Explore topic-wise MCQs in Python.

This section includes 176 Mcqs, each offering curated multiple-choice questions to sharpen your Python knowledge and support exam preparation. Choose a topic below to get started.

1.

What does the function re.search do?

A. matches a pattern at the start of the string
B. matches a pattern at any position in the string
C. such a function does not exist
D. none of the mentioned
Answer» C. such a function does not exist
Discussion
2.

What does the function re.match do?

A. matches a pattern at the start of the string
B. matches a pattern at any position in the string
C. such a function does not exist
D. none of the mentioned
Answer» B. matches a pattern at any position in the string
Discussion
3.

Which of the following creates a pattern object?

A. re.create(str)
B. re.regex(str)
C. re.compile(str)
D. re.assemble(str)
Answer» D. re.assemble(str)
Discussion
4.

Which module in Python supports regular expressions?

A. re
B. regex
C. pyregex
D. none of the mentioned
Answer» B. regex
Discussion
5.

What will be the output of the following PHP code?

A. rror
B. sername must be all lowercase!
C. sername is all lowercase!
D. o Output is returned
Answer» C. sername is all lowercase!
Discussion
6.

[:alpha:] can also be specified as.

A. A-Za-z0-9]
B. A-za-z]
C. A-z]
D. a-z]
Answer» C. A-z]
Discussion
7.

Which among the following is/are not a metacharacter?1. /a2. /A3. /b4. /B

A. nly 1
B. and 3
C. , 3 and 4
D. and 4
Answer» B. and 3
Discussion
8.

Which of the following would be a potential match for the Perl-based regular expression /fo{2,4}/ ?1. fol2. fool3. fooool4. fooooool

A. nly 1
B. and 3
C. , 3 and 4
D. and 4
Answer» C. , 3 and 4
Discussion
9.

What will be the output of the following PHP code?

A. his is some text that we might like to parse.
B. rray ( [0] => some text that [1] => we might like to parse. )
C. rray ( [0] => this is [1] => some text that [2] => we might like to parse. )
D. 0] => this is [1] => some text that [2] => we might like to parse.
Answer» E.
Discussion
10.

Say we have two compare two strings which of the following function/functions can you use?1. strcmp()2. strcasecmp()3. strspn()4. strcspn()

A. and 2
B. and 4
C. one of the mentioned
D. ll of the mentioned
Answer» E.
Discussion
11.

What will be the output of the following PHP code?

A. email protected]
B. ontact
C. email protected]
D. xamveda.com
Answer» E.
Discussion
12.

What will be the output of the following PHP code?

A. ontact the author of this article at [email protected]@mple.com
B. email protected] the @uthor of this @rticle @t [email protected]@[email protected]
C. ontact the author of this article at [email protected]@[email protected]
D. rror
Answer» D. rror
Discussion
13.

What will be the output of the following PHP code?

A. y name is Will Pitt I am great
B. y name is not Will Pitt I am great
C. y name is Will Pitt I am not great
D. y name is not Will Pitt I am not great
Answer» D. y name is not Will Pitt I am not great
Discussion
14.

What will be the output of the following PHP code?

A. ou like dogs. I hate dogs. We should marry.
B. rray([0]=>You like dogs. I hate dogs. We should marry.)
C. rray([0]=>You like dogs. [1]=>I hate dogs. [2]=>We should marry.)
D. rror
Answer» D. rror
Discussion
15.

Consider the following commands.$ sed -n ‘1,2p’ emp.lst$ sed -n ‘3,$!p’ emp.lstThe output of both commands will be same.

A. True
B. False
C. May be
D. Can't say
Answer» B. False
Discussion
16.

The interval regular expression uses the character _______

A. {
B. }
C. { and }
D. ( and )
Answer» D. ( and )
Discussion
17.

What will be the function of the following command?$ sed ‘s/ *|/|/g’ emp.lst

A. replace * with |
B. replace / with |
C. compress multiple spaces
D. erroneous output
Answer» D. erroneous output
Discussion
18.

The name of the input and output files cannot be same while using sort command.

A. True
B. False
C. May be
D. Can't say
Answer» C. May be
Discussion
19.

For running a UNIX command within awk, we’ve to use ____ function.

A. length
B. substr
C. system
D. split
Answer» D. split
Discussion
20.

awk has some built-in functions which are used for arithmetic and string operations.

A. True
B. False
C. May be
D. Can't say
Answer» B. False
Discussion
21.

Filter’s are a category of commands that take the advantage of shell redirection feature.

A. True
B. False
C. May be
D. Can't say
Answer» B. False
Discussion
22.

For splitting a line or expression into fields, __ is used.

A. foreach
B. for
C. split
D. join
Answer» D. join
Discussion
23.

awk makes a distinction between numeric and string variables.

A. True
B. False
C. May be
D. Can't say
Answer» C. May be
Discussion
24.

What is the output of the following function?

A. [“hello”]
B. [ ]
C. hello
D. hello world
Answer» C. hello
Discussion
25.

What is the output of the code shown?

