Free 4A0-M02 Exam Dumps PDF Preview

Question 1

Single choice

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.

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Correct answerA

Question 2

Single choice

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.

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Correct answerF

Question 3

Single choice

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.

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Correct answerD

Question 4

Single choice

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.

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Correct answerE

Question 5

Single choice

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.

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Correct answerA

Question 6

Single choice

When a UE is roaming, which of the following interfaces is used when the visiting SGW needs to communicate with the UE's home PGW?

A
TheS1 interface.
B
The S5 interface.
C
The S8 interface.
D
The S10 interface.
E
The SGi interface.

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Correct answerC

Question 7

Single choice

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.

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Correct answerE

Question 8

Multiple choice

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

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Correct answersD, E

Question 9

Multiple choice

Which of the following statements are FALSE regarding the SGW? (Choose two)

A
The SGW is connected to the E-UTRAN via the S1-u interface.
B
At a given time, a single SGW handles all the connections for a given UE.
C
The SGW provides downlink data buffering and paging for an idle UE.
D
The SGW can connect to only one PGW.
E
The SGW acts as a common anchor point during handovers between LTE and Release 8 UMTS networks.
F
The SGW may provide data plane connectivity between two eNodeBs.

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Correct answersC, D

Question 10

Single choice

A UE needs to get an IP address before it can communicate to any PDN over the LTE network.

Which of the following statements most accurately describes the process of the IP address allocation?

A
A UE may obtain an IP address during the PDN connection setup.
B
A PGW may assign the IP address from its local address pools.
C
A PGW may obtain an IP address from a RADIUS server and assign it to the UE.
D
A PGW may obtain an IP address from a DHCP server and assign it to the UE.
E
All of the above answers are correct.

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Correct answerE

Question 11

Single choice

There is an active GTP path between an Alcatel-Lucent SGW and an Alcatel-Lucent PGW, On the SGW.

Which of the following CLI commands is used to check the "Restart Count" value of the PGW?

A
show mobile-gateway serving ref-point-peers s5
B
show mobile-gateway serving ref-point-stats s5
C
show mobile-gateway serving bearer-stats s5
D
show mobile-gateway serving path-mgmt-stats s5
E
None of the above answers are correct.

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Correct answerD

Question 12

Single choice

On the Alcatel-Lucent 7750 PGW, which of the following CLI commands is used to check the message statistics between the PGW and the PCRF?

A
Show mobile-gateway pdn pdn-context
B
Show mobile-gateway pdn ref-point-stats ga
C
Show mobile-gateway pdn ref-point-stats gx
D
Show mobile-gateway pdn ref-point-peers gn
E
Show mobile-gateway pdn ref-point-peers gx

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Correct answerC

Question 13

Single choice

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.

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Correct answerC

Question 14

Single choice

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

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Correct answerB

Question 15

Single choice

The S1-MME is the interface used for the communication between the eNodeB and the MME.

Which of the following transport protocols is used by this interface?

A
The Transmission Control Protocol (TCP)
B
The User Datagram Protocol (UDP)
C
The TCP or the UDP
D
The Stream Control Transmission Protocol (SCTP)
E
None of the above answers are correct

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Correct answerD

Question 16

Single choice

Which of the following statements is FALSE regarding the EPS bearers?

A
The default bearer is initiated by either the UE or the PCRF.
B
The default bearer is always the first bearer established to an APN.
C
An AF server may initiate a dedicated bearer to a UE.
D
EPS bearers that connect a given UE to a single PGW may use different IP subnets.
E
The default bearer remains active throughout the lifetime of the APN connection.

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Correct answerA

Question 17

Single choice

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

A
The UE is served by an eNodeB.
B
The eNodeB selects one MME to serve the UE.
C
The MME selects one SGW to serve the UE.
D
The SGW selects one PGW to serve the UE
E
The PGW selects one PCRF server if required.

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Correct answerD

Question 18

Single choice

On the Alcatel-Lucent 7750 MG, which of the following is the CLI command to check the active / standby state of the MG-ISM cards?

A
Show card detail
B
Show mda detail
C
Show card state
D
Show system information
E
Show mobile-gateway system

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Correct answerE

Question 19

Single choice

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.

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Correct answerC

Question 20

Single choice

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.

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Correct answerA

Question 21

Single choice

How many S11 GTP-C tunnels are established for a UE having:

- One default bearer to APN1, and
- One dedicated bearer to APN1, and
- One default bearer to APN2, and
- Two dedicated bearers to APN2?

A
One
B
Two
C
Three
D
Four
E
Five

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Correct answerA

Free 4A0-M02 Exam Dumps Preview

Alcatel-Lucent Mobile Gateways for the LTE Evolved Packet Core

PREVIEW CONTENTS · 2 VOLUMES

QUESTION 1

QUESTION 2

QUESTION 3

QUESTION 4

QUESTION 5

QUESTION 6

QUESTION 7

QUESTION 8

QUESTION 9

QUESTION 10

QUESTION 11

QUESTION 12

QUESTION 13

QUESTION 14

QUESTION 15

QUESTION 16

QUESTION 17

QUESTION 18

QUESTION 19

QUESTION 20

QUESTION 21

VOL	TYPE	QUESTIONS
1	Single choice	19
2	Multiple choice	2