Python Strings, List, Tuple, Dictionary, Module MCQs with Answers Set 01

Question. What will be the output of the following Python code?
str1 = 'python'
str2 = ','
str3 = 'string'
str1[-1:]
(a) nthopy
(b) python
(c) h
(d) n
Answer: (d)

Question. What will be the output of the following Python statement?(python 3.xx)
print(format("Python", "10s"), end = '#')
print(format(100, "4d"), end = '#')
print(format(900.666, "3.2f"))
(a) Python# 100#900.66
(b) Python#100# 900.67
(c) Python # 100#900.67
(d) Python#100#900.67
Answer: (c)

Question. What will be the output of the following Python code?
print("mnopqr".find("op"))
(a) True
(b) 2
(c) 3
(d) None of the mentioned
Answer: (b)

Question. What will be the output of the following Python code?
print('pqrstv'.partition('rs'))
(a) (‘pq’, ‘tv’)
(b) (‘pqtv’)
(c) ('pq', 'rs', 'tv')
(d) 2
Answer: (c)

Question. What will be the output of the following Python code?
print('pqqrppqpqq'.lstrip('pqq'))
(a) error
(b) rppqpqq
(c) r
(d) pqr
Answer: (b)

Question. What will be the output of the following Python code?
example = "world"
example.find("d")
(a) Error
(b) -1
(c) 4
(d) 0
Answer: (c)

Question. What will be the output of the following Python code?
print("xyz. PQR".capitalize())
(a) xyz. PQR
(b) XYZ. PQR
(c) Xyz. pqr
(d) Xyz. Pqr
Answer: (c)

Question. What will be the output of the following Python code?
print("Python {0[0]} and {0[1]}".format(('fff', 'bbb'))).
(a) Python fff and bbb
(b) Python (‘fff’, ‘bbb’) and (‘fff’, ‘bbb’)
(c) Error
(d) None of the mentioned
Answer: (a)

Question. The format function, when applied on a string returns ________
(a) Error
(b) int
(c) bool
(d) str
Answer: (d)

Question. What will be the output of the following Python code?
print('pqqpqqrqrpq'.lstrip('pqq'))
(a) rppq
(b) rq
(c) rppqrqrp
(d) none of the mentioned
Answer: (a)

Question. What will be the output of the following Python code?
print('xyz'.encode())
(a) xyz
(b) 'xyz'
(c) b’xyz’
(d) h’xyz’
Answer: (c)

Question. What will be the output of the following Python code?
print("Python {name1} and {name2}".format('fff', 'bin'))
(a) Python fff and bin
(b) Python {name1} and {name2}
(c) Error
(d) Python and
Answer: (c)

Question. What will be the output of the following Python code?
print("pq\trs\ttu".expandtabs(4))
(a) pq rs tu
(b) pqrstu
(c) pq\trs\ttu
(d) pq rs tu
Answer: (a)

Question. What will be the output of the following Python code?
print("Python {0} and {1}".format('fff', 'bin'))
(a) Python fff and bin
(b) Python {0} and {1} fff bin
(c) Error
(d) Python 0 and 1
Answer: (a)

Question. What will be the output of the following Python code?
print("pqqrpqrprpqq".count('qq', 1))
(a) 2
(b) 0
(c) 1
(d) none of the mentioned
Answer: (a)

Question. What will be the output of the following Python code?
print('xy,14'.isalnum())
(a) True
(b) False
(c) None
(d) Error
Answer: (b)

Question. What will be the output of the following Python code snippet?
print('abbabbababaab'.replace('ab', '10', 0))
(a) abbabbababaab
(b) 10b10b1010a10
(c) 12babbababaab
(d) babbababaab12
Answer: (a)

Question. What will be displayed by print(ord('b') - ord('a'));?
(a) 1
(b) 0
(c) -1
(d) 2
Answer: (a)

Question. Suppose y is 345.3546, what is format(y, “10.3f”) (_ indicates space).
(a) __345.355
(b) ___345.355
(c) ____345.355
(d) _____345.354
Answer: (b)

Question. What will be the output of the following Python code?
x={f: 'X' + str(f) for f in range(5)}
print(x)
(a) An exception is thrown
(b) {0: 'X0', 1: 'X1', 2: 'X2', 3: 'X3', 4: 'X4'}
(c) {0: ‘X’, 1: ‘X’, 2: ‘X’, 3: ‘X’, 4: ‘X’}
(d) {0: ‘0’, 1: ‘1’, 2: ‘2’, 3: ‘3’, 4: ‘4’}
Answer: (b)

