Download Nokia.4A0-M02.RealExams.2019-03-26.78q.vcex

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Exam Nokia Mobile Gateways for the LTE Evolved Packet Core
Number 4A0-M02
File Name Nokia.4A0-M02.RealExams.2019-03-26.78q.vcex
Size 5 MB
Posted Mar 26, 2019
Download Nokia.4A0-M02.RealExams.2019-03-26.78q.vcex

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Demo Questions

Question 1

Which of the following statements most accurately describes the MME?


  1. The MME selects the SGW and the PGW for a given UE.
  2. The MME is responsible for the bearer management.
  3. The MME communicates with both the E-UTRAN and the EPC via GTP-C tunnels.
  4. The MME performs the user authentication and authorization using the information provided by the HSS
  5. All of the above answers are correct.
  6. Only answers A, B and D are correct.
Correct answer: F



Question 2

A UE needs to get an IP address before it can communicate to any PDN over the LTE network. 
Which of the following statements are FALSE regarding the process of the IP address allocation? (Choose two)


  1. A PGW may obtain an IP address from a RADIUS server and assign it to the UE.
  2. A PGW may assign the IP address from its local address pools.
  3. An SGW may obtain a static IP address from the HSS server and assign it to the UE.
  4. An SGW may obtain an IP address from a RADIUS server and assign it to the UE.
  5. A PGW may obtain an IP address from a DHCP server and assign it to the UE.
Correct answer: CD



Question 3

Which of the following statements is TRUE regarding the IP connectivity between a UE and a PDN?


  1. A UE gets an IPv4 address and/or an IPv6 prefix per APN.
  2. A PGW forwards the UE's IP packets to the PDN based on the address of the PDN server.
  3. When a UE sends an IP packet to a PDN over the EPC core, the eNodeB forwards the encapsulated packet to the SGW by looking into its IP routing table to determine how to reach the PDN server.
  4. The SGW forwards the UE's IP packets to the PGW based on the address of the PDN server.
  5. Only answers C and D are correct.
  6. Only answers A and B are correct.
Correct answer: F



Question 4

Which of the following LTE interfaces are used for the communication of user data? (Choose one best answer)


  1. The S1-MME interface and the S11 interface.
  2. The S1-U interface.
  3. The S5 interface.
  4. The S1-U interface, the S5 interface and the LTE-Uu interface.
  5. Only answers A, B and C are correct.
  6. Only answers B and C are correct.
Correct answer: D



Question 5

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?


  1. GTP/TCP
  2. GTP/UDP
  3. GTP/IP
  4. GTP/SCTP
  5. None of the above answers are correct
Correct answer: B



Question 6

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


  1. The UE is served by an eNodeB.
  2. The eNodeB selects one MME to serve the UE.
  3. The MME selects one SGW to serve the UE.
  4. The SGW selects one PGW to serve the UE
  5. The PGW selects one PCRF server if required.
Correct answer: D



Question 7

Which of the following statements is FALSE regarding the UE paging process?


  1. The SGW performs downlink data buffering while the S1 bearer is being established.
  2. The SGW initiates the paging messages towards the UE.
  3. The PGW is not aware of the paging process.
  4. The UE initiates the service request procedure once it receives the paging message.
  5. The paging procedure is controlled by the MME.
Correct answer: B



Question 8

There is an active GTP path between an Alcatel-Lucent SGW and an Alcatel-Lucent PGW, On the SGW. 
Which of the following CLI commands is used to check the "Restart Count" value of the PGW?


  1. show mobile-gateway serving ref-point-peers s5
  2. show mobile-gateway serving ref-point-stats s5
  3. show mobile-gateway serving bearer-stats s5
  4. show mobile-gateway serving path-mgmt-stats s5
  5. None of the above answers are correct.
Correct answer: D



Question 9

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


  1. 1
  2. 2
  3. 3
  4. 4
  5. 6
Correct answer: E



Question 10

Which of the following most accurately describes the messages used to manage a Diameter connection path?


  1. The Capabilities-Exchange message
  2. The Device-Watchdog message
  3. The Credit-Control message
  4. The Disconnect-Peer message
  5. All of the above answers are correct
  6. Only answers A, B and D are correct
Correct answer: F









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