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4A0-M02 Questions and Answers

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4A0-M02 Questions and Answers

Question # 6

Based on the information shown in the exhibit, when the SGW sends a downlink user data packet to the UE, which of the following is the source IP address expected in the IP packet?

A.

10.10.2.1

B.

10.10.7.1

C.

20.20.0.1

D.

72.22.24.163

E.

None of the above answers are correct

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Question # 7

Based on the information shown in the exhibit, what type of handover is performed when the UE moves from eNodeB2 to eNodeB4?

A.

X2-based handover without SGW relocation

B.

X2-based handover with SGW relocation

C.

X2-based handover with MME relocation

D.

S1-based handover with SGW relocation

E.

S1-based handover with MME relocation

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Question # 8

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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Question # 9

Which of the following interfaces is not using the GTP-C protocol?

A.

TheS11 interface

B.

The S1-MME interface

C.

The S10 interface

D.

The S5 interface

E.

The S8 interface

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Question # 10

Which of the following statements is TRUE when a registered UE goes idle?

A.

All UE resources are freed on the MME.

B.

All UE resources are freed on the eNodeB.

C.

All UE resources are freed on the SGW.

D.

The UE triggers the S1 Release procedure

E.

None of the above statements are true.

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Question # 11

Based on the information shown in the exhibit, which procedure has been executed on the SGW?

A.

UE Triggered Service Request procedure

B.

Network Triggered Service Request procedure

C.

UE Initiated Dedicated Bearer Activation procedure

D.

Network Initiated Dedicated Bearer Activation procedure

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Question # 12

Which of the following statements is FALSE regarding the UE paging process?

A.

The SGW performs downlink data buffering while the S1 bearer is being established.

B.

The SGW initiates the paging messages towards the UE.

C.

The PGW is not aware of the paging process.

D.

The UE initiates the service request procedure once it receives the paging message.

E.

The paging procedure is controlled by the MME.

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Question # 13

Which of the following statements are TRUE regarding the Dynamic PCC rules? (Choose two)

A.

The Dynamic PCC rules are created on the PCRF and pushed (or pulled) down to the PCEF.

B.

The Dynamic PCC rules are created on the PCEF and pushed (or pulled) down to the PCRF.

C.

When GTP tunnels are used between the SGW and PGW, the Gxc interface is used between the PCRF and the PCEF to carry the dynamic PCC rules.

D.

When GTP tunnels are used between the SGW and PGW, the Rx interface is used between the PCRF and the PCEF to carry the dynamic PCC rules.

E.

When GTP tunnels are used between the SGW and PGW, the Gx interface is used between the PCRF and the PCEF to carry the dynamic PCC rules.

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Question # 14

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.

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Question # 15

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.

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Question # 16

Which of the following statements is FALSE regarding the Network Initiated Dedicated Bearer Activation procedure?

A.

A Create Bearer Request message is sent from PGW to SGW.

B.

An AA Request message is sent from AF to PCRF.

C.

A Bearer Setup Request message is sent from SGW to MME.

D.

A Re-Authorization Request message is sent from PCRF to PGW.

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Question # 17

Which of the following statements is FALSE regarding the configuration of Key Performance Indicator/Key Capacity Indicator (KPI/KCI) on an Nokia 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.

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Question # 18

Which of the following statements is FALSE regarding Key Performance Indicator/Key Capacity Indicator (KPI/KCI)?

A.

KPI /KCI counters are supported on both Nokia 7750 SGW and 7750 PGW.

B.

The cf:\mob-gw-stats directory contains the current records.

C.

The cf:\mob-gw directory contains all closed records.

D.

KPI/KCI counters are used to debug real-time issues on the mobile gateway.

E.

An XML file is created and stored in the CPM's flash card.

F.

None of the above statements are false.

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Question # 19

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

A.

The collection interval is set to 30 minutes.

B.

The number of active bearers at the end of this interval is 307

C.

The stats are collected from MG-ISM card 5.

D.

The number of idle users at the end of this interval is 10

E.

None of the above statements are false.

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Question # 20

Which of the following statements most accurately describes the MME?

A.

The MME selects the SGW and the PGW for a given UE.

B.

The MME is responsible for the bearer management.

C.

The MME communicates with both the E-UTRAN and the EPC via GTP-C tunnels.

D.

The MME performs the user authentication and authorization using the information provided by the HSS

E.

All of the above answers are correct.

F.

Only answers A, B and D are correct.

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Question # 21

Based on the information shown in the exhibit, what is the TEID value 0xd06015 used for?

A.

This TEID value is used by the source eNodeB when sending uplink data traffic to the SGW.

B.

This TEID value is used by the target eNodeB when sending uplink data traffic to the SGW.

C.

This TEID value is used by the source eNodeB when sending downlink data traffic back to the SGW.

D.

This TEID value is used by the SGW when sending downlink data traffic to the source eNodeB.

E.

This TEID value is used by the SGW when sending downlink data traffic to the target eNodeB.

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