Nokia Nokia Certifications 4A0-M02 Questions & Answers

• Question 111:

  During the establishment of a default bearer, which of the following statements are TRUE regarding the TEID-U assigned by the eNodeB to the S1-U tunnel? (Choose two)

  A. The eNodeB includes this TEID-U value in the Create Session Request message sent to the SGW over the S1 interface.

  B. The eNodeB includes this TEID-U value in the Attach Request message sent to the MME over the S1MME interface.

  C. The MME includes this TEID-U value in the Create Session Request message sent to the SGW over the S11 interface.

  D. The MME includes this TEID-U value in the Modify Bearer Request message sent to the SGW over the S11 interface.

  E. The eNodeB includes this TEID-U value in the Attach Complete message sent to the MME over the S1MME interface.

  F. The eNodeB includes this TEID-U value in the Modify Bearer Request message sent to the SGW over the S1 interface.

  Correct Answer: DE

• Question 112:

  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 "Private2"? 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 "any".

  D. The "Create Session Request" cannot have an "APN Restriction" value of "Private2.

  E. None of the above answers are correct.

  Correct Answer: B

• Question 113:

  On the Alcatel-Lucent 7750 PGW, which of the following is the default setting of the APN "selectionmode"?

  A. ms-provided-apn

  B. network-provided-apn

  C. subscribed-apn

  D. virtual-apn

  E. None of the above answers are correct

  Correct Answer: C

• Question 114:

  Which of the following messages are exchanged between the MME and the SGW during the UE attachment procedure? (Choose two)

  A. Create Session Request / Create Session Response

  B. Credit Control Request / Credit Control Answer

  C. Attach Request/Attach Accept

  D. Update Bearer Request / Update Bearer Response

  E. Modify Bearer Request / Modify Bearer Response

  Correct Answer: AE

• Question 115:

  Based on the information shown in the exhibit, which of the following is the time interval used by the SGW to send out an "Echo Request" message over the GTP interface?

  

  A. 3 seconds

  B. 5 seconds

  C. 6 seconds

  D. 60 seconds

  E. 90 seconds

  Correct Answer: D

• Question 116:

  On an Alcatel-Lucent 7750 PGW, which of the following is the CLI context where you can specify the IP address and port number of a PCRF server?

  A. Under the Diameter profile context.

  B. Under the Diameter Peer profile context.

  C. Under the Gx interface context.

  D. Under the APN context.

  E. None of the above answers are correct.

  Correct Answer: B

• Question 117:

  Based on the information shown in the exhibit, which of the following is TRUE when the PGW receives a "Create Session Request" with the "PDNTYPE" set to IPv4?

  

  A. The PGW tries to allocate an IP address from the subnet "5.5.0.0/16" and assigns it to the UE.

  B. The PGW tries to allocate an IP address from the subnet "3FFE::/48" and assigns it to the UE.

  C. The "Create Session Request" is rejected by the PGW.

  D. There is insufficient information to answer this question.

  Correct Answer: C

• Question 118:

  Which of the following statements is FALSE regarding the S1-MME interface?

  A. It is the control plane interface between the E-UTRAN and the MME.

  B. It is used to signal the TEIDs for the S1 bearers between the eNodeB and the SGW.

  C. The eNodeB receives the Paging messages over the S1-MME interface.

  D. It is used for the management of the Radio Access Bearers.

  E. It is based on the IP/UDP protocols.

  Correct Answer: E

• Question 119:

  Which of the following statements is TRUE when the Alcatel-Lucent 7750 MG receives a GTP packet that has a zero 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.

  Correct Answer: C

• Question 120:

  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

  Correct Answer: B