A. 8
B. 32
C. 64
D. 256
Answer» E.
Discussion
26.

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

A. True
B. False
C. May be
D. Can't say
Answer» C. May be
Discussion
27.

What is the output of the function shown below?

A. ‘YXAAAA’
B. (‘YXAAAA’)
C. (‘AAAAAA’)
D. ‘AAAAAA’
Answer» E.
Discussion
28.

What is the output of the code shown below?

A. (‘welcome’, ‘home’)
B. [‘welcome’, ‘home’]
C. welcome home
D. [‘welcome’ // ‘home’ ]
Answer» D. [‘welcome’ // ‘home’ ]
Discussion
29.

The output of the code shown below is:

A. No outputA new day
B. No outputNo output
C. [‘A’, ‘new’, ‘day’](‘A’, ‘new’, ‘day’)
D. Error[‘A’, ‘new’, ‘day’]
Answer» B. No outputNo output
Discussion
30.

The output of the snippet of code shown below is:

A. Error
B. [”, ‘n1’, ‘3.1, ‘, ‘n2’, ‘5, ‘, ‘n3’, ‘4.565’]
C. [‘n1’, ‘3.1, ‘, ‘n2’, ‘5, ‘, ‘n3’, ‘4.565’]
D. [‘3.1, ‘, ‘5, ‘, ‘4.565’]
Answer» C. [‘n1’, ‘3.1, ‘, ‘n2’, ‘5, ‘, ‘n3’, ‘4.565’]
Discussion
31.

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

A. True
B. False
C. May be
D. Can't say
Answer» B. False
Discussion
32.

What is the use of “a” in file handling?

A. Read
B. Write
C. Append
D. None of the the mentioned
Answer» D. None of the the mentioned
Discussion
33.

What is the output of this program If entered name isCompscibits ?

A. Compscibits
B. Compscibits, Compscibits
C. Comp
D. None of the mentioned
Answer» B. Compscibits, Compscibits
Discussion
34.

Which of the following special characters matches a pattern only at the end of the string?

A. \B
B. \X
C. \Z
D. \A
Answer» D. \A
Discussion
35.

Correct syntax of file.readlines() is?

A. fileObject.readlines( sizehint );
B. fileObject.readlines();
C. fileObject.readlines(sequence)
D. none of the mentioned
Answer» B. fileObject.readlines();
Discussion
36.

To read the next line of the file from a file object infile, we use

A. infile.read(2)
B. infile.read()
C. infile.readline()
D. infile.readlines()
Answer» D. infile.readlines()
Discussion
37.

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

A. ‘^’, ‘$’
B. ‘$’, ‘^’
C. ‘$’, ‘?’
D. ‘?’, ‘^’
Answer» B. ‘$’, ‘^’
Discussion
38.

Which of the following functions clears the regular expression cache?

A. re.sub()
B. re.pos()
C. re.purge()
D. re.subn()
Answer» D. re.subn()
Discussion
39.

Which of the codes shown below results in a match?

A. re.match(‘George(?=Washington)’, ‘George Washington’)
B. re.match(‘George(?=Washington)’, ‘George’)
C. re.match(‘George(?=Washington)’, ‘GeorgeWashington’)
D. re.match(‘George(?=Washington)’, ‘Georgewashington’)
Answer» D. re.match(‘George(?=Washington)’, ‘Georgewashington’)
Discussion
40.

Which is/are the basic I/O connections in file?

A. Standard Input
B. Standard Output
C. Standard Errors
D. All of the mentioned
Answer» E.
Discussion
41.

Which of the following is not a valid mode to open a file?

A. ab
B. rw
C. r+
D. w+
Answer» C. r+
Discussion
42.

Which of the following statements are true ?

A. When you open a file for reading, if the file does not exist, an error occurs
B. When you open a file for writing, if the file does not exist, a new file is created
C. When you open a file for writing, if the file exists, the existing file is overwritten with the new file
D. All of the mentioned
Answer» E.
Discussion
43.

Which of the following is not a valid attribute of a file object (fp)?

A. fp.name
B. fp.closed
C. fp.mode
D. fp.size
Answer» E.
Discussion
44.

Which of the following special characters represents a comment (that is, the contents of the parenthesis are simply ignores)?

A. (?:…)
B. (?=…)
C. (?!…)
D. (?#…)
Answer» E.
Discussion
45.

The special character \B matches the empty string, but only when it is:

A. at the beginning or end of a word
B. not at the beginning or end of a word
C. at the beginning of the word
D. at the end of the word
Answer» C. at the beginning of the word
Discussion
46.

Which of the following is supported by awk?

A. if
B. while
C. for
D. if, while, for
Answer» E.
Discussion
47.

Which of the following is a built-in function for awk?

A. length
B. index
C. size
D. length and index
Answer» B. index
Discussion
48.

The _____ function extracts a substring from a string.

A. length
B. index
C. size
D. substr
Answer» E.
Discussion
49.

If a variable is undefined, its value is ____

A. 0
B. 1
C.
D. garbage
Answer» B. 1
Discussion
50.

print statement is necessary for printing a line.

A. True
B. False
C. May be
D. Can't say
Answer» C. May be
Discussion