Question 1

Which of the following statements best defines S-TMSI?

Accepted Answer

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. 
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. C

Question 2

Which of the following statements regarding handover is FALSE?

Accepted Answer

A)  Handover can occur when UE is in ECM-CONNECTED state 
B)  S1-based handover is used when X2-based handover attempt failed 
C)  During X2-based handover, MME may remain the same or be relocated 
D)  S1-based handover is used when there is no X2 interface between source and target eNodeBs 
A)  Handover can occur when UE is in ECM-CONNECTED state 
B)  S1-based handover is used when X2-based handover attempt failed 
C)  During X2-based handover, MME may remain the same or be relocated 
D)  S1-based handover is used when there is no X2 interface between source and target eNodeBs C

Question 3

Which of the following statements regarding the role of the MME in the packet core is FALSE?

Accepted Answer

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. 
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. C

Question 4

Which of the following is NOT performed by the MME during S1-based handover procedure?

Accepted Answer

A)  MME determines if SGW relocation is required. 
B)  MME selects the target eNodeB for handover. 
C)  MME releases bearers that are not accepted by the target eNodeB. 
D)  MME checks if the handover is to restricted area based on the handover restriction list. 
A)  MME determines if SGW relocation is required. 
B)  MME selects the target eNodeB for handover. 
C)  MME releases bearers that are not accepted by the target eNodeB. 
D)  MME checks if the handover is to restricted area based on the handover restriction list.

Question 5

Which of the following is NOT performed by the MME during a TAU procedure?

Accepted Answer

A)  MME sends paging messages to a list of eNodeBs. 
B)  MME informs the HSS about the UE's current location. 
C)  MME sends the UE a new TA list containing the new TAIs. 
D)  MME determines if SGW relocation is required and selects a new SGW. 
A)  MME sends paging messages to a list of eNodeBs. 
B)  MME informs the HSS about the UE's current location. 
C)  MME sends the UE a new TA list containing the new TAIs. 
D)  MME determines if SGW relocation is required and selects a new SGW.

Question 6

Which of the following is NOT a benefit of S1-Flex mechanism?

Accepted Answer

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 
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

Question 7

Which logical interface is used to transfer UE information from one MME to another MME during relocation?

Accepted Answer

A)  S10 
B)  S3 
C)  S6a 
D)  S13 
A)  S10 
B)  S3 
C)  S6a 
D)  S13

Question 8

Given the exhibit, if GTP-C load control is used, which SGW will have the highest probability of being selected by the MME for new session requests?

Accepted Answer

A)  sgw01 
B)  sgw02 
C)  sgw03 
D)  sgw04 
A)  sgw01 
B)  sgw02 
C)  sgw03 
D)  sgw04

Question 9

Which of the following statements regarding the SMC procedure is FALSE?

Accepted Answer

A)  SMC procedure must be completed successfully before AKA procedure starts. 
B)  MME sends a security mode command message to the UE. 
C)  UE responds with a security mode complete message. 
D)  SMC procedure is used to provide NAS signaling security between the UE and the MME. 
A)  SMC procedure must be completed successfully before AKA procedure starts. 
B)  MME sends a security mode command message to the UE. 
C)  UE responds with a security mode complete message. 
D)  SMC procedure is used to provide NAS signaling security between the UE and the MME.

Question 10

If the selected SGW fails, which SGW/PGW will MME select if 'gateway selection mode 2' is used?

Accepted Answer

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 
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

Question 11

Which of the following MME interfaces uses a protocol OTHER than GTP-C or Diameter?

Accepted Answer

A)  S1-MME 
B)  S11 
C)  S6a 
D)  SLg 
A)  S1-MME 
B)  S11 
C)  S6a 
D)  SLg

Question 12

Which of the following is NOT a characteristic of the home routed roaming architecture?

Accepted Answer

A)  Bearer traffic is routed from the SGW to the PGW over the S5 interface 
B)  The UE bearers are anchored at the SGW to the VPLMN 
C)  Subscriber services are obtained through the HPLMN 
D)  The MME in the VPLMN has an S6a interface to the HSS in the HPLMN 
A)  Bearer traffic is routed from the SGW to the PGW over the S5 interface 
B)  The UE bearers are anchored at the SGW to the VPLMN 
C)  Subscriber services are obtained through the HPLMN 
D)  The MME in the VPLMN has an S6a interface to the HSS in the HPLMN

Question 13

Which of the following statements regarding SGW selection by the MME is FALSE?