Question. What will be the output of the following Python code snippet?
x = {"jack":40, "henry":45}
print("jack" in x)
(a) True
(b) False
(c) None
(d) Error
Answer: (a)

Question. What will be the output of the following Python code?
x={"x":1,"y":2,"z":3}
y=dict(zip(x.values(),x.keys()))
print(y)
(a) {1: 'x', 2: 'y', 3: 'z'}
(b) An exception is thrown
(c) {‘x’: ‘y’: ‘z’: }
(d) {1: ‘x’, 2: ‘y’, 3: ‘z’}
Answer: (a)

Question. What will be the output of the following Python code snippet?
import collections
x=collections.Counter([3,3,4,4,4,5])
y=collections.Counter([3,3,4,5,5])
print(x|y)
(a) Counter({4: 4, 3: 3, 5: 3})
(b) Counter({4: 3, 3: 2, 5: 2})
(c) Counter({4: 3})
(d) Counter({5: 3})
Answer: (b)

Question. What will be the output of the following Python code snippet?
x={}
x['x']=2
x['y']=[3,4,5]
print(x)
(a) {'x': 2, 'y': [3, 4, 5]}
(b) Exception is thrown
(c) {‘x’: [2], ‘y’: 3}
(d) {‘y’: [2], ‘x’: [3]}
Answer: (a)

Question. What will be the output of the following Python code snippet?
t = {1:'J', 2:'K', 3:'L'}
t = {}
print(len(t))
(a) 0
(b) None
(c) An exception is thrown
(d) 3
Answer: (a)

Question. What will be the output of the following Python code?
f={}
print(f.fromkeys([2,3,4],"check"))
(a) Syntax error
(b) “check”
(c) {2: 'check', 3: 'check', 4: 'check'}
(d) {2:None,3:None,4:None}
Answer: (c)

Question. What will be the output of the following Python code?
x={1:"P",2:"Q",3:"R"}
x.clear()
print(x)
(a) None
(b) { None:None, None:None, None:None}
(c) {1:None, 2:None, 3:None}
(d) { }
Answer: (d)

Question. If b is a dictionary, what does any(b) do?
(a) Returns True if any key of the dictionary is true
(b) Returns False if dictionary is empty
(c) Returns True if all keys of the dictionary are true
(d) Method any() doesn’t exist for dictionary
Answer: (a)

Question. What will be the output of the following Python code snippet?
import collections
x=collections.Counter([2,2,3,4])
y=collections.Counter([2,3,3,4,4,4])
print(x&y)
(a) Counter({2: 15, 4: 1, 3: 1})
(b) Counter({2: 1, 3: 1, 4: 1})
(c) Counter({4: 2})
(d) Counter({4: 1})
Answer: (b)

Question. What will be the output of the following Python code snippet?
x = {}
x[1] = 1
x['1'] = 2
x[1]=x[1]+1
count = 0
for f in x:
    count += x[f]
print(count)
(a) 1
(b) 2
(c) 4
(d) Error, the keys can’t be a mixture of letters and numbers
Answer: (c)

Question. What will be the output of the following Python code snippet?
x = {}
x[2] = 2
x['2'] = 3
x[2.0]=5
count = 0
for f in x:
    count += x[f]
print(count)
(a) 8
(b) 6
(c) 5
(d) An exception is thrown
Answer: (a)

Question. What will be the output of the following Python code snippet?
x={1:"P",2:"Q",3:"R"}
del x
(a) method del doesn’t exist for the dictionary
(b) del deletes the values in the dictionary
(c) del deletes the entire dictionary
(d) del deletes the keys in the dictionary
Answer: (c)

Question. What will be the output of the following Python code snippet?
import collections
y=collections.Counter([3,3,4,5,5,5])
print(y.most_common(2))
(a) Counter({5: 4, 4: 4, 3: 2})
(b) {3:2}
(c) [(5, 3), (3, 2)]
(d) {4:3}
Answer: (c)

Question. What will be the output of the following Python code?
count={}
count[(2,3,5)] = 6
count[(5,3,2)] = 8
count[(2,3)] = 7
count[(5,3,2)] = 3
tot = 0
for f in count:
    tot=tot+count[f]
print(len(count)+tot)
(a) 25
(b) 17
(c) 19
(d) Tuples can’t be made keys of a dictionary
Answer: (c)

