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Welcome to the Regular Languages MCQs Page

Dive deep into the fascinating world of Regular Languages with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Regular Languages, a crucial aspect of Formal Languages and Automata Theory. In this section, you will encounter a diverse range of MCQs that cover various aspects of Regular Languages, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Formal Languages and Automata Theory.

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Check out the MCQs below to embark on an enriching journey through Regular Languages. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Formal Languages and Automata Theory.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Regular Languages. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Regular Languages MCQs | Page 2 of 8

Q11.
Which of the following language regular?
Discuss
Answer: (b).{a^ib^i|0<i<5}
Discuss
Answer: (d).None of the mentioned
Q13.
If L is DFA-regular, L’ is
Discuss
Answer: (b).DFA-regular
Discuss
Answer: (b).Let L be a regular language. If ~L has k equivalent classes, then any DFA that recognizes L must have atmost k states.
Discuss
Answer: (c).both a and b
Q16.
Which of the following are related to tree automaton?
Discuss
Answer: (d).All of the mentioned
Q17.
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?
Discuss
Answer: (d).i, ii, iii
Discuss
Answer: (d).All of the mentioned
Q19.
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.
Discuss
Answer: (b).Pumping Lemma
Q20.
While applying Pumping lemma over a language, we consider a string w that belong to L and fragment it into _________ parts.

a.

2

b.

5

c.

3

d.

6

Discuss
Answer: (c).3
Page 2 of 8

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