21. Which metacharacter is used to specify grouping in a regular expression in Ruby? A. () B. [] C. {} D. <> Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
22. Which modifier is used to perform single-line matching in Ruby regular expressions? A. o B. x C. m D. s Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
23. What does the (?<=...) construct represent in a regular expression in Ruby? A. Negative lookahead assertion B. Negative lookbehind assertion C. Positive lookbehind assertion D. Positive lookahead assertion Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
24. Which method is used to split a string into substrings based on a regular expression in Ruby? A. String#break B. String#segment C. String#split D. String#divide Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
25. What does the (?<!...) construct represent in a regular expression in Ruby? A. Positive lookbehind assertion B. Negative lookahead assertion C. Positive lookahead assertion D. Negative lookbehind assertion Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
26. Which metacharacter is used to specify the beginning of a line in a regular expression in Ruby? A. ^ B. $ C. \A D. \Z Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
