Quiz on Regular Expression

1. Question

Which of the following is not a metacharacter in the re module?

^
|
&
\

2. Question

What does the command ab+c search for?

ac,abc,abbc, and so on
ab,abc,abcc and so on
abc,abbc,abbbc and so on
None of the above

3. Question

The number of matches does the command a{1,3} give with the string aabbaaaa?

3
2
1
4

4. Question

What is the output of the below code?

print(re.match(‘On’,”one”))

'e'
Match Object
‘n’
None

5. Question

Find the output of the below code?

print(re.search(re.compile(‘(a|o)n’),’anaconda’).group())

[an,on]
an
on
2

6. Question

What does the sequence \D finds the match?

Decimal digits
Non-decimal digits
Division
None of the above

7. Question

Which of the following command is used to search a match for 1,2,3,4?

[1-4]
(1-3)
[1234]
Both a and c

8. Question

What is the output of the code shown below?

print(re.split(‘\d’,’abc123xyz’,maxsplit=1))

['abc', '23xyz']
['abc', '123xyz']
['abc123xyz']
['abc1', '23xyz']

9. Question

Which of the following gives an error?

re.findall('[12]' ,'aabbaaaa')
re.sub('z','y','abcdx!')
re.search('ab','aaca').group()
All the above

10. Question

What is the output of the below code?

re.sub(‘a’,’u’,’aeiou!’)

'ueiou!'
'eiou!'
'eio!'
None of the above

11. Question

Find the output of the below code?

tup=re.subn(‘ ‘,”,’123 452 901’)

print(tup[1])

123452901
2
1
Both a and b

12. Question

Which of the following is not an application of regular expressions?

Text processing
Lexical analysis
Search Engines
None of the above

13. Question

Find the output of the below code?

re.search(r’\w\s’,’Choose the option’).group()

‘e ‘
‘se’
‘os’
‘Choos’

14. Question

Which of the following will give the output as 1?

len(re.findall('[12]','134562'))
len(re.search(r'n','Python').group())
len(re.split('\s','Welcome to PythonGeeks',maxsplit=0))
len(re.split('s','Welcome to PythonGeeks',maxsplit=1))

15. Question

What is the output of the below code?

print(len(set(re.findall(r'[^aeiou]’,’abfeakfhjdknsam’))))

7
11
9
13

Quiz on Regular Expression

Quiz on Regular Expression

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