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4A0-M03 Nokia Mobility Manager
Question NO.1 Which of the following statements regarding the role of the MME in the packet core is FALSE? A. MME manages registration, authentication, and mobility for the UE. B. MME handles setup and management of UE connections to data and voice over LTE. C. MME routes and forwards user data packets received from eNodeB. D. MME selects the appropriate SGW and PGW during a UE relocation. Answer: C
Question NO.2 Which of the following is a Diameter interface connected to the MME? A. S1-MME B. S11 C. Gx D. SLg Answer: B
Question NO.3 If the selected SGW fails, which SGW/PGW will MME select if ‘gateway selection mode 2’ is used? A. A new SGW, but new PGW selection is not required B. A new SGW first, then select a new PGW that is topologically closest to the newly selected SGW C. A new SGW first, then select a new PGW with the best order and preference values D. The next topologically closest SGW/PGW pair Answer: A
Question NO.4 Which of the following statements regarding SGW pools and SGW service areas is FALSE? A. An SGW service area is served by one or more SGW pools. B. A UE can move within an SGW service area without changing the serving SGW. C. A tracking area can belong to one or more SGW service areas. D. An SGW can be a member of one or more SGW pools. Answer: D
Question NO.5 Which of the following statements best defines S-TMSI? A. A permanent, unique identification of a mobile subscriber in the GSM/UMTS/EPS system. B. A network that provides mobile communication services to the public. C. A globally unique temporary mobile identifier used to hide the subscriber's real permanent identity. D. An identifier assigned by the MME that uniquely identifies a UE within an MME pool. Answer: C
Question NO.6 Which of the following statements regarding a tracking area list (TA list) is TRUE? A. The location of an idle UE is known by the network at an eNodeB granularity. B. The location of an active UE is known by the network at a TA list granularity. C. All the tracking areas in a TA list are served by the same MME. D. A tracking area list is a logical set of MMEs. Answer: B
Question NO.7 Which of the following MME interfaces uses a protocol OTHER than GTP-C or Diameter? A. S1-MME B. S11 C. S6a D. SLg Answer: A
Question NO.8 Which of the following is NOT a benefit of S1-Flex mechanism? A. Minimizes MME relocation in case of UE mobility B. Minimizes the number of MMEs required in a network C. Provides MME load balancing D. Provides MME geographical resilience Answer: D
Question NO.9 Which of the following statements regarding an EPS dedicated bearer is FALSE? A. A dedicated bearer is any EPS bearer to a PDN that is already connected to the UE. B. A dedicated bearer can be either a GBR or non-GBR bearer. C. A dedicated bearer remains active as long as the UE is attached to EPS. D. A dedicated bearer uses the same IP address that was allocated for the associated default bearer. Answer: B
Question NO.10 Which of the following statements regarding GTP-C is FALSE? A. GTP-C is a tunneling protocol. B. GTP-C runs over UDP/IP. C. GTP-C is the control plane part of GTP. D. GTP-C messages carry Attribute Value Pairs (AVPs). Answer: C