Welcome to the Regular Expressions and Files MCQs Page

Dive deep into the fascinating world of Regular Expressions and Files with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Regular Expressions and Files, a crucial aspect of Python. In this section, you will encounter a diverse range of MCQs that cover various aspects of Regular Expressions and Files, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Python.

Check out the MCQs below to embark on an enriching journey through Regular Expressions and Files. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Python.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Regular Expressions and Files. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Regular Expressions and Files MCQs | Page 2 of 10

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Q11.

The character Dot (that is, ‘.’) in the default mode, matches any character other than _____________

caret

ampersand

percentage symbol

newline

Discuss

Answer: (d).newline

Q12.

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

5 or less

exactly 5

5 or more

exactly 4

Discuss

Answer: (b).exactly 5

Q13.

________ matches the start of the string.
________ matches the end of the string.

‘^’, ‘$’

‘$’, ‘^’

‘$’, ‘?’

‘?’, ‘^’

Discuss

Answer: (a).‘^’, ‘$’

Q14.

Which of the following will result in an error?

>>> p = re.compile(“d”)
>>> p.search(“door”)

>>> p = re.escape(‘hello’)

>>> p = re.subn()

>>> p = re.purge()

Discuss

Answer: (c).>>> p = re.subn()

Q15.

What is the output of the line of code shown below?

re.split('\W+', 'Hello, hello, hello.')

[‘Hello’, ‘hello’, ‘hello.’]

[‘Hello, ‘hello’, ‘hello’]

[‘Hello’, ‘hello’, ‘hello’, ‘.’]

[‘Hello’, ‘hello’, ‘hello’, ”]

Discuss

Answer: (d).[‘Hello’, ‘hello’, ‘hello’, ”]

Q16.

What is the output of the following function?

re.findall("hello world", "hello", 1)

[“hello”]

[ ]

hello

hello world

Discuss

Answer: (b).[ ]

Q17.

Choose the function whose output can be: <_sre.SRE_Match object; span=(4, 8), match='aaaa'>.

>>> re.search(‘aaaa’, “alohaaaa”, 0)

>>> re.match(‘aaaa’, “alohaaaa”, 0)

>>> re.match(‘aaa’, “alohaaa”, 0)

>>> re.search(‘aaa’, “alohaaa”, 0)

Discuss

Answer: (a).>>> re.search(‘aaaa’, “alohaaaa”, 0)

Q18.

Which of the following functions clears the regular expression cache?

re.sub()

re.pos()

re.purge()

re.subn()

Discuss

Answer: (c).re.purge()

Q19.

What is the output of the code shown?

import re
re.ASCII

256

Discuss

Answer: (d).256

Q20.

Which of the following functions results in case insensitive matching?

re.A

re.U

re.I

re.X

Discuss

Answer: (c).re.I

Page 2 of 10

Welcome to the Regular Expressions and Files MCQs Page

Regular Expressions and Files MCQs | Page 2 of 10

Explore more Topics under Python

Variables,Operators and Data Types

Formatting and Decorators

Loops in Python

Strings in Python

Lists in Python

Tuples and Sets

Dictionary and Built in Functions

Mapping Functions and Modules

Classes,Objects and OOPS concepts

Miscellaneous topics in Python

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