Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the output of the code shown below? '%s' %((1.23,),)

A. ‘(1.23,)’
B. 1.23,
C. (,1.23)
D. ‘1.23’
Answer» B. 1.23,
Discussion
2.

What is the output of the code shown below? '%.2f%s' % (1.2345, 99)

A. ‘1.2345’, ‘99’
B. ‘1.2399’
C. ‘1.234599’
D. 1.23, 99
Answer» C. ‘1.234599’
Discussion
3.

The output of the code shown below is: '{0:f}, {1:2f}, {2:05.2f}'.format(1.23456, 1.23456, 1.23456)

A. Error
B. ‘1.234560, 1.22345, 1.23’
C. No output
D. ‘1.234560, 1.234560, 01.23’
Answer» E.
Discussion
4.

What is the output of the code shown below? 'The {} side {1} {2}'.format('bright', 'of', 'life')

A. Error
B. ‘The bright side of life’
C. ‘The {bright} side {of} {life}’
D. No output
Answer» B. ‘The bright side of life’
Discussion
5.

What is the output of the code shown below? D=dict(p='san', q='foundry') '{p}{q}'.format(**D)

A. Error
B. sanfoundry
C. san foundry
D. {‘san’, ‘foundry’}
Answer» C. san foundry
Discussion
6.

What is the output of the code shown below? '{a}{b}{a}'.format(a='hello', b='world')

A. ‘hello world’
B. ‘hello’ ‘world’ ‘hello’
C. ‘helloworldhello’
D. ‘hello’ ‘hello’ ‘world’
Answer» D. ‘hello’ ‘hello’ ‘world’
Discussion
7.

What is the output of the following code? hex(255), int('FF', 16), 0xFF

A. [0xFF, 255, 16, 255]
B. (‘0xff’, 155, 16, 255)
C. Error
D. (‘0xff’, 255, 255)
Answer» E.
Discussion
8.

Fill in the blanks: The formatting method {1:

A. first, right
B. second, left
C. first, left
D. second, right
Answer» C. first, left
Discussion
9.

What is the output of the code shown below? l=list('HELLO') p=l[0], l[-1], l[1:3] 'a={0}, b={1}, c={2}'.format(*p)

A. Error
B. “a=’H’, b=’O’, c=(E, L)”
C. “a=H, b=O, c=[‘E’, ‘L’]”
D. Junk value
Answer» D. Junk value
Discussion
10.

What is the output of the code shown? l=list('HELLO') 'first={0[0]}, third={0[2]}'.format(l)

A. ‘first=H, third=L’
B. ‘first=0, third=2’
C. Error
D. ‘first=0, third=L’
Answer» B. ‘first=0, third=2’
Discussion
11.

What is the output of the code shown below? '{0:.2f}'.format(1.234)

A. ‘ff, 255’
B. 255, 255’
C. ‘15f, 15f’
D. Error
Answer» B. 255, 255’
Discussion
12.

What is the output of the code shown? '{a}, {0}, {abc}'.format(10, a=2.5, abc=[1, 2])

A. Error
B. ‘2.5, 10, [1, 2]’
C. 2.5, 10, 1, 2
D. 10, 2.5, [1, 2]’
Answer» C. 2.5, 10, 1, 2
Discussion
13.

What is the output of the code shown below? t = '%(a)s, %(b)s, %(c)s' t % dict(a='hello', b='world', c='universe')

A. hello, world, universe’
B. ‘hellos, worlds, universes’
C. Error
D. hellos, world, universe
Answer» B. ‘hellos, worlds, universes’
Discussion
14.

What is the output of the code shown? s='%s, %s & %s' s%('mumbai', 'kolkata', 'delhi')

A. mumbai kolkata & delhi
B. Error
C. No output
D. mumbai, kolkata & delhi’
Answer» E.
Discussion
15.

The output of the code shown below is: s='{0}, {1}, and {2}' s.format('hello', 'good', 'morning')

A. hello good and morning’
B. ‘hello, good, morning’
C. hello, good, and morning’
D. Error
Answer» D. Error
Discussion
16.

