Question

The expression a{5} will match _____________ characters with the previous regular expression.

(a) 5 or less

(b) exactly 5

(c) 5 or more

(d) exactly 4

This question was posed to me in a national level competition.

This interesting question is from Regular Expressions in division Regular Expressions and Files of Python

Answer 1

The correct choice is (b) exactly 5

The explanation: The character {m} is used to match exactly m characters to the previous regular expression. Hence the expression a{5} will match exactly 5 characters and not less than that.