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Theory of Automata MCQs with Answers

Practice important Theory of Automata MCQs with answers and explanations.

Multiple Choice Questions

Q191: What does the transition table for FA3 represent?
  • A: All possible states and transitions based on input
  • B: Only the final states
  • C: The initial state only
  • D: The rejected states
View Answer
A

Q192: Fill in the blank: Kleene’s theorem part III, method 2 focuses on the _______ of FAs.
  • A: concatenation
  • B: union
  • C: closure
  • D: intersection
View Answer
A

Q193: Fill in the blank: The closure of an FA is like the ______ of the FA with itself.
  • A: concatenation
  • B: union
  • C: intersection
  • D: complement
View Answer
A

Q194: Fill in the blank: In the FA corresponding to r = (a+b)*b, the string accepted by the automaton must end with _______.
  • A: b
  • B: a
  • C: a or b
  • D: neither
View Answer
A

Q195: Fill in the blank: The FA corresponding to r1r2 consists of states labeled _______.
  • A: z1, z2, z3
  • B: x1, x2, y1
  • C: s1, s2, s3
  • D: f1, f2
View Answer
A

Q196: What is the unique property of an NFA?
  • A: Multiple start states
  • B: Single start state
  • C: No start state
  • D: Multiple final states
View Answer
B

Q197: An NFA is a collection of how many components?
  • A: 2
  • B: 3
  • C: 4
  • D: 5
View Answer
B

Q198: Which of the following is NOT a valid input symbol in an NFA?
  • A: a
  • B: b
  • C: c
  • D: ∧
View Answer
D

Q199: What is the alphabet Σ in the NFA defined over {a, b, c}?
  • A: {a}
  • B: {a, b}
  • C: {a, b, c}
  • D: {a, c}
View Answer
C

Q200: How does an NFA accept a string?
  • A: If there exists one successful path
  • B: If all paths are successful
  • C: If there is no transition
  • D: If the input is empty
View Answer
A

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