Theory of Computation (Automata)
What is the function or purpose of Pushdown automaton?
Difficulty: Hard
About this MCQ
This Hard Theory of Computation (Automata) question asks: What is the function or purpose of Pushdown automaton? The correct choice is A. An automaton that uses a stack to recognize context-free languages.. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
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- A. An automaton that uses a stack to recognize context-free languages. ✓
- B. A property of a problem indicating whether an algorithm can be constructed that always provides a correct yes/no answer.
Why not B: “A property of a problem indicating whether an algorithm can be constructed that always provides a correct yes/no answer.” does not fit this question. The answer is An automaton that uses a stack to recognize context-free languages..
- C. A finite, non-empty set of symbols used to construct strings in a formal language.
Why not C: “A finite, non-empty set of symbols used to construct strings in a formal language.” does not fit this question. The answer is An automaton that uses a stack to recognize context-free languages..
- D. A visual representation showing how an automaton moves between states based on input symbols.
Why not D: “A visual representation showing how an automaton moves between states based on input symbols.” does not fit this question. The answer is An automaton that uses a stack to recognize context-free languages..
Correct answer
A. An automaton that uses a stack to recognize context-free languages.
Explanation
An automaton that uses a stack to recognize context-free languages is the value that answers What is the function or purpose of Pushdown automaton option A Option B A property of a problem indicating whether an algorithm can be constructed that always provides a correct yes no answer does not fit this question Option C A finite non-empty set of symbols used to construct strings in a formal language does not fit this question Option D A visual representation showing how an automaton moves between states based on input symbols does not fit this question For this Theory of Computation Automata question the accepted answer is An automaton that uses.
Source: Theory of Computation (Automata) Official Reference Guide
Tags: computer science, automata theory, theory of computation, formal languages
Submitted by: MCQsHub Editorial
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