Wednesday 9 September 2015

UMTS Online Quiz Questions And Answers

41) Interference is the main resource criterion for CDMA system; the following load control measures are practiced: - UL total received wideband interference power - DL total transmission power - One RNC on cell basis periodically under.
 
  A. True
  B. False
Ans: A

42) Traffic in a cell can be categorized by priority, depending on the traffic type (Conversational, Streaming, Interactive, Background). The categories can be subdivided into RT and NRT traffic.
 
  A. True
  B. False
Ans: A

43) Above Ptx_threshold or Prx_threshold, Overload control of LC and PS decreases bitrate and drops NRT bearers
 
  A. True
  B. False
Ans: A

44) Above Ptx_target + Ptx_offset, Preventive control of LC, AC does not admit new bearers, PS decreases bitrate of NRT
 
  A. True
  B. False
Ans: A

45) Above Ptx_target, No actions done by LC, AC does not admit new bearers, PS does not increase NRT load but can change bitrate
 
  A. True
  B. False
Ans: A

46) Both scrambling and channelization codes are maintained by RNC.
 
  A. True
  B. False
Ans: A

47) Spreading code by definition is the same as scrambling code X channelization code.
 
  A. True
  B. False
Ans: A

48) It means the phenomenon where the probability of the blocked branch of the code tree increases too much and thus it starts to prevent new accesses to the system
 
  A. Code blocking
  B. Code handover
  C. Fragmentation
  D. None of the choices
Ans: C

49) The channelization code has the same length as the base band data.
 
  A. True
  B. False
Ans: A

50) Channelization codes could change during a connection.
 
  A. True
  B. False
Ans: A

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