4A0-M02 Online Practice Questions and Answers

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.

Based on the information shown in the exhibit, what is the action taken by the SGW when:

-

The SGW receives a GTP packet over its S5 interface, and

-

The TEID value in the GTP header is set to 0xd06c05?

A.

The packet is forwarded to the eNodeB.

B.

The packet is buffered.

C.

The packet is dropped.

D.

The packet is forwarded to the MME.

Which network entities assign TEIDs to the indirect data tunnel used during an S1-based handover with no SGW relocation?

A. The source eNodeB and the SGW.

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

C. The SGW and the target eNodeB.

D. The source eNodeB and the target eNodeB.

Which of the following does not apply during the CPM selection of an MG-ISM card?

A. The CPM load balances amongst all configured MG-ISM groups.

B. The CPM load balances based on the number of sessions currently handled by each MG-ISM group

C. All sessions established for a given UE are handled by the same MG-ISM group.

D. The selected MG-ISM card is responsible for bearer management and TEID assignment.

E. All of the above statements apply.

Which of the following is used to carry the GTP Path Management message "Echo Request"?

A. TheGTPv1 protocol.

B. The GTPv2 protocol.

C. The TCP protocol.

D. TheGTPv1 protocol or the GTPv2 protocol.

E. None of the above answers are correct.

Based on the information shown in the exhibit, which of the following is the time interval used by the SGW to retransmit a GTP signaling message?

A. 3 seconds

B. 5 seconds

C. 6 seconds

D. 60 seconds

E. 90 seconds

After a UE attachment procedure, which GTP-U tunnels are established for the UE?

A. S1-MME GTP-U tunnel and S5 GTP-U tunnel.

B. S1-U GTP-U tunnel and S5 GTP-U tunnel.

C. S1-U GTP-U tunnel. S5 GTP-U tunnel, and Gx GTP-U tunnel.

D. S1-U GTP-U tunnel and Gx GTP-U tunnel.

E. No GTP-U tunnels are established.

On an Alcatel-Lucent 7750 MG, which of the following best describes the protect-active-delay timer configured for an MG-ISM group?

A. This timer indicates the time that the working card waits before it declares itself active after a node restart.

B. This timer indicates the time that the protection card waits before it declares itself active during an MGISM switchover.

C. This timer indicates the time that the working card waits before it declares itself active after an MG-ISM switchover to the protection card has been performed.

D. This timer indicates the time that the protection card waits before it declares itself active if the working card does not come up after a node restart.

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.

What is the purpose of indirect data tunnels established for a particular UE?

A. The indirect data tunnels are used during handovers to forward downlink data from the target eNodeB to the source eNodeB.

B. The indirect data tunnels are used during handovers to forward uplink data from the target eNodeB to the source eNodeB.

C. The indirect data tunnels are used during handovers to forward downlink data from the source eNodeB to the target eNodeB.

D. The indirect data tunnels are used during handovers to forward uplink data from the source eNodeB to the target eNodeB.