Q. Let h(0)=ab; h(1)=e
Let L={abab,baba}
h-1(L)= the language of two zeroes and any number of one’s.
The given example belongs to which of the following?

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Q. If a DFA has n states and the language contains any string of length n or more, the language is termed as:

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Q. State true or false:
Statement: If an n-state DFA accepts a string w of length n or more, then there must be a state that appears twice on the path labeled w from the start state to the final state.

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Q. Which of the following is true?

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Q. All the regular languages can have one or more of the following descriptions:

i) DFA
ii) NFA
iii) e-NFA
iv) Regular Expressions

Which of the following are correct?

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Q. Which of the technique can be used to prove that a language is non regular?

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Q. Which of the following language regular?

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Q. Which of the following are non regular?

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Q. If L is DFA-regular, L’ is

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Q. Which of the following options is incorrect?

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Q. Myphill Nerode does the following:

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Q. Which of the following are related to tree automaton?

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Q. Given languages:
i) {a^nb^n|n>=0}

ii) <div>n</div>n

iii) {w∈{a,b}∗| #a(w)=#b(w)}, # represents occurrences

Which of the following is/are non regular?

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Q. Finite state machine are not able to recognize Palindromes because:

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Q. Relate the following statement:
Statement: All sufficiently long words in a regular language can have a middle section of words repeated a number of times to produce a new word which also lies within the same language.

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Q. While applying Pumping lemma over a language, we consider a string w that belong to L and fragment it into _________ parts.

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Q. If we select a string w such that w∈L, and w=xyz. Which of the following portions cannot be an empty string?

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Q. Let w= xyz and y refers to the middle portion and |y|>0.What do we call the process of repeating y 0 or more times before checking that they still belong to the language L or not?

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Q. There exists a language L. We define a string w such that w∈L and w=xyz and |w| >=n for some constant integer n.What can be the maximum length of the substring xy i.e. |xy|<=?

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Q. Fill in the blank in terms of p, where p is the maximum string length in L.
Statement: Finite languages trivially satisfy the pumping lemma by having n = ______

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