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Question

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: (b).Matches no or one occurence of the capital letter X.

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

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