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 4 of 10

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Q31.

What is the output of the code shown below?

re.split(r'(a)(t)', 'Maths is a difficult subject')

[‘M a t h s i s a d i f f i c u l t s u b j e c t’]

[‘Maths’, ‘is’, ‘a’, ‘difficult’, ‘subject’]

‘Maths is a difficult subject’

[‘M’, ‘a’, ‘t’, ‘hs is a difficult subject’]

Discuss

Answer: (d).[‘M’, ‘a’, ‘t’, ‘hs is a difficult subject’]

Q32.

The output of the two codes shown below is the same. State whether true or false.

CODE 1
>>> re.split(r'(a)(t)', 'The night sky')
CODE 2
>>> re.split(r'\s+', 'The night sky')

True

False

May be

Can't say

Discuss

Answer: (b).False

Q33.

Which of the following functions returns a dictionary mapping group names to group numbers?

re.compile.group

re.compile.groupindex

re.compile.index

re.compile.indexgroup

Discuss

Answer: (b).re.compile.groupindex

Q34.

Which of the following statements regarding the output of the function re.match is incorrect?

‘pq*’ will match ‘pq’

‘pq?’ matches ‘p’

‘p{4}, q’ does not match ‘pppq’

‘pq+’ matches ‘p’

Discuss

Answer: (d).‘pq+’ matches ‘p’

Q35.

The snippet of code shown below results in an error. State whether true or false.

c=re.compile(r'(\d+)(\[A-Z]+)([a-z]+)')
c.groupindex

True

False

May be

Can't say

Discuss

Answer: (b).False

Q36.

To open a file c:\scores.txt for reading, we use

infile = open(“c:\scores.txt”, “r”)

infile = open(“c:\\scores.txt”, “r”)

infile = open(file = “c:\scores.txt”, “r”)

infile = open(file = “c:\\scores.txt”, “r”)

Discuss

Answer: (b).infile = open(“c:\\scores.txt”, “r”)

Q37.

To open a file c:\scores.txt for writing, we use

outfile = open(“c:\scores.txt”, “w”)

outfile = open(“c:\\scores.txt”, “w”)

outfile = open(file = “c:\scores.txt”, “w”)

outfile = open(file = “c:\\scores.txt”, “w”)

Discuss

Answer: (b).outfile = open(“c:\\scores.txt”, “w”)

Q38.

To open a file c:\scores.txt for appending data, we use

outfile = open(“c:\\scores.txt”, “a”)

outfile = open(“c:\\scores.txt”, “rw”)

outfile = open(file = “c:\scores.txt”, “w”)

outfile = open(file = “c:\\scores.txt”, “w”)

Discuss

Answer: (a).outfile = open(“c:\\scores.txt”, “a”)

Q39.

To read two characters from a file object infile, we use

infile.read(2)

infile.read()

infile.readline()

infile.readlines()

Discuss

Answer: (a).infile.read(2)

Q40.

To read the entire remaining contents of the file as a string from a file object infile, we use

infile.read(2)

infile.read()

infile.readline()

infile.readlines()

Discuss

Answer: (b).infile.read()

Page 4 of 10

Welcome to the Regular Expressions and Files MCQs Page

Regular Expressions and Files MCQs | Page 4 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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