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web.groovymark@gmail.com
- November 29, 2024
Question 41
What is the output of print(bool(0))?
a) True
b) False
c) None
d) Error
Correct Answer: b) False
Explanation: In Python, 0 evaluates to False in a Boolean context.
Question 42
How do you check if a set is a subset of another set in Python?
a) set.is_subset()
b) set <= other_set
c) set.contains(other_set)
d) set.in(other_set)
Correct Answer: b) set <= other_set
Explanation: The <= operator checks if one set is a subset of another.
Question 43
Which method is used to remove an element from a set in Python?
a) remove()
b) delete()
c) discard()
d) Both a and c
Correct Answer: d) Both a and c
Explanation: The remove() and discard() methods both remove an element from a set, but discard() does not raise an error if the element is not found.
Question 44
What does the any() function do in Python?
a) Returns True if all elements in an iterable are true
b) Returns True if any element in an iterable is true
c) Returns False if all elements in an iterable are false
d) Returns False if any element in an iterable is false
Correct Answer: b) Returns True if any element in an iterable is true
Explanation: The any() function returns True if at least one element of the iterable is true.
Question 45
What will be the result of print({1, 2, 3} & {2, 3, 4})?
a) {2, 3}
b) {1, 2, 3, 4}
c) {}
d) Error
Correct Answer: a) {2, 3}
Explanation: The & operator returns the intersection of two sets.
Question 46
Which of the following can be used as a dictionary key in Python?
a) List
b) Tuple
c) Set
d) Dictionary
Correct Answer: b) Tuple
Explanation: Dictionary keys must be immutable types, and tuples are immutable, while lists, sets, and dictionaries are mutable.
Question 47
What is the result of max([10, 20, 30])?
a) 10
b) 20
c) 30
d) Error
Correct Answer: c) 30
Explanation: The max() function returns the largest element from a list.
Question 48
How do you read a file line by line in Python?
a) file.readlines()
b) file.read()
c) file.readline()
d) for line in file:
Correct Answer: d) for line in file:
Explanation: Using a for loop allows you to read a file line by line efficiently.
Question 49
What is the result of print(2 ** 3 ** 2)?
a) 64
b) 512
c) 128
d) 256
Correct Answer: b) 512
Explanation: Exponentiation is evaluated from right to left, so 3 ** 2 is 9, and 2 ** 9 equals 512.
Question 50
What does the strip() method do in Python?
a) Removes leading whitespace
b) Removes trailing whitespace
c) Removes both leading and trailing whitespace
d) Removes all whitespace
Correct Answer: c) Removes both leading and trailing whitespace
Explanation: The strip() method removes whitespace from both the beginning and end of a string.
