21322504
Descripción
Test por Aparna Dhirde, actualizado hace más de 1 año
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Creado por Aparna Dhirde
hace más de 4 años
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Pregunta 1
Pregunta
Keys in dictionary are of mutable type but values can be immutable.
Respuesta
- True
- False
Pregunta 2
Pregunta
List is enclosed in square brackets
Respuesta
- True
- False
Pregunta 3
Pregunta
Slicing is used to extract a part of the list
Respuesta
- True
- False
Pregunta 4
Pregunta
Each key is separated from its value by a colon.
Respuesta
- True
- False
Pregunta 5
Pregunta
Keys are unique and act as the index.
Respuesta
- True
- False
Pregunta 6
Pregunta
If a is a dictionary with some key-value pairs, what does a.popitem() do?
Respuesta
-
Removes an arbitrary element
-
Removes all the key-value pairs
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Removes the key-value pair for the key given as an argument
-
Invalid method for dictionary
Pregunta 7
Pregunta
What will be the output of the following Python code snippet?
>>> a={1:"A",2:"B",3:"C"}
>>> del a
Respuesta
-
method del doesn’t exist for the dictionary
-
del deletes the values in the dictionary
-
del deletes the entire dictionary
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del deletes the keys in the dictionary
Pregunta 8
Pregunta
Which of the statements about dictionary values if false?
Respuesta
-
More than one key can have the same value
-
The values of the dictionary can be accessed as dict[key]
-
Values of a dictionary must be unique
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Values of a dictionary can be a mixture of letters and numbers
Pregunta 9
Pregunta
What will be the output of the following Python code snippet?
a={1:"A",2:"B",3:"C"}
print(a.get(5,4))
Respuesta
-
Error, invalid syntax
-
A
-
5
-
4
Pregunta 10
Pregunta
What will be the output of the following Python code snippet?
a={1:"A",2:"B",3:"C"}
print(a.get(1,4))
Respuesta
-
1
-
A
-
4
-
Invalid syntax for get method
Pregunta 11
Pregunta
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=" ")
Respuesta
-
1 A 2 B 3 C
-
1 2 3
-
A B C
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1:”A” 2:”B” 3:”C”
Pregunta 12
Pregunta
Which of these about a dictionary is false?
Respuesta
-
The values of a dictionary can be accessed using keys
-
The keys of a dictionary can be accessed using values
-
Dictionaries aren’t ordered
-
Dictionaries are mutable
Pregunta 13
Pregunta
Suppose list Example is [3, 4, 5, 20, 5, 25, 1, 3], what is list1 after listExample.pop()?
Respuesta
-
[3, 4, 5, 20, 5, 25, 1]
-
[1, 3, 3, 4, 5, 5, 20, 25]
-
[3, 5, 20, 5, 25, 1, 3]
-
[1, 3, 4, 5, 20, 5, 25]
Pregunta 14
Pregunta
To add a new element to a list we use which command?
Respuesta
-
list1.add(5)
-
list1.append(5)
-
list1.addLast(5)
-
list1.addEnd(5)
Pregunta 15
Pregunta
Suppose list1 is [2, 33, 222, 14, 25], What is list1[-1]?
Respuesta
-
error
-
none
-
25
-
2
Pregunta 16
Pregunta
Suppose list1 is [1, 6, 9], what is sum(list1)?
Respuesta
-
1
-
9
-
16
-
error
Pregunta 17
Pregunta
Suppose list1 is [2445,133,12454,123], what is min(list1)?
Respuesta
-
2445
-
123
-
133
-
12454
Pregunta 18
Pregunta
Which of the following commands will create a list?
Respuesta
-
list1 = list()
-
list1 = []
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list1 = list([1, 2, 3])
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all of the mentioned
Pregunta 19
Pregunta
Suppose list1 is [2, 33, 222, 14, 25], What is list1[:-1]?
Respuesta
-
[2, 33, 222, 14]
-
Error
-
25
-
[25, 14, 222, 33, 2]
Pregunta 20
Pregunta
What will be the output of the following Python code?
>>>"Welcome to Python".split()
Respuesta
-
[“Welcome”, “to”, “Python”]
-
(“Welcome”, “to”, “Python”)
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{“Welcome”, “to”, “Python”}
-
“Welcome”, “to”, “Python”
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