Software Defined Radio MCQ

Test your knowledge with important Software Defined Radio MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Software Defined Radio MCQs at Bissoy

• Bitstream processing performs _____
  ক

  data encryption

  খ

  transmission termination

  গ

  connection tests

  ঘ

  frame alignment
• Which of the following is not a responsibility of the data link layer?
  ক

  Framing

  খ

  Integration

  গ

  Addressing

  ঘ

  Error control
• Which of the following is not an SDR function associated with presentation layer?
  ক

  Radio network configuration

  খ

  Encryption

  গ

  Virtual terminals

  ঘ

  Object request broker
• ____ messages hold setup information for digitally vocoded voice.
  ক

  Bitstream

  খ

  INFOSEC

  গ

  Modem

  ঘ

  Internetworking
• The ____ function is used to connect two front end channels.
  ক

  joining

  খ

  assembling

  গ

  bridging

  ঘ

  cooperative
• User interface software allows the ____ of ____ between a core system processor and an external head.
  ক

  direction, signal

  খ

  distribution, channel control

  গ

  distribution, signal

  ঘ

  direction, channel control
• ____ software supports system control and user-interface functions.
  ক

  Voice processing

  খ

  Mode processing

  গ

  Message processing

  ঘ

  Network processing
• CELP stands for ____
  ক

  Codebook Evolved Linear Processing

  খ

  Codebook Excited Linear Prediction

  গ

  Cross-correlation Excited Linear Prediction

  ঘ

  Cross-correlation Evolved Linear Processing
• ____ is the process of non-linear compression and expansion of analog electronic signal.
  ক

  Quantization

  খ

  Companding

  গ

  Pulse code modulation

  ঘ

  Modulation
• Which of the following is not present in the source segment of a mobile unit?
  ক

  Narrowband ADCs

  খ

  Source encoder

  গ

  Source decoder

  ঘ

  Interface to the PSTN
• Maximum likelihood techniques formulate the likelihood ratio for a sequence of channel symbols.
  ক

  True

  খ

  False
• Multibeam antenna technology is more complex than null-forming.
  ক

  True

  খ

  False
• Decoded Channel Bits Interface is defined between ____ functional block and ____ functional block.
  ক

  antenna, RF/IF

  খ

  RF/IF, modem

  গ

  modem, INFOSEC

  ঘ

  INFOSEC, bitstream
• In_____, the highest-power signal is demodulated to estimate its bitstream.
  ক

  maximum likelihood

  খ

  sequential interference cancellation

  গ

  least mean square

  ঘ

  recursive least square
• ____ technique exploits lack of coherence between desired signal and interference.
  ক

  Multibeam arrays

  খ

  Adaptive spatial nulling

  গ

  Beamforming

  ঘ

  Space-time adaptive processing
• ____ is a method used for calculating beamforming weights.
  ক

  Sample matrix inversion

  খ

  Indirect matrix inversion

  গ

  Convolution

  ঘ

  Correlation
• In ____, the interference has difference placement on the long-code.
  ক

  GSM

  খ

  AMPS

  গ

  CDMA

  ঘ

  FDMA
• In space-time adaptive processing, _____ and equalization parameters are calculated _____
  ক

  diversity, jointly

  খ

  diversity, independently

  গ

  beamforming, jointly

  ঘ

  beamforming, independently
• Which of the following statements is false regarding the spatial distribution of a wavefront?
  ক

  Multipath components are collinear with direct path

  খ

  Multipath components have less signal strength than direct path

  গ

  Multipath components are present

  ঘ

  Multipath components exhibit time delay
• _____ process determines delay azimuth parameters.
  ক

  Stationary

  খ

  Auto correlation

  গ

  Cross correlation

  ঘ

  Convolution
• In the context of smart antenna, SAT stands for _____
  ক

  Scholastic Assessment Test

  খ

  Site Acceptance Test

  গ

  Saturation

  ঘ

  Supervisory Audio Tones
• Spatial nulling subsystem replaces three element sectors of conventional base station with ____ disposed antenna elements.
  ক

  four spherically

  খ

  eight spherically

  গ

  four circularly

  ঘ

  eight circularly
• Interference with adjoining sectorized antennas can be avoided by _____
  ক

  frequency nulling

  খ

  spatial nulling

  গ

  spatial beam-forming

  ঘ

  frequency beam-forming
• If a multibeam array has ____, it may not be feasible to assign a complete frequency-reuse plan to each beam.
  ক

  a single beam

  খ

  two beams

  গ

  less than five beams

  ঘ

  more than ten beams
• Smart antenna integrates the contributions of _____ antenna elements.
  ক

  band distributed

  খ

  band centralized

  গ

  spatially distributed

  ঘ

  spatially centralized
• The performance management process consists of two steps.
  ক

  True

  খ

  False
• Determining the overall performance is a step carried out to establish specification.
  ক

  True

  খ

  False
• _____ is the intersection of a thread with a processor.
  ক

  Link

  খ

  Sub thread

  গ

  Wire

  ঘ

  Process
• Which of the following is not a software requirement required by CDMA?
  ক

  Symbol integration

  খ

  Blind equalization

  গ

  Tracker

  ঘ

  Viterbi decoder
• The total software demand is given by __________
  ক

  Thread activation rate +(Complexity * Sub thread load factor)

  খ

  (Thread activation rate * Complexity) + Sub thread load factor

  গ

  Thread activation rate* Complexity * Sub thread load factor

  ঘ

  Thread activation rate + Complexity + Sub thread load factor