Question. What will be the output of the following Python code?
x={1:"P",2:"Q",3:"R"}
y={4:"S",5:"T"}
x.update(y)
print(x)
(a) {1: 'P', 2: 'Q', 3: 'R', 4: 'S', 5: 'T'}
(b) Method update() doesn’t exist for dictionaries
(c) {1: ‘P’, 2: ‘Q’, 3: ‘R’}
(d) {4: ‘S’, 5: ‘T’}
Answer: (a)

Question. What will be the output of the following Python code snippet?
numbers = {}
letters = {}
comb = {}
numbers[2] = 90
numbers[3] = 9
letters[5] = 'A'
comb['Numbers'] = numbers
comb['Letters'] = letters
print(comb)
(a) Error, dictionary in a dictionary can’t exist
(b) ‘Numbers’: {2: 90, 3: 9}
(c) {'Numbers': {2: 90, 3: 9}, 'Letters': {5: 'A'}}
(d) {‘Numbers’: {2: 90}, ‘Letters’: {5: ‘A’}}
Answer: (c)

Question. What will be the output of the following Python code?
x={}
x[3]=2
x[2]=[3,4,5]
print(x[2][2])
(a) [3,4,5]
(b) 5
(c) 3
(d) An exception is thrown
Answer: (b)

Question. What will be the output of the following Python code snippet?
import collections
x=collections.Counter([2,2,3,4,4,5,5,5])
print(x)
(a) {2,3,4,5}
(b) Counter({5, 4, 3, 2})
(c) Counter({5: 3, 2: 2, 4: 2, 3: 1})
(d) {5: 3, 2: 2, 4: 2, 3: 1}
Answer: (c)

Question. What will be the output of the following Python code?
f=dict()
f[1]
(a) An exception is thrown since the dictionary is empty
(b) ‘ ‘
(c) 1
(d) Error
Answer: (d)

Question. What will be the output of the following Python code snippet?
f={1:"X",2:"Y",3:"Z"}
print(f.setdefault(3))
(a) {1: ‘X’, 2: ‘Y’, 3: ‘Z’}
(b) Z
(c) {1: 3, 2: 3, 3: 3}
(d) No method called setdefault() exists for dictionary
Answer: (b)

Question. Which of the following is not a declaration of the dictionary?
(a) {1: ‘A’, 2: ‘B’}
(b) dict([[1,”A”],[2,”B”]])
(c) {1,”A”,2”B”}
(d) { }
Answer: (c)

Question. Suppose x = {“jack”:30, “henry”:35}. To obtain the number of entries in dictionary which command do we use?
(a) x.size()
(b) len(x)
(c) size(x)
(d) x.len()
Answer: (b)

Question. What will be the output of the following Python code?
x={2:6,3:4,4:5}
x.pop(3)
print(x)
(a) {2: 6}
(b) {2: 6, 4: 5}
(c) Error, syntax error for pop() method
(d) {2: 6, 3: 4}
Answer: (b)

Question. What will be the output of the following Python code snippet?
x1 = {"jack":30, "john":35}
x2 = {"jack":355, "john":35}
print(x1 == x2)
(a) True
(b) False
(c) None
(d) Error
Answer: (b)

Question. Suppose x = {“jack”:30, “henry”:35}, to delete the entry for “jack” what command do we use?
(a) x.delete(“jack”:30)
(b) x.delete(“jack”)
(c) del x[“jack”]
(d) del x(“jack”:30)
Answer: (c)

Question. Which of the statements about dictionary values if false?
(a) More than one key can have the same value
(b) The values of the dictionary can be accessed as dict[key]
(c) Values of a dictionary must be unique
(d) Values of a dictionary can be a mixture of letters and numbers
Answer: (c)

Question. What will be the output of the following Python code?
x={'Y':3,'X':5,'Z':7}
print(sorted(x))
(a) ['X', 'Y', 'Z']
(b) [‘Y’,’Z’,’X’]
(c) [3,5,7]
(d) [7,5,3]
Answer: (a)

Question. What will be the output of the following Python code snippet?
f={1:"P",2:"Q",3:"R"}
f.setdefault(4,"S")
print(f)
(a) {1: 'P', 2: 'Q', 3: 'R', 4: 'S'}
(b) Error
(c) None
(d) [1,2,3,4]
Answer: (a)

Question. What will be the output of the following Python code?
x={1:"P",2:"Q",3:"R"}
y=x.copy()
y[2]="S"
print(x)
(a) {1: 'P', 2: 'Q', 3: 'R'}
(b) {1: ‘P’, 2: ‘S’, 3: ‘R’}
(c) Error, copy() method doesn’t exist for dictionaries
(d) “None” is printed
Answer: (a)