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Welcome to the Regular Expressions MCQs Page

Dive deep into the fascinating world of Regular Expressions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Regular Expressions, 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 Expressions, 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 Expressions. 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 Expressions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Regular Expressions MCQs | Page 13 of 15

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Q121.
State true or false:
Statement: A lexical analyzer reads the source code line by line.
Discuss
Answer: (b).False
Discuss
Answer: (a).Stream of tokens
Q123.
The phase of compilation which involves type checking is:
Discuss
Answer: (c).Syntax directed translation
Q124.
Which among the following is not a tool to construct lexical analyzer from a regular expression?
Discuss
Answer: (d).none of the mentioned
Q125.
A program that performs lexical analysis is termed as:
Discuss
Answer: (d).all of the mentioned
Q126.
Lexers and parsers are not found in which of the following?
Discuss
Answer: (d).none of the mentioned
Q127.
Which phase of compiler includes Lexical Analysis?
Discuss
Answer: (a).1
Q128.
Which of the following characters are ignored while lexical analysis?
Discuss
Answer: (d).WhiteSpace
Q129.
____________ is used for grouping up of characters into token.
Discuss
Answer: (d).All of the mentioned
Q130.
The action of parsing the source code into proper syntactic classes is known as:
Discuss
Answer: (d).Lexical Analysis

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