
  C. AMF retrieves the UE AM (access and mobility) and SM (session management) data from UDM.
  D. AMF allocates a 5G-GUTI and includes it in the Registration Accept message sent to UE.
  C. AMF retrieves the UE AM (access and mobility) and SM (session management) data from UDM.

• Question 8:

  Which of the following actions is NOT performed when handling an uplink data packet?

  A. UE maps the uplink data packet to a QoS Flow based on QoS rules received from SMF.
  B. UE maps the QoS Flow identifier to a data radio bearer based on QFI-to-DRB mapping received from NG-RAN.
  C. NG-RAN marks the data packet with the proper DSCP value.
  D. NG-RAN removes the QoS Flow identifier from the packet header and forwards the packet over the proper N3 GTP-U tunnel.
  A. UE maps the uplink data packet to a QoS Flow based on QoS rules received from SMF.

• Question 9:

  Which of the following statements about 5G NG-RAN is FALSE?

  A. The Xn interface is used to connect gNB to ng-eNB.
  B. The NG interface is used to connect ng-eNB to UPF.
  C. The Xn interface is used to connect ng-eNB to AMF.
  D. The NG interface is used to connect gNB to NGC.
  A. The Xn interface is used to connect gNB to ng-eNB.

• Question 10:

  The exhibit below illustrates signaling messages exchanged during a 5GS to EPS Handover procedure using N26. Which information is NOT provided to AMF in step 6 for a PDU session that supports interworking?

  

  A. PGW-U indirect data forwarding tunnel info for the corresponding PDN connection
  B. PGW-C S5-C tunnel info for the corresponding PDN connection
  C. PGW-U S5-U tunnel info for each EPS bearer
  D. EPS bearer ID and QoS parameters for each EPS bearer
  D. EPS bearer ID and QoS parameters for each EPS bearer