What is the output of the code shown? a='hello' q=10 vars()

A. {‘a’ : ‘hello’, ‘q’ : 10, ……..plus built-in names set by Python….}
B. {……Built in names set by Python……}
C. {‘a’ : ‘hello’, ‘q’ : 10}
D. Error
Answer» B. {……Built in names set by Python……}
Discussion
17.

What is the output of the code shown? x=3.3456789 '%s' %x, str(x)

A. Error
B. (‘3.3456789’, ‘3.3456789’)
C. (3.3456789, 3.3456789)
D. (‘3.3456789’, 3.3456789)
Answer» C. (3.3456789, 3.3456789)
Discussion
18.

What is the output of the code shown below? x=3.3456789 '%-6.2f | %05.2f | %+06.1f' %(x, x, x)

A. ‘3.35 | 03.35 | +003.3’
B. ‘3.3456789 | 03.3456789 | +03.3456789’
C. Error
D. ‘3.34 | 03.34 | 03.34+’
Answer» B. ‘3.3456789 | 03.3456789 | +03.3456789’
Discussion
19.

What is the output of the code shown? x=3.3456789 '%f | %e | %g' %(x, x, x)

A. Error
B. ‘3.3456789 | 3.3456789+00 | 3.345678
C. 3.345678 | 3.345678e+0 | 3.345678’
D. 3.345679 | 3.345679e+00 | 3.34568’
Answer» E.
Discussion
20.

What is the output of the code shown below if the system date is 18th August, 2016? x=1234 res='integers:...%d...%-6d...%06d' %(x, x, x) res

A. ‘integers:…1234…1234 …001234’
B. ‘integers…1234…1234…123400’
C. integers:… 1234…1234…001234’
D. ‘integers:…1234…1234…001234’
Answer» B. ‘integers…1234…1234…123400’
Discussion
21.

The output of which of the codes shown below will be: “There are 4 blue birds.”?

A. There are %g %d birds.’ %4 %blue
B. There are %d %s birds.’ %(4, blue)
C. ‘There are %s %d birds.’ %[4, blue]
D. There are %d %s birds.’ 4, blue
Answer» C. ‘There are %s %d birds.’ %[4, blue]
Discussion
22.

The expression shown below results in an error. State whether this statement is true or false. print("-%5d0",989)

A. Error
B. 1 hello you 4.0
C. 1 hello 4 you
D. 1 4 hello you
Answer» D. 1 4 hello you
Discussion
23.

What is the output of this expression if x=22.19? print("%5.2f"%x)

A. 22.1900
B. 22.00000
C. 22.19
D. 22.20
Answer» D. 22.20
Discussion
24.

What is the result of the expression shown below if x=56.236? print("%.2f"%x)

A. 56.00
B. 56.24
C. 56.23
D. 0056.236
Answer» C. 56.23
Discussion
25.

What is the output of this expression if X= -122? print("-%06d"%x)

A. -000122
B. 000122
C. –00122
D. -00122
Answer» D. -00122
Discussion
26.

Which of the following formatting options can be used in order to add ‘n’ blank spaces after a given string ‘S’?

A. print(“-ns”%S)
B. print(“-ns”%S)
C. print(“%ns”%S)
D. print(“%-ns”%S)
Answer» E.
Discussion
27.

What is the output of the following expression if X=345? print(“%06d”%X)

A. 345000
B. 000345
C. 000000345
D. 345000000
Answer» C. 000000345
Discussion
28.

What is the output of the following expression if x=456? print("%-06d"%x)

A. 000456
B. 456000
C. 456
D. error
Answer» E.
Discussion
29.

Consider the snippet of code shown below and predict the output. X=”san-foundry” print(“%56s”,X)

A. 56 blank spaces before san-foundry
B. 56 blank spaces before san and foundry
C. 56 blank spaces after san-foundry
D. no change
Answer» B. 56 blank spaces before san and foundry
Discussion
30.

