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Perl Compatible Regular Expressions MCQ with Answers

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"The Perl-compatible regex patterns are always ended by one particular character, which must be?" Multiple Choice Questions (MCQ) on perl compatible regular expressions with choices same as beginning and end, same at middle and end, different from beginning, and none of them for computer software engineer. Solve perl compatible regular expressions quiz questions for merit scholarship test and certificate programs to learn online certificate courses.

MCQs on Perl Compatible Regular Expressions


The Perl-compatible regex patterns are always ended by one particular character, which must be?

Same as beginning and end
Same at middle and end
Different from beginning
None of them


In Perl-compatible patterns any pattern that is followed by ? this means that

Match this pattern 1 or more times
Match this pattern exactly 1 time
Match this pattern 0 times
None of them


Why a special character is used in the beginning and the end of string in Perl-compatible patterns?

Because it indicates the beginning and end of the pattern
Because it indicates that it?s a integer string
Because it indicates the literal
It indicates nothing


All these functions are preg_quote ( ), preg_grep ( ), preg_split ( ), preg_match_all ( ) example of

POSIX style regex
Competent style regex
Perl compatible style regex
None of them