Constructing Turing Machines Quiz
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Questions and Answers

What is the next step after marking the first unread 1 with Y?

  • Move back all the way to the last marked X, then move one position to the right (correct)
  • Move all the way to the right to the next blank symbol and stop & accept
  • Move to the right all the way to the first unread 0 and mark it with X
  • Move to the right to ensure there are no excess 1s
  • What action is taken if the next position after moving back to the last marked X is 0?

  • Move all the way to the right to the next blank symbol and stop & accept
  • Move to the right to ensure there are no excess 1s
  • Go back to step 1 and mark the next unread 0 with X (correct)
  • Move to the right all the way to the first unread 1 and mark it with Y
  • What is the tape symbol when the Turing machine is in state q1 and the current symbol is 0?

  • Y
  • 0 (correct)
  • X
  • 1
  • What is the next action after reaching the state q3 with the tape symbol Y?

    <p>Move to the right to ensure there are no excess 1s</p> Signup and view all the answers

    What is the tape symbol when the Turing machine is in state q0 and the current symbol is B?

    <p>B</p> Signup and view all the answers

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