What is the output of the code snippet shown below? X=”hi” print(“05d”%X)

A. 00000hi
B. 000hi
C. hi000
D. error
Answer» E.
Discussion
31.

The output of the line of code shown below is: not(1030)

A. True
B. False
C. Error
D. No output
Answer» C. Error
Discussion
32.

Which of the following Boolean expressions is not logically equivalent to the other three?

A. not(-6<0 or-6>10)
B. -6>=0 and -6<=10
C. not(-6<10 or-6==10)
D. not(-6>10 or-6==10)
Answer» E.
Discussion
33.

What is the output of the code shown below? if (9 < 0) and (0 < -9): print("hello") elif (9 > 0) or False: print("good") else: print("bad")

A. error
B. hello
C. good
D. bad
Answer» D. bad
Discussion
34.

What is the output of the code shown below? l=[1, 0, 2, 0, 'hello', '', []] list(filter(bool, l))

A. Error
B. [1, 0, 2, 0, ‘hello’, ”, []]
C. [1, 0, 2, ‘hello’, ”, []]
D. [1, 0, 2, ‘hello’, ”, []]
Answer» E.
Discussion
35.

What is the output of the code shown? ['f', 't'][bool('spam')]

A. t
B. f
C. No output
D. Error
Answer» B. f
Discussion
36.

What is the output of the code shown below? not(3>4) not(1&1)

A. True True
B. True False
C. False True
D. False False
Answer» C. False True
Discussion
37.

What is the output of the snippet of code shown below? ['hello', 'morning'][bool('')]

A. error
B. no output
C. hello
D. morning
Answer» D. morning
Discussion
38.

The output of the snippet of code shown below? bool(‘False’) bool()

A. True True
B. False True
C. False False
D. True False
Answer» E.
Discussion
39.

What is the value of the expression: ~100?

A. 101
B. -101
C. 100
D. -100
Answer» C. 100
Discussion
40.

What is the two’s complement of -44?

A. 1011011
B. 11010100
C. 11101011
D. 10110011
Answer» C. 11101011
Discussion
41.

Which of the following expressions can be used to multiply a given number ‘a’ by 4?

A. a<<2
B. a<<4
C. a<<4
D. a>>4
Answer» B. a<<4
Discussion
42.

What is the value of this expression: bin(10-2)+bin(12^4)

A. 0b10000
B. 0b10001000
C. 0b1000b1000
D. 0b10000b1000
Answer» E.
Discussion
43.

Any odd number on being AND-ed with ________ always gives 1. Hint: Any even number on being AND-ed with this value always gives 0.

A. 10
B. 2
C. 1
D. 0
Answer» D. 0
Discussion
44.

The result of the expression shown below is: 4^12

A. 2
B. 4
C. 8
D. 12
Answer» D. 12
Discussion
45.

Bitwise _________ gives 1 if either of the bits is 1 and 0 when both of the bits are 1.

A. OR
B. AND
C. XOR
D. NOT
Answer» D. NOT
Discussion
46.

The one’s complement of 110010101 is:

A. The one’s complement of 110010101 is:
B. 110010101
C. 001101011
D. 110010100
Answer» B. 110010101
Discussion
47.

What is the result of the expression: 0x35 | 0x75

A. 115
B. 116
C. 117
D. 118
Answer» D. 118
Discussion
48.

What is the value of this expression? bin(0x8)

A. ‘0bx1000’
B. 8
C. 1000
D. ‘0b1000’
Answer» E.
Discussion
49.

Which of the following represents the bitwise XOR operator?

A. &
B. ^
C. |
D. !
Answer» C. |
Discussion
50.

What is the result of the expression if x=15 and y=12: x & y

A. b1101
B. 0b1101
C. 12
D. 1101
Answer» D. 1101
Discussion