Explore topic-wise MCQs in Automata Theory.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Automata Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

What does X? do regular expression operator?

A. Matches zero or more capital X s
B. Matches no or one occurence of the capital letter X
C. Matches one or more capital X s
D. All of the mentioned
Answer» C. Matches one or more capital X s
Discussion
2.

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

A. manually opens a file called heroes.txt
B. manages heroes.txt
C. search for man in the file heroes.txt
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
3.

Which of the following options support the given statement?
Statement: A regular expression could be a fixed word or describe something like more general.

A. This flexibility makes Regular expression invaluable
B. This flexibility makes the Regular expression unvaluable
C. This flexibility makes Regular expression invaluable and unvaluable
D. None of the mentioned
Answer» B. This flexibility makes the Regular expression unvaluable
Discussion
4.

State true or false:
Statement: A regular expression is a sequence of characters that represent a pattern.

A. true
B. false
Answer» B. false
Discussion
5.

For the given syntax of sed, which among the following is not a correct option?
General syntax of sed: /pattern/action

A. / are used as delimiters
B. pattern refers to a regular expression
C. pattern refers to the string to be matched
D. action refers to the command
Answer» D. action refers to the command
Discussion