Radio Frequency Training Test! Trivia Quiz

40 Questions | Total Attempts: 46

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Telecommunication Quizzes & Trivia

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Questions and Answers
  • 1. 
    In SAE , which equipment is used to process the control plane of the S1 interface?
    • A. 

      MME

    • B. 

      SGW

    • C. 

      PDN GATEWAY

    • D. 

      PCRF

  • 2. 
    How many symbols in each time slot for extended CP?
    • A. 

      5

    • B. 

      6

    • C. 

      7

    • D. 

      8

  • 3. 
    Maximally how many symbols could be used for PDCCH in a sub frame?
    • A. 

      1

    • B. 

      3

    • C. 

      5

    • D. 

      7

  • 4. 
    Which of the following system information are not carried by PDSCH?
    • A. 

      MIB

    • B. 

      SIB1

    • C. 

      SIB2

    • D. 

      SIB3

  • 5. 
    Which of the following channels is used to indicate on the numbers of OFDMA symbols reserved for control information?
    • A. 

      PDSCH

    • B. 

      PBCH

    • C. 

      PCFICH

    • D. 

      PHICH

  • 6. 
    Which measurement quantity is used for UE idle measurement?
    • A. 

      RSRP

    • B. 

      RSRQ

    • C. 

      SINR

    • D. 

      Both RSRP and RSRQ

  • 7. 
    Which of following procedure is not UE idle behavior?
    • A. 

      System message reception

    • B. 

      Paging reception

    • C. 

      RS measurement

    • D. 

      Measurement report

  • 8. 
    What is the period of system message update?
    • A. 

      1 hour

    • B. 

      2 hours

    • C. 

      3 hours

    • D. 

      4 hours

  • 9. 
    What is the possible scenario to trigger cell selection?
    • A. 

      After UE handovers in a new cell

    • B. 

      After UE selects a new PLMN

    • C. 

      After UE establishes RRC connection

    • D. 

      After UE establishes RRC reconfiguration

  • 10. 
    What modulation does LTE support for PBCH?
    • A. 

      BPSK

    • B. 

      QPSK

    • C. 

      16QAM

    • D. 

      64QAM

  • 11. 
    Which of following parameters are not included in UE measurement report?
    • A. 

      Measurement ID

    • B. 

      Target cell PCI

    • C. 

      Event ID

    • D. 

      Measurement result

  • 12. 
    For Enhanced Blind Handover, which of the followings are incorrect?
    • A. 

      In order to avoid the failures of blind handover

    • B. 

      UE is configured with A1 to measure the service cell before handover

    • C. 

      In the CSFB based on enhanced Blind Handover, UE is configured with B1 to measure the target system before handover

    • D. 

      Option 4

  • 13. 
    What is maximum measurement result number that can be contained in one measurement report?
    • A. 

      2

    • B. 

      4

    • C. 

      6

    • D. 

      8

  • 14. 
    After detect abnormal handover between cell A and cell B, which parameter should be modify?
    • A. 

      Ocn

    • B. 

      Ocs

    • C. 

      Ofn

    • D. 

      Ofs

  • 15. 
    Which of following is the Necessary Handover?
    • A. 

      Coverage-based

    • B. 

      Service-based

    • C. 

      Frequency Priority-based

    • D. 

      Speed-based

  • 16. 
    For measurement based CSFB, after which event does the eNodeB trigger CSFB execution?
    • A. 

      A1

    • B. 

      A3

    • C. 

      B1

    • D. 

      B2

  • 17. 
    If target inter-RAT doesn't support VoIP service, what is the solution for LTE VoIP inter-RAT handover?
    • A. 

      SRVCC

    • B. 

      CSFB

    • C. 

      PS handover

    • D. 

      CCO

  • 18. 
    Which of following technologies are not used only on uplink scheduling?
    • A. 

      TTI bundling

    • B. 

      64QAM

    • C. 

      Pre-allocation scheduling

    • D. 

      Virtual MIMO scheduling

  • 19. 
    Which interface used for TAI and LAI mapping?
    • A. 

      S3

    • B. 

      SGs

    • C. 

      S1

    • D. 

      S8

  • 20. 
    Which solution required the RIM?
    • A. 

      PS Redirection

    • B. 

      PS Blind Redirection

    • C. 

      Flash CSFB

    • D. 

