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Q73. After a UE attachment procedure, which GTP-C tunnels are established for the UE? 

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. 

Answer: C 


Q74. A dedicated bearer 6 has a total of six SDF filters. Based on the information shown in the exhibit, which of the following is the right order to apply the filters to the downlink traffic? 

A. The filters: 0 (first), 1, 2, 3, 4, 5 (last). 

B. The filters: 2 (first), 3, 0, 1, 4, 5 (last). 

C. The filters: 0 (first), 2, 4 (last). 

D. The filters: 3 (first), 5, 1 (last). 

E. The filters: 0 (first), 4, 2 (last). 

F. The filters: 2 (first), 4, 0 (last). 

Answer: F 


Q75. The S5 is the interface used for the communication between the SGW and the PGW. Which of the following transport protocols is used by this interface? 

A. GTP/TCP 

B. GTP/UDP 

C. GTP/IP 

D. GTP/SCTP 

E. None of the above answers are correct 

Answer: B 


Q76. 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 

Answer: E 


Q77. On Alcatel-Lucent 7750 SGW, which of the following CLI commands is used to obtain the output displayed in the exhibit? 

A. show mobile-gateway serving ref-point-stats s11 

B. show mobile-gateway serving ref-point-stats s5 

C. show mobile-gateway serving ref-point-peers s11 

D. show mobile-gateway serving ref-point-peers s5 

Answer: A 


Q78. 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. 

Answer: B 


Q79. 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. 

Answer: C 


Q80. On Alcatel-Lucent 7750 SGW, which of the following CLI commands can be used to check the TEID-U values assigned to an EPS bearer for a particular UE? 

A. Show mobile-gateway serving pdn-context 

B. Show mobile-gateway serving pdn-context imsi <imsi-number> detail 

C. Show mobile-gateway serving ue-context 

D. Show mobile-gateway serving ue-context imsi <imsi-number> detail 

E. Show mobile-gateway serving bearer-context 

F. Show mobile-gateway serving bearer-context imsi <imsi-number> detail 

Answer: F