MCQs for Python Dictionaries: Exam-Style Practice Page-4 section-1

31.

What will be the output of the following Python code?

>>> import collections
>>> a=collections.OrderedDict((str(x),x) for x in range(3))
>>> a

A. {'2':2, '0':0, '1':1}

B. OrderedDict([('0', 0), ('1', 1), ('2', 2)])

C. An exception is thrown

D. ' '

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32.

What will be the output of the following Python code?

>>> a={}
>>> a.fromkeys([1,2,3],"check")

A. Syntax error

B. {1:"check",2:"check",3:"check"}

C. "check"

D. {1:None,2:None,3:None}

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33.

What will be the output of the following Python code snippet?

d1 = {"john":40, "peter":45}
d2 = {"john":466, "peter":45}
d1 == d2

A. True

B. False

C. None

D. Error

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34.

What will be the output of the following Python code snippet?

d = {"john":40, "peter":45}
print(list(d.keys()))

A. ["john", "peter"]

B. ["john":40, "peter":45]

C. ("john", "peter")

D. ("john":40, "peter":45)

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35.

What will be the output of the following Python code snippet?

test = {1:'A', 2:'B', 3:'C'}
test = {}
print(len(test))

A. 0

B. None

C. 3

D. An exception is thrown

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36.
Which of the following statements create a dictionary?

A. d = {}

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

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

D. All of the mentioned

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37.

What will be the output of the following Python code snippet?

a={1:"A",2:"B",3:"C"}
for i,j in a.items():
    print(i,j,end=" ")

A. 1 A 2 B 3 C

B. 1 2 3

C. A B C

D. 1:"A" 2:"B" 3:"C"

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38.

What will be the output of the following Python code snippet?

test = {1:'A', 2:'B', 3:'C'}
del test[1]
test[1] = 'D'
del test[2]
print(len(test))

A. 0

B. 2

C. Error as the key-value pair of 1:'A' is already deleted

D. 1

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39.

What will be the output of the following Python code?

>>> a={1:"A",2:"B",3:"C"}
>>> a.items()

A. Syntax error

B. dict_items([('A'), ('B'), ('C')])

C. dict_items([(1,2,3)])

D. dict_items([(1, 'A'), (2, 'B'), (3, 'C')])

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40.
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

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31.
What will be the output of the following Python code?

`>>> import collections >>> a=collections.OrderedDict((str(x),x) for x in range(3)) >>> a`

Answer & Solution

32.
What will be the output of the following Python code?

`>>> a={} >>> a.fromkeys([1,2,3],"check")`

Answer & Solution

33.
What will be the output of the following Python code snippet?

`d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 == d2`

Answer & Solution

34.
What will be the output of the following Python code snippet?

`d = {"john":40, "peter":45} print(list(d.keys()))`

Answer & Solution

35.
What will be the output of the following Python code snippet?

`test = {1:'A', 2:'B', 3:'C'} test = {} print(len(test))`

Answer & Solution

36.
Which of the following statements create a dictionary?

Answer & Solution

37.
What will be the output of the following Python code snippet?

`a={1:"A",2:"B",3:"C"} for i,j in a.items(): print(i,j,end=" ")`

Answer & Solution

38.
What will be the output of the following Python code snippet?

`test = {1:'A', 2:'B', 3:'C'} del test[1] test[1] = 'D' del test[2] print(len(test))`

Answer & Solution

39.
What will be the output of the following Python code?

`>>> a={1:"A",2:"B",3:"C"} >>> a.items()`

Answer & Solution

40.
Which of the statements about dictionary values if false?

Answer & Solution

MCQs for Python Dictionaries: Exam-Style Practice

31. What will be the output of the following Python code? >>> import collections >>> a=collections.OrderedDict((str(x),x) for x in range(3)) >>> a

Answer & Solution

32. What will be the output of the following Python code? >>> a={} >>> a.fromkeys([1,2,3],"check")

Answer & Solution

33. What will be the output of the following Python code snippet? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 == d2

Answer & Solution

34. What will be the output of the following Python code snippet? d = {"john":40, "peter":45} print(list(d.keys()))

Answer & Solution

35. What will be the output of the following Python code snippet? test = {1:'A', 2:'B', 3:'C'} test = {} print(len(test))

Answer & Solution

36. Which of the following statements create a dictionary?

Answer & Solution

37. What will be the output of the following Python code snippet? a={1:"A",2:"B",3:"C"} for i,j in a.items(): print(i,j,end=" ")

Answer & Solution

38. What will be the output of the following Python code snippet? test = {1:'A', 2:'B', 3:'C'} del test[1] test[1] = 'D' del test[2] print(len(test))

Answer & Solution

39. What will be the output of the following Python code? >>> a={1:"A",2:"B",3:"C"} >>> a.items()

Answer & Solution

40. Which of the statements about dictionary values if false?

Answer & Solution

31.
What will be the output of the following Python code?

`>>> import collections >>> a=collections.OrderedDict((str(x),x) for x in range(3)) >>> a`

32.
What will be the output of the following Python code?

`>>> a={} >>> a.fromkeys([1,2,3],"check")`

33.
What will be the output of the following Python code snippet?

`d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 == d2`

34.
What will be the output of the following Python code snippet?

`d = {"john":40, "peter":45} print(list(d.keys()))`

35.
What will be the output of the following Python code snippet?

`test = {1:'A', 2:'B', 3:'C'} test = {} print(len(test))`

36.
Which of the following statements create a dictionary?

37.
What will be the output of the following Python code snippet?

`a={1:"A",2:"B",3:"C"} for i,j in a.items(): print(i,j,end=" ")`

38.
What will be the output of the following Python code snippet?

`test = {1:'A', 2:'B', 3:'C'} del test[1] test[1] = 'D' del test[2] print(len(test))`

39.
What will be the output of the following Python code?

`>>> a={1:"A",2:"B",3:"C"} >>> a.items()`

40.
Which of the statements about dictionary values if false?