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Nokia 4A0-M02 Nokia Mobile Gateways for the LTE Evolved Packet Core Exam Practice Test

Demo: 21 questions
Total 140 questions
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Nokia Mobile Gateways for the LTE Evolved Packet Core Questions and Answers

Question 1

On the Nokia 7750 PGW, which of the following is the CLI command to check the statistics of the "Create Session Request" / "Create Session Response" messages?

Options:

A.

Show mobile-gateway pdn ref-point-peers gx

B.

Show mobile-gateway pdn ref-point-peers s5

C.

Show mobile-gateway pdn ref-point-stats ga

D.

Show mobile-gateway pdn ref-point-stats s5

E.

None of the above answers are correct.

Question 2

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

Options:

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.

Question 3

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

Options:

A.

TheS11 interface

B.

The S1-MME interface

C.

The S10 interface

D.

The S5 interface

E.

The S8 interface

Question 4

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

Options:

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.

Question 5

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?

Options:

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.

Question 6

On the Nokia 7750 SGW, which of the following is the CLI command to check the "UP / IDLE" state for the GTP path to a PGW?

Options:

A.

Show mobile-gateway serving ref-point-peers s5

B.

Show mobile-gateway serving ref-point-stats s5

C.

Show mobile-gateway serving ref-point-peers s1u

D.

Show mobile-gateway serving path-mgmt s5

E.

None of the above answers are correct.

Question 7

During a UE detach procedure, which commands are exchanged over the gx interface?

Options:

A.

Delete Session Request / Delete Session Answer

B.

Credit Control Request Terminate/Credit Control Answer Terminate

C.

Release Session Request / Release Session Answer

D.

Credit Control Request Release / Credit Control Answer Release

Question 8

On Nokia 7750 SGW, which of the following CLI commands can be used to check the connectivity to the GTP peer?

Options:

A.

oam gtp-ping s5c destination 10.10.7.2 port 2122 gateway 1

B.

oam gtp-ping s5c destination 10.10.7.2 port 2123 gateway 1

C.

oam gtp-ping s5u destination 10.10.7.2 port 2153 gateway 1

D.

oam gtp-ping s5u destination 10.10.7.2 port 2154 gateway 1

E.

Answers B and D are both correct.

Question 9

Which of the following statements is FALSE regarding the service request procedure?

Options:

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.

Question 10

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

Options:

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

Question 11

On Nokia 7750 SGW, which of the following CLI commands can be used to check the number of times a handover procedure has been performed for a particular UE?

Options:

A.

Show mobile-gateway serving call-flow-stats

B.

Show mobile-gateway serving pdn-context imsi detail

C.

Show mobile-gateway serving ue-context imsi detail

D.

Show mobile-gateway serving bearer-context imsi detail

E.

Show mobile-gateway serving ref-point-stats s11

Question 12

Which of the following statements most accurately describes the MME?

Options:

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.

Question 13

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

Options:

A.

An EPS bearer is either a GBR bearer or a Non-GBR bearer.

B.

An EPS bearer is either a default bearer or a dedicated bearer.

C.

A dedicated bearer can be a GBR or a Non-GBR bearer.

D.

A default bearer can be a GBR or a Non-GBR bearer.

E.

A UE can have multiple GBR or Non-GBR bearers.

Question 14

In a 3G network, which of the following is used to build a PDP context between a UE and the GGSN when a direct tunnel is not used?

Options:

A.

An end-to-end GTP tunnel between the UE and the GGSN.

B.

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

C.

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

D.

A Radio Access Bearer between the UE and the SGSN.

E.

None of the above answers are correct.

Question 15

A PGW may use various methods to assign an IP address to a UE. Which of the following methods is supported on Nokia 7750 PGW? (Choose the best answer)

Options:

A.

local-pool

B.

hss-static

C.

Radius / Diameter server.

D.

PCRF server

E.

All of the above answers are correct

F.

Only answers A, B and C are correct

Question 16

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

Options:

A.

S1-MME GTP-C tunnel, S11 GTP-C tunnel, and S5 GTP-C tunnel.

B.

S11 GTP-C tunnel and Gx GTP-C tunnel.

C.

S11 GTP-C tunnel and S5 GTP-C tunnel.

D.

S5 GTP-C tunnel and Gx GTP-C tunnel.

E.

S11 GTP-C tunnel, S5 GTP-C tunnel, and Gx GTP-C tunnel.

Question 17

Which of the following parameters best describes the rate-limiting associated with a Non-GBR bearer?

Options:

A.

The GBR and the MBR

B.

The APN-AMBR

C.

The MBR

D.

The UE-AMBR

E.

The APN-AMBR and the UE-AMBR

Question 18

Which of the following messages are exchanged between the PGW and the PCRF during the UE attachment procedure?

Options:

A.

Authorization Control Request/ Authorization Control Answer

B.

Credit Control Request / Credit Control Answer

C.

Create Session Request/ Create Session Answer

D.

Attach Request/Attach Answer

Question 19

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

Options:

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.

Question 20

Based on the information shown in the exhibit, how many mobile subscribers is the PGW currently serving?

Options:

A.

1

B.

2

C.

3

D.

5

E.

6

F.

Unable to determine based on the provided information.

Question 21

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

Options:

A.

1

B.

2

C.

3

D.

4

E.

6

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Demo: 21 questions
Total 140 questions
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