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Which of the following can accept even palindrome over {a,b}

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Which of the following can accept even palindrome over {a,b}

(a) Push down Automata

(b) Turing machine

(c) NDFA

(d) All of the mentioned

I had been asked this question in an internship interview.

The above asked question is from Introduction to Turing Machines topic in portion Introduction to Turing Machines of Automata Theory

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Correct option is (c) NDFA

Explanation: A language generating strings which are palindrome is not regular, thus cannot b represented using a finite automaton.

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