Este Quiz é cronometrado.
Você tem 10 minutos para completar as 20 questões deste quiz..
Keys in dictionary are of mutable type but values can be immutable.
List is enclosed in square brackets
Slicing is used to extract a part of the list
Each key is separated from its value by a colon.
Keys are unique and act as the index.
If a is a dictionary with some key-value pairs, what does a.popitem() do?
Removes an arbitrary element
Removes all the key-value pairs
Removes the key-value pair for the key given as an argument
Invalid method for dictionary
What will be the output of the following Python code snippet? >>> a={1:"A",2:"B",3:"C"} >>> del a
method del doesn’t exist for the dictionary
del deletes the values in the dictionary
del deletes the entire dictionary
del deletes the keys in the dictionary
Which of the statements about dictionary values if false?
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
Values of a dictionary can be a mixture of letters and numbers
What will be the output of the following Python code snippet? a={1:"A",2:"B",3:"C"} print(a.get(5,4))
Error, invalid syntax
A
5
4
What will be the output of the following Python code snippet? a={1:"A",2:"B",3:"C"} print(a.get(1,4))
1
Invalid syntax for get method
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=" ")
1 A 2 B 3 C
1 2 3
A B C
1:”A” 2:”B” 3:”C”
Which of these about a dictionary is false?
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
Suppose list Example is [3, 4, 5, 20, 5, 25, 1, 3], what is list1 after listExample.pop()?
[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]
To add a new element to a list we use which command?
list1.add(5)
list1.append(5)
list1.addLast(5)
list1.addEnd(5)
Suppose list1 is [2, 33, 222, 14, 25], What is list1[-1]?
error
none
25
2
Suppose list1 is [1, 6, 9], what is sum(list1)?
9
16
Suppose list1 is [2445,133,12454,123], what is min(list1)?
2445
123
133
12454
Which of the following commands will create a list?
list1 = list()
list1 = []
list1 = list([1, 2, 3])
all of the mentioned
Suppose list1 is [2, 33, 222, 14, 25], What is list1[:-1]?
[2, 33, 222, 14]
Error
[25, 14, 222, 33, 2]
What will be the output of the following Python code? >>>"Welcome to Python".split()
[“Welcome”, “to”, “Python”]
(“Welcome”, “to”, “Python”)
{“Welcome”, “to”, “Python”}
“Welcome”, “to”, “Python”