      PS Handover

  • 21. 
    Which PLMN will be selected by UE to attach to the network? 
    • A. 

      OPLMN

    • B. 

      UPLMN

    • C. 

      RPLMN

    • D. 

      HPLMN

  • 22. 
    Which signalling message is Msg3?
    • A. 

      RRC Connection Request

    • B. 

      RRC Connection Setup

    • C. 

      RRC Connection Setup Complete

    • D. 

      RRC Connection Reconfiguration

  • 23. 
    Which channel is used to transmit SRB0?
    • A. 

      CTCH

    • B. 

      DTCH

    • C. 

      DCCH

    • D. 

      CCCH

  • 24. 
    What is the difference between UE Initial Attach Procedure and Service Request Procedure?
    • A. 

      No RRC Connection Setup in Service Request Procedure

    • B. 

      No UE Capabilities Enquiry and Info in Service Request Procedure

    • C. 

      No S1AP Initial UE message in UE Initial Attach Procedure

    • D. 

      No RRC Connection Reestablishment in UE Initial Attach Procedure

  • 25. 
    Which type of Random Access will be used for Handover process?
    • A. 

      Contention based

    • B. 

      Contention free

    • C. 

      Connection free

    • D. 

      Connection based

  • 26. 
    Preamble format 0 will be applied for large cell coverage
    • A. 

      True

    • B. 

      False

  • 27. 
    If no TMA in eNodeb, attenuation should be set as 11 dB.
    • A. 

      True

    • B. 

      False

  • 28. 
    VSWR value can be checked by using STR VSWRTEST command but this command will interrupt service.
    • A. 

      True

    • B. 

      False

  • 29. 
    After VSWR value is higher than VSWR post-processing threshold, eNodeB will shutdown Tx port and Tx port will be automatically turned on after VSWR value back to normal.
    • A. 

      True

    • B. 

      False

  • 30. 
    PIM 3 causes highest interference to the wanted signal.
    • A. 

      True

    • B. 

      False

  • 31. 
    1 CCE consists of 40 Resource Elements.
    • A. 

      True

    • B. 

      False

  • 32. 
    Which parameter in Event A3 is used to prevent Ping-Pong handover
    • A. 

      Ocn

    • B. 

      Ofn

    • C. 

      Ofs and Ocs

    • D. 

      Hysteresis

  • 33. 
    What is the impact for handover when setting large value of Ofn?
    • A. 

      If this parameter is set to a larger value, there is a higher probability of handing over UEs to cells on the neighboring E-UTRAN frequency, but these UEs may fail to access the target cells because of poor signal quality in the target cells

    • B. 

      If this parameter is set to a larger value, there is a lower probability of handing over UEs to cells on the neighboring E-UTRAN frequency, but these UEs may fail to access the target cells because of poor signal quality in the target cells

    • C. 

      If this parameter is set to a larger value, there is a lower probability of handing over UEs to cells on the neighboring E-UTRAN frequency, but these UEs may success to access the target cells because of poor signal quality in the target cells

    • D. 

      If this parameter is set to a larger value, there is a higher probability of handing over UEs to cells on the neighboring E-UTRAN frequency, but these UEs may success to access the target cells because of poor signal quality in the target cells

  • 34. 
    What is the meaning of Ocs
    • A. 

      It does not take any effect in handover.

    • B. 

      It affects the probability of triggering handovers from the neighboring cell to serving cell

    • C. 

      It affects the probability of triggering handovers when setting this parameter to 0

    • D. 

      It affects the probability of triggering handovers from the serving cell to its neighboring cells.

  • 35. 
    To check cross feeder or cross antenna, query command MOD TXBRANCH
    • A. 

      True

    • B. 

      False

  • 36. 
    High Modulation scheme will be applied when LTE network has good channel quality
    • A. 

      True

    • B. 

      False

  • 37. 
    RANK0 for 2*2 MIMO means 1 of 2 antennas is used to transmit data.
    • A. 

      True

    • B. 

      False

  • 38. 
    Spatial Multiplexing can gain more reliability and diversity can gain more data rates.
    • A. 

      True

    • B. 

      False

  • 39. 
    RRC reconfiguration message is used for reestablishing connection after HO failure and RLF.
    • A. 

      True

    • B. 

      False

  • 40. 
    TTI bundling feature can increase probability to transmit data on PUSCH successfully.
    • A. 

      True

    • B. 

      False