State Graphs and Tables MCQ

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• Which of the following is essential for design of a sequence detector?
  ক

  AND gates

  খ

  XOR gates

  গ

  Flip-flops

  ঘ

  OR gates
• For a sequence detector of the sequence 1001, an input is given as 10010101100010011001. What are the serial numbers of clock pulses when the output will be 1?
  ক

  3, 15, 19

  খ

  4, 16, 20

  গ

  0, 0, 20

  ঘ

  1, 12, 16
• Which of the following is not needed to build a sequence detector?
  ক

  Multiplexer

  খ

  Clock

  গ

  Flip-Flop

  ঘ

  Logic gates
• How many states are there in the state diagram of any sequence detector?
  ক

  Undetermined

  খ

  Equal to the length of the sequence to be detected

  গ

  One more than the length of the desired sequence

  ঘ

  One less than the length of the desired sequence
• A sequence detector is set to detect the sequence 1010. How many times the output will go high if a stream of 1010101110010101011 is sent as an input and overlapping sequence is countable?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• How many time does the output of a sequence detector go high?
  ক

  Only once the required sequence is detected

  খ

  As many times as the sequence is detected

  গ

  Remains high after once the sequence is detected

  ঘ

  Remains low once the sequence is detected
• Let, a sequence detector is used to detect a sequence of 1101. How many times the output of the detector will go high for the input 1011011010011010111101 if overlapping sequence is not allowed?
  ক

  1

  খ

  4

  গ

  2

  ঘ

  3