Q. The minimum number of 1’s to be used in a regular expression of the given language:
R(x): The language of all strings containing exactly 2 zeroes.

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Q. Which of the following regular expression is equivalent to R(1,0)?
R(1,0)={111*}*

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Q. The minimum length of a string {0,1}* not in the language corresponding to the given regular expression:
(0*+1*)(0*+1*)(0*+1*)

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Q. Which of the following is the task of lexical analysis?

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Q. The action of parsing the source code into proper syntactic classes is known as:

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Q. ____________ is used for grouping up of characters into token.

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Q. Which of the following characters are ignored while lexical analysis?

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Q. Which phase of compiler includes Lexical Analysis?

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Q. Lexers and parsers are not found in which of the following?

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Q. A program that performs lexical analysis is termed as:

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Q. Which among the following is not a tool to construct lexical analyzer from a regular expression?

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Q. The phase of compilation which involves type checking is:

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Q. The scanner outputs:

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Q. State true or false:
Statement: A lexical analyzer reads the source code line by line.

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Q. The methodology to show an error when the analyzer faces a keyword over an user’s input is based on:

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Q. If the lexical analyser finds a lexeme with the same name as that of a reserved word,it _________

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Q. Lexemes can be referred to as:

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Q. Which of the following does not support regular expressions?

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Q. What does “X?” do regular expression operator?

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Q. What does the following segment of code does?
grep -i man heroes.txt

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