Accepted Answer

A)  SGW selection can occur during initial attach, tracking area update, or handover procedures 
B)  MME can select an SGW by performing a DNS query on a given TAI FQDN 
C)  MME can select an SGW based on the overload control information received from each SGW in the SGW pool 
D)  MME can select an SGW from the SGW pool(s) configured to serve the given TAI 
A)  SGW selection can occur during initial attach, tracking area update, or handover procedures 
B)  MME can select an SGW by performing a DNS query on a given TAI FQDN 
C)  MME can select an SGW based on the overload control information received from each SGW in the SGW pool 
D)  MME can select an SGW from the SGW pool(s) configured to serve the given TAI

Question 14

What network component(s) is/are shared in the gateway core network (GWCN) sharing architecture model?

Accepted Answer

A)  Only E-UTRAN is shared 
B)  Only MME is shared 
C)  E-UTRAN and MME are shared 
D)  MME and PGW are shared 
A)  Only E-UTRAN is shared 
B)  Only MME is shared 
C)  E-UTRAN and MME are shared 
D)  MME and PGW are shared

Question 15

Which of the following functions is NOT performed by MME when it receives a TAU from a UE?

Accepted Answer

A)  Perform message integrity check 
B)  Inform HSS of the UE's current location 
C)  Check if UE requests access to a restricted tracking area 
D)  Send paging message to a list of SGWs belonging to UE's registered tracking area 
A)  Perform message integrity check 
B)  Inform HSS of the UE's current location 
C)  Check if UE requests access to a restricted tracking area 
D)  Send paging message to a list of SGWs belonging to UE's registered tracking area

Which of the following statements best defines S-TMSI?

Which of the following statements regarding handover is FALSE?

Which of the following statements regarding the role of the MME in the packet core is FALSE?

Which of the following is NOT performed by the MME during S1-based handover procedure?

Which of the following is NOT performed by the MME during a TAU procedure?

Which of the following is NOT a benefit of S1-Flex mechanism?

Which logical interface is used to transfer UE information from one MME to another MME during relocation?

Given the exhibit, if GTP-C load control is used, which SGW will have the highest probability of being selected by the MME for new session requests?

Which of the following statements regarding the SMC procedure is FALSE?

If the selected SGW fails, which SGW/PGW will MME select if 'gateway selection mode 2' is used?

Which of the following MME interfaces uses a protocol OTHER than GTP-C or Diameter?

Which of the following is NOT a characteristic of the home routed roaming architecture?

Which of the following statements regarding SGW selection by the MME is FALSE?

What network component(s) is/are shared in the gateway core network (GWCN) sharing architecture model?

Which of the following functions is NOT performed by MME when it receives a TAU from a UE?

Nokia Scalable IP Networks

Nokia Border Gateway Protocol

Nokia Multiprotocol Label Switching

Nokia Services Architecture

Nokia Virtual Private Routed Networks

Nokia Quality of Service

Nokia Multicast Protocols

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Exam 5: Nokia Virtual Private LAN Services

Which of the following statements best defines S-TMSI?

Which of the following statements regarding handover is FALSE?

Which of the following statements regarding the role of the MME in the packet core is FALSE?

Which of the following is NOT performed by the MME during S1-based handover procedure?

Which of the following is NOT performed by the MME during a TAU procedure?

Which of the following is NOT a benefit of S1-Flex mechanism?

Which logical interface is used to transfer UE information from one MME to another MME during relocation?

Given the exhibit, if GTP-C load control is used, which SGW will have the highest probability of being selected by the MME for new session requests?

Which of the following statements regarding the SMC procedure is FALSE?

If the selected SGW fails, which SGW/PGW will MME select if 'gateway selection mode 2' is used?

Which of the following MME interfaces uses a protocol OTHER than GTP-C or Diameter?

Which of the following is NOT a characteristic of the home routed roaming architecture?

Which of the following statements regarding SGW selection by the MME is FALSE?

What network component(s) is/are shared in the gateway core network (GWCN) sharing architecture model?

Which of the following functions is NOT performed by MME when it receives a TAU from a UE?

Nokia Scalable IP Networks

Nokia Border Gateway Protocol

Nokia Multiprotocol Label Switching

Nokia Services Architecture

Nokia Virtual Private Routed Networks

Nokia Quality of Service

Nokia Multicast Protocols

Filters