
Regular expression (Quiz 1)
Authored by Alok Sahoo
Computers
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the regular expression ^abc match?
Any string containing "abc"
A string ending with "abc"
A string starting with "abc"
A string with only "abc"
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the . (dot) symbol match in a regular expression?
A digit
A space
Any single character except newline
The end of a string
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will the regex a* match?
Zero or more 'a' characters
One or more 'a' characters
Exactly one 'a'
No match at all
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the \d represent in regex?
Any digit
A lowercase 'd'
A whitespace
A word character
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which regex matches exactly a 5-digit number?
\d+
\d{5}
\d*
\d{1,5}
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which regex will match email addresses like user@example.com?
[a-z]+@[a-z]+\.[a-z]+
\w+@\w+\.\w+
\S+@\S+
.+@.+
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the + symbol mean in regex?
Optional
Zero or more
One or more
Exactly one
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