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Q65. Which of the following statements is TRUE when a UE is in the EMM_REGISTERED/ECM_IDLE state? 

A. There is no radio bearer between the UE and the eNodeB. The S1-MME, S1-U, and S5 connections are all released for the UE. 

B. There is no radio bearer between the UE and the eNodeB. The S1-MME connection can no longer be used but the S1-U and S5 connections are still available for the UE. 

C. There is no radio bearer between the UE and the eNodeB. The S1-MME and the S1-U connections can no longer be used but the S5 connection is still available for the UE. 

D. There is no radio bearer between the UE and the eNodeB. The S1-MME, S1-U and S5 connections are still available for the UE. 

E. None of the above answers are correct. 

Answer: C 


Q66. In a 3G network, which of the following statements most accurately describes the user data plane between a UE and the GGSN when a direct tunnel is not used? 

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

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

C. A GTP tunnel between the UE and the GGSN. 

D. A Radio Access Bearer between the UE and the RNC, a GTP tunnel between the RNC and the SGSN, and another GTP tunnel between the SGSN and the GGSN. 

E. None of the above answers are correct. 

Answer: B 


Q67. 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. 

Answer: A 


Q68. Which of the following statements is FALSE regarding the S1-based handover? 

A. The SGW may be relocated. 

B. The MME may be relocated. 

C. Direct data forwarding via the X2 interface may be used. 

D. Indirect data forwarding via the SGW may be used. 

E. None of the above statements are false. 

Answer: E 


Q69. 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. 

Answer: A,E 


Q70. A UE is sending best-effort (BE) IP traffic to a PDN server over the EPC core. Based on the information shown in the exhibit, what is the DSCP value of traffic egressing the SGi interface of the PGW to the PDN server? 

A. BE 

B. EF 

C. AF21 

D. NC 

E. None of the above answers are correct. 

Answer: A 


Q71. On the Alcatel-Lucent 7750 PGW, which of the following CLI commands is used to check the contents of the SDF filters enforced on the PGW for a particular UE? 

A. Show mobile-gateway pdn pdn-context 

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

C. Show mobile-gateway pdn bearer-context 

D. Show mobile-gateway pdn bearer-context imsi <imsi-number> detail 

E. Show mobile-gateway pdn ue-context 

F. Show mobile-gateway pdn ue-context imsi <imsi-number> detail 

Answer: D 


Q72. Which of the following statements is FALSE regarding the UE attachment procedure? 

A. As a result of this procedure, a default bearer must be established 

B. As a result of this procedure, a dedicated bearer must be established 

C. As a result of this procedure, the UE is registered with the network 

D. As a result of this procedure, the UE is authenticated by the network 

E. As a result of this procedure, the UE has an IP connectivity to an APN 

Answer: B