4A0-M02 Online Practice Questions and Answers

Which of the following statements is TRUE regarding the IP connectivity between a UE and a PDN?

A. A UE gets an IPv4 address and/or an IPv6 prefix per APN.

B. A PGW forwards the UE's IP packets to the PDN based on the address of the PDN server.

C. When a UE sends an IP packet to a PDN over the EPC core, the eNodeB forwards the encapsulated packet to the SGW by looking into its IP routing table to determine how to reach the PDN server.

D. The SGW forwards the UE's IP packets to the PGW based on the address of the PDN server.

E. Only answers C and D are correct.

F. Only answers A and B are correct.

In a 3G network, which of the following is used to build a PDP context between a UE and the GGSN when a direct tunnel is not used?

A. An end-to-end GTP tunnel between the UE and the GGSN.

B. A Radio Access Bearer between the UE and the NodeB and a GTP tunnel between the NodeB and the GGSN.

C. A Radio Access Bearer between the UE and the SGSN and a GTP tunnel between the SGSN and the GGSN.

D. A Radio Access Bearer between the UE and the SGSN.

E. None of the above answers are correct.

Which of the following statements are TRUE regarding the SDF templates /filters? (Choose three)

A. An SDF filter can identify an SDF flow by matching the information in the IP 5-tuple and the Layer-7 application

B. One SDF template can have only one SDF filter for each direction.

C. One dedicated bearer can have more than one SDF template and multiple SDF filters.

D. One dedicated bearer can have only one SDF template.

E. One SDF template can have multiple SDF filters for each direction,

F. One dedicated bearer can have more than one SDF template.

Which of the following statements is FALSE regarding the QCI / ARP?

A. An EPS bearer may be associated with more than one QCI value.

B. A new QCI policy can be defined on the Alcatel-Lucent 7750 MG to overwrite the default one.

C. A default QCI/ARP policy is predefined on the Alcatel-Lucent 7750 MG and cannot be modified.

D. A default bearer cannot be associated with a QCI value of 4.

E. The QCI has 9 classes and the ARP has 15 levels.

Based on the information shown in the exhibit, which of the following statements is FALSE?

A. Gx commands are not being exchanged with the PCRF peer.

B. EPS bearers can be successfully established to this PGW.

C. The TCP connection to the PCRF peer is not established.

D. Watchdog messages are not being exchanged with the PCRF peer.

E. None of the above statements are false.

Which of the following statements is FALSE regarding the configuration of Key Performance Indicator/Key Capacity Indicator (KPI/KCI) on an Alcatel-Lucent 7750 MG?

A. The mobile-gateway instance must be shutdown before enabling the stats collection

B. A log file must be configured.

C. An accounting policy must be configured.

D. Only one record can be configured in a policy.

E. Only one policy can be assigned to a serving/pdn instance.

F. None of the above statements are false.

Which of the following statements is FALSE regarding the X2 interface?

A. It is the interface used to connect two eNodeBs.

B. It provides some mobility management functions between two eNodeBs.

C. The X2-AP is the application layer signaling protocol for the X2 interface.

D. It is never used to transport user data packets.

E. It is an IP-based interface.

Which of the following most accurately describes the CPM modules on an Alcatel-Lucent 7750 MG?

A. The CPM modules are responsible for load balancing the EPS bearers.

B. The CPM modules always choose the same MG-ISM group to handle all the bearers of a given UE.

C. Two CPM modules can be installed on an Alcatel-Lucent 7750 MG node. One CPM is in active state while the other is in hot-standby state.

D. The CPM module also includes the Switch Fabric function for the Alcatel-Lucent 7750 MG.

E. All of the above answers are correct.

Based on the information shown in the exhibit, which of the following statements is TRUE regarding the UE state and its default bearer?

A. The UE is in the active state. The default EPS bearer is fully established.

B. The UE is in the active state. The default EPS bearer is not fully established.

C. The UE is in the idle state. The default EPS bearer is fully established.

D. The UE is in the idle state. The default EPS bearer is not fully established.

Which of the following statements is FALSE regarding the service request procedure?

A. The UE is always paged during a service request procedure.

B. The S1-MME signaling connection is reestablished for the UE as a result of a service request procedure.

C. The radio bearers are reestablished for the UE as a result of a service request procedure.

D. The S1 GTP-U tunnels are reestablished for the UE as a result of a service request procedure.

E. None of the above statements are false.