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4A0-M03 Real Exam Questions

Nokia Mobility Manager

40 questions available · Page 1 of 4

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Question 1 Single choice

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

  1. A

    S10

  2. B

    S3

  3. C

    S6a

  4. D

    S13

Show answer and explanation

Correct answer: A

Explanation

References:
https://www.cablefree.net/wirelesstechnology/4glte/lte-interfaces/

Question 2 Single choice

Which of the following is NOT performed by the MME during service request procedure?

  1. A

    MME sends paging messages to a list of eNodeBs.

  2. B

    MME updates the SGW with current eNodeB information.

  3. C

    MME re-establishes S11 bearers for the UE.

  4. D

    MME requests eNodeB to establish radio and S1 bearers for the UE.

Show answer and explanation

Correct answer: C

Question 3 Single choice

Given the exhibit, which component initiated a mobile-terminated location request (MT-LR) procedure for external LCS client?

  1. A

    MME

  2. B

    GMLC

  3. C

    E-SMLC

  4. D

    HSS

Show answer and explanation

Correct answer: D

Explanation

References:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiEuu_cmrnsAhXiD2MBHQUND3AQFjAAegQIBhAC&url=ftp%3A%2F%2Fwww.3gpp.org%2Ftsg_sa%2FWG5_TM%2FTSGS5_68%2F_specs_for_checking%2Fupgrade%2F32271-900.doc&usg=AOvVaw1w-IpeUNE8VTNAgojrdFa4

Question 4 Single choice

Which of the following messages are exchanged between the MME and the SGW during the dedicated bearer activation procedure?

  1. A

    Attach Request / Attach Accept

  2. B

    Create Bearer Request / Create Bearer Response

  3. C

    Session Management Request / Session Management Response

  4. D

    RA-Request / RA-Answer

Show answer and explanation

Correct answer: B

Explanation

References:
https://www.sciencedirect.com/topics/engineering/dedicated-bearer

Question 5 Single choice

Which of the following statements regarding paging policy is FALSE?

  1. A

    Paging method defines which forwarding path is used to forward the paging message to eNodeBs

  2. B

    Paging policy defines paging procedures used by MME to page an idle UE

  3. C

    Paging timer specifies the time to wait for a response to a paging request message

  4. D

    Paging attempt specifies the number of times MME tries to page a UE before the UE is deemed non-responsive

Show answer and explanation

Correct answer: A

Question 6 Single choice

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

  1. A

    SGW selection can occur during initial attach, tracking area update, or handover procedures

  2. B

    MME can select an SGW by performing a DNS query on a given TAI FQDN

  3. C

    MME can select an SGW based on the overload control information received from each SGW in the
    SGW pool

  4. D

    MME can select an SGW from the SGW pool(s) configured to serve the given TAI

Show answer and explanation

Correct answer: C

Question 7 Single choice

What information does eNodeB use to ensure MME load balancing during MME selection?

  1. A

    MME relative capacity value received from each MME in the pool

  2. B

    MME capacity value received from the UE attach request message

  3. C

    MME capacity value from the UE's subscription data received from the HSS

  4. D

    MME relative capacity value calculated by each MME based on the current network load

Show answer and explanation

Correct answer: A

Question 8 Single choice

Which of the following statements regarding handover is FALSE?

  1. A

    Handover can occur when UE is in ECM-CONNECTED state

  2. B

    S1-based handover is used when X2-based handover attempt failed

  3. C

    During X2-based handover, MME may remain the same or be relocated

  4. D

    S1-based handover is used when there is no X2 interface between source and target eNodeBs

Show answer and explanation

Correct answer: C

Question 9 Single choice

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

  1. A

    Bearer traffic is routed from the SGW to the PGW over the S5 interface

  2. B

    The UE bearers are anchored at the SGW to the VPLMN

  3. C

    Subscriber services are obtained through the HPLMN

  4. D

    The MME in the VPLMN has an S6a interface to the HSS in the HPLMN

Show answer and explanation

Correct answer: A

Question 10 Single choice

Which of the following statements best describes a home PLMN?

  1. A

    A network where a UE is currently registered and has a different PLMN ID from the UE's PLMN ID

  2. B

    A provisioned network that is shared by multiple operators

  3. C

    A network where a UE is currently being served

  4. D

    A network where a UE is subscribed

Show answer and explanation

Correct answer: C