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PHYTHON - Objective Type Questions(MCQs)& Answers

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Free download in PDF c++ inheritence Multiple Choice Questions(MCQs) & Answers. These multiple choice questions on Computer Science are very useful for NIELIT, BCA, B.Sc. MCA, M.Sc. B.Tech, M.Tech, BE, ME students an interview for various positions like Web Developer, System Analyst etc.
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(21) Which of the following statements is used to create an empty set?
[A] { }
[B] set()
[C] [ ].
[D] ( )
Answer: set()
(22) What is the output of the following piece of code when executed in the python shell?

a={1,2,3}

a.intersection_update({2,3,4,5})

a

[A] {2,3}
[B] Error, duplicate item present in list
[C] Error, no method called intersection_update for set data type
[D] {1,4,5}
Answer: {2,3}

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(23) Which of the following lines of code will result in an error?
[A] s={abs}
[B] s={4, ‘abc’, (1,2)}
[C] s={2, 2.2, 3, ‘xyz’}
[D] s={san}
Answer: s={san}
(24) What is the output of the code shown below?

s=set([1, 2, 3])

s.union([4, 5])

s|([4, 5])

[A] {1, 2, 3, 4, 5}{1, 2, 3, 4, 5}
[B] Error {1, 2, 3, 4, 5}
[C] {1, 2, 3, 4, 5} Error
[D] Error Error
Answer: {1, 2, 3, 4, 5} Error
(25) What is the output of the line of code shown below, if s1= {1, 2, 3}?

s1.issubset(s1)

[A] True
[B] Error
[C] No output
[D] False
Answer: True
(26) Suppose t = (1, 2, 4, 3), which of the following is incorrect?
[A] print(t[3])
[B] t[3] = 45
[C] print(max(t))
[D] print(len(t))
Answer: t[3] = 45
(27)

What will be the output?

d = {"john":40, "peter":45}

d["john"]

[A] 40
[B] 45
[C] “john”
[D] “peter”
Answer: 40
(28) What is the output of the following piece of code when executed in Python shell?

a=("Check")*3

a

[A] (‘Check’,’Check’,’Check’)
[B] * Operator not valid for tuples
[C] (‘CheckCheckCheck’)
[D] Syntax error
Answer: (‘CheckCheckCheck’)
(29) Is the following piece of code valid?

a=2,3,4,5

a

[A] Yes, 2 is printed
[B] Yes, [2,3,4,5] is printed
[C] No, too many values to unpack
[D] Yes, (2,3,4,5) is printed
Answer: Yes, (2,3,4,5) is printed
(30) What is the output of the following code?

a,b=6,7

a,b=b,a

a,b

[A] (6,7)
[B] Invalid syntax
[C] (7,6)
[D] Nothing is printed
Answer: (7,6)
31 Which of the following is a Python tuple?
[A] [1, 2, 3]
[B] (1, 2, 3)
[C] {1, 2, 3}
[D] {}
Answer: (1, 2, 3)
32 Suppose t = (1, 2, 4, 3), which of the following is incorrect?
[A] print(t[3])
[B] t[3] = 45
[C] print(max(t))
[D] print(len(t))
Answer: t[3] = 45
33 What will be the output of the following Python code?

>>>t=(1,2,4,3)

>>>t[1:3]

[A] (1, 2)
[B] (1, 2, 4)
[C] (2, 4)
[D] (2, 4, 3)
Answer: (2, 4)
34 What will be the output of the following Python code?

>>>t=(1,2,4,3)

>>>t[1:-1]

[A] (1, 2)
[B] (1, 2, 4)
[C] (2, 4)
[D] (2, 4, 3)
Answer: (2, 4)
35 What will be the output of the following Python code?

>>>t = (1, 2, 4, 3, 8, 9)

>>>[t[i] for i in range(0, len(t), 2)]

[A] [2, 3, 9]
[B] [1, 2, 4, 3, 8, 9]
[C] [1, 4, 8]
[D] (1, 4, 8)
Answer: [1, 4, 8]
36 What will be the output of the following Python code?

d = {"john":40, "peter":45}

d["john"]

[A] 40
[B] 45
[C] “john”
[D] “peter”
Answer: 40
37 What will be the output of the following Python code?

>>>t = (1, 2)

>>>2 * t

[A] (1, 2, 1, 2)
[B] [1, 2, 1, 2]
[C] (1, 1, 2, 2)
[D] [1, 1, 2, 2]
Answer: (1, 2, 1, 2)
38 What will be the output of the following Python code?

>>>t1 = (1, 2, 4, 3)

>>>t2 = (1, 2, 3, 4)

>>>t1 < t2

[A] True
[B] False
[C] Error
[D] None
Answer: False
39 What will be the output of the following Python code?

>>>my_tuple = (1, 2, 3, 4)

>>>my_tuple.append( (5, 6, 7) )

>>>print len(my_tuple)

[A] 1
[B] 2
[C] 5
[D] Error
Answer: Error
40 What will be the output of the following Python code?

numberGames = {}

numberGames[(1,2,4)] = 8

numberGames[(4,2,1)] = 10

numberGames[(1,2)] = 12

sum = 0

for k in numberGames:

sum += numberGames[k]

print len(numberGames) + sum

[A] 30
[B] 24
[C] 33
[D] 12
Answer: 33

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