Ran Volte Assessment - Restored

40 Questions | Total Attempts: 829

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Ran Volte Assessment - Restored

RAN VoLTE ASSESSMENTPlease read all instructions carefully before starting the quiz:QUIZ comprises of 40 QUESTIONS Total time to complete is 60 MINUTESPassing Score is 75%Questions are primarily MULTIPLE CHOICEMake sure you are in a secure and noise free environment for the entire duration of the quiz. While taking the quiz, you will be allowed to only move to the next QUESTION. However you can mark the question that you want to review again and you can view/edit all your selections before final submission. The Quiz doesn't let you submit without answering all the questions. Before starting to take the quiz, properly enter correct details:  


Questions and Answers
  • 1. 
    Which of the following codecs can be used for HD voice?
    • A. 

      12.2 AMR

    • B. 

      12. 65 AMR - WB

    • C. 

      4.75 AMR

    • D. 

      All of the above

  • 2. 
    Which of the following can impact peformance of a VoLTE call
    • A. 

      Jitter

    • B. 

      Packet Loss

    • C. 

      Latency

    • D. 

      All of the above

  • 3. 
    Standards for VoLTE are defined in
    • A. 

      RFC3261

    • B. 

      3GPP - Release 8

    • C. 

      GSMA IR.92

    • D. 

      None of the above

  • 4. 
    The LTE RAN network must support the following combination of radio bearers
    • A. 

      SRB1 + SRB2 + 2 x AM DRB + 1 x UM DRB

    • B. 

      SRB1 + SRB2 + 3 x UM DRB

    • C. 

      SRB1 + SRB2 + 1 x AM DRB + 1 x UM DRB

    • D. 

      Both A. & C. possible

  • 5. 
    S-TMSI is combination of which of the two IDs?
    • A. 

      MMEC & M-TMSI

    • B. 

      MMEC & GUTI

    • C. 

      M-TMSI & GUTI

    • D. 

      M-TMSI & MCC

  • 6. 
    What protocol stack is used over the S1-U interface?
    • A. 

      GTP/UDP/IP/L1,L2

    • B. 

      SCTP/UDP/IP/L1,L2

    • C. 

      UDP/IP/L1,L2

    • D. 

      SCTP/IP/L1,L2

  • 7. 
    The QoS for default bearer will be defined on which network component?
    • A. 

      SGSN

    • B. 

      MME

    • C. 

      HSS

    • D. 

      PCEF

  • 8. 
    Which IMS node is responsible for identifying the S-CSCF of the  UE?
    • A. 

      I-CSCF

    • B. 

      P-CSCF

    • C. 

      MMTAS

    • D. 

      BGF

  • 9. 
    Which of the following protocols is used in an IMS network for media handling?
    • A. 

      RTP

    • B. 

      SIP

    • C. 

      SCTP

    • D. 

      HTTP

    • E. 

      A & B

  • 10. 
    QCI 1 needs to be configured in eNB with…
    • A. 

      SIP signaling

    • B. 

      RLC UM

    • C. 

      Resource Fair Scheduler

    • D. 

      LCG 0

  • 11. 
    Uplink Scheduling Stratey for VOLTE is decided based on ……
    • A. 

      Highest priority QCI

    • B. 

      LCG

    • C. 

      Delay/late to miss target

    • D. 

      LCG for VOLTE

  • 12. 
    What is in LCG 3?
    • A. 

      QCI 9/best effort traffic

    • B. 

      SRB

    • C. 

      VoLTE

    • D. 

      QCI1 and QCI5

  • 13. 
    What PmServiceTimeUE does?
    • A. 

      Count Service Time

    • B. 

      Aggregate Services for all DRB

    • C. 

      All UE time

    • D. 

      Sum of all VOLTE UE

  • 14. 
    VOLTE enabler features includes….
    • A. 

      RAN Caching, Adaptive TCP Proxy, Media Transcoding

    • B. 

      IMS locator, HO to Wifi

    • C. 

      TTI Bundling, DRX, RoHC

    • D. 

      Adaptive RRM handling, capacity handler for services such as VOLTE

  • 15. 
    What is the maximum PDB limit for GBR?
    • A. 

      300 ms

    • B. 

      100 ms

    • C. 

      200 ms

    • D. 

      220 ms

  • 16. 
    GBR stands for...
    • A. 

      Gurrantee bit rate

    • B. 

      Gurrantee byte rate

    • C. 

      Gauge bar rate

    • D. 

      Giga Bit packet rate

  • 17. 
    Delay based scheduling bundle ____ packets for scheduling efficiency.
    • A. 

      4

    • B. 

      1

    • C. 

      2

    • D. 

      2.5

  • 18. 
    DBS main benefit?
    • A. 

      Schedule volte packets without compromising VOLTE quality & Weight VOLTE package for scheduling

    • B. 

      Schedule volte packets without compromising VOLTE quality & apply First come first serve for VOLTE package scheduling

    • C. 

      Weight VOLTE package for scheduling & add delay for DRB scheduling

    • D. 

      Schedule VOLTE packets without compromising VOLTE quality & prioritize SRB

  • 19. 
    DBS saves _____ .
    • A. 

      PDCCH, PUCCH, high segmention

    • B. 

      By High packet segmention

    • C. 

      PDCCH, SE/TTI, increase VOLTE capacity at cell edge

    • D. 

      VOLTE resources

  • 20. 
    DBS viop package are bundled at scheduling interval 
    • A. 

      40 ms

    • B. 

      220 ms

    • C. 

      200 ms

    • D. 

      20 ms

  • 21. 
    To send VOLTE packet UE will send ___ and ___ ___ until scheduled
    • A. 

      SR and stay sleep

    • B. 

      SR and stay awake

    • C. 

      RRC Restablishment and stay awake

    • D. 

      ACK and stay awake

  • 22. 
    RoHC function as
    • A. 

      Compressor

    • B. 

      Decompressor

    • C. 

      Packaging

    • D. 

      Header composition

  • 23. 
    TTI bundling is only benefitial for UE in ____
    • A. 

      Good radio condition

    • B. 

      Bad radio condition

    • C. 

      Perfect radio condition

    • D. 

      Indoor wifi

  • 24. 
    TTI bundling will benefit in less overhead for 
    • A. 

      PUSCH and PUCCH

    • B. 

      PUCCH and VOLTE resources in signaling

    • C. 

      MAV and PHICH

    • D. 

      MAC and RLC

  • 25. 
    RRC Re-establishement benefit are 
    • A. 

      VOLTE call can survive a RLC

    • B. 

      VOLTE call can survive TTI bundling

    • C. 

      VOLTE call can perform SRVCC

    • D. 

      VOLTE call can survive a RLF

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