4A0-M02 Online Practice Questions and Answers

Which of the following statements is FALSE regarding the Tracking Area (TA)?

A. A TA is a set of eNodeBs that are defined by a UE itself.

B. A TA is the smallest geographical area in which a UE can roam without performing a Tracking Area Update (TAU) other than periodic TAU as required.

C. A Tracking Area Identity (TAI) is used to identify each tracking area.

D. The Tracking Area Identity (TAI) is assigned by the service provider.

E. One TA may be served by one or more than one MME.

An Alcatel-Lucent SGW is only connected to an Alcatel-Lucent PGW. Based on the information shown in the exhibit, how many GTP-C tunnels are established between the SGW and the PGW?

A. 1

B. 2

C. 3

D. 4

E. 6

Which of the following statements is FALSE regarding the MG-ISM module on an Alcatel-Lucent 7750 MG?

A. The MG-ISM module implements the PCC rules for the EPS bearers.

B. The MG-ISM module can be configured as a SGW/SGSN or a PGW/GGSN.

C. The MG-ISM module enforces the QoS rules for the EPS bearers.

D. On an Alcatel-Lucent 7750 MG, two MG-ISM modules can be configured as 1+1 redundant.

E. The switchover from the active MG-ISM card to the standby MG-ISM card has no impact on other EPC nodes

Which entity decides when a handover procedure needs to be performed?

A. The UE.

B. The source eNodeB.

C. The target eNodeB.

D. The MME.

E. The SGW.

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.

In a 3G network, which of the following statements most accurately describes the user data plane between a UE and the GGSN when a direct tunnel is not used?

A. A Radio Access Bearer between the UE and the NodeB, a GTP tunnel between the NodeB and the SGSN, and another GTP tunnel between the SGSN and the GGSN.

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

C. A GTP tunnel between the UE and the GGSN.

D. A Radio Access Bearer between the UE and the RNC, a GTP tunnel between the RNC and the SGSN, and another GTP tunnel between the SGSN and the GGSN.

E. None of the above answers are correct.

Which of the following statements is TRUE when the Alcatel-Lucent 7750 MG receives a GTP packet that has a valid TEID?

A. The ingress IOM forwards the packet directly to the MG-ISM module for further processing.

B. The ingress IOM drops the packet.

C. The ingress IOM forwards the packet to the CPM for further processing.

D. The Alcatel-Lucent 7750 MG forwards the packet to its IP destination by looking into the local IP routing table.

E. None of the above answers are correct.

Based on the information shown in the exhibit, which of the following is TRUE when the PGW receives a "Create Session Request" with the "APN Restriction" set to "Private1"? Assume everything else is in working condition.

A. The "Create Session Request" is rejected by the PGW and no bearer is created.

B. The "Create Session Request" is accepted by the PGW and the bearer is created successfully.

C. The APN cannot be configured with an "APN Restriction" value of "Private1".

D. The "Create Session Request" cannot have an "APN Restriction" value of "Private1".

E. None of the above answers are correct.

Which of the following resources are freed when a registered UE goes idle? (Choose 2)

A. S1-MME signaling connection

B. S11GTP-C tunnel

C. S1 GTP-U tunnel

D. S5 GTP-C tunnel

E. S5 GTP-U tunnel

On Alcatel-Lucent 7750 PGW, which of the following CLI commands can be used to debug a given IMSI?

A. debug mobile-gateway pdn 1 pdn-session imsi 226041000000008

B. debug mobile-gateway pdn 1 pdn-session-db imsi 226041000000008

C. debug mobile-gateway pdn 1 pdn-session imsi 226041000000008 apn ipd.alcatel-lucent.com

D. debug mobile-gateway pdn 1 pdn-session-db imsi 226041000000008 apn ipd.alcatel-lucent.com

E. Answers A and C are both correct.

F. Answers B and D are both correct.

On Alcatel-Lucent 7750 SGW, which of the following CLI commands is used to obtain the output displayed in the exhibit?

A. show mobile-gateway serving ref-point-stats s11

B. show mobile-gateway serving ref-point-stats s5

C. show mobile-gateway serving ref-point-peers s11

D. show mobile-gateway serving ref-point-peers s5

Which of the following statements most accurately describes the EPS bearers?

A. A UE can have only one default bearer.

B. A UE may have more than one dedicated bearer.

C. Each EPS bearer may provide different QoS treatment for its traffic.

D. EPS bearers that connect a given UE to a single APN use different IP subnets.

E. Only answers A, B and C are correct.

F. Only answers B and C are correct.

On the Alcatel-Lucent 7750 PGW, which of the following CLI commands Is used to check the APN-AMBR enforced on the PGW for a particular UE?

A. Show mobile-gateway pdn pdn-context

B. Show mobile-gateway pdn pdn-context imsi detail

C. Show mobile-gateway pdn bearer-context

D. Show mobile-gateway pdn bearer-context imsi detail

E. Show mobile-gateway pdn ue-context

F. Show mobile-gateway pdn ue-context imsi detail

Which network entities assign TEIDs to the indirect data tunnel used during an S1-based handover with SGW relocation?

A. The source eNodeB, the source SGW, and the target SGW

B. The source SGW, the target SGW and the target eNodeB.

C. The source eNodeB, the target SGW, and the target eNodeB.

D. The source eNodeB, the source SGW and the target eNodeB.

E. The source SGW and the target SGW.

Which of the following statements is FALSE regarding the UE attachment procedure?

A. As a result of this procedure, a default bearer must be established

B. As a result of this procedure, a dedicated bearer must be established

C. As a result of this procedure, the UE is registered with the network

D. As a result of this procedure, the UE is authenticated by the network

E. As a result of this procedure, the UE has an IP connectivity to an APN