ExamAdept

Which method is used to remove a specific element from a set, raising an error if the element is not present?

A:

set.remove(element)

B:

set.discard(element)

C:

set.exclude(element)

D:

set.delete(element)

Answer: A

The remove() method removes a specific element, raising an error if the element is not present.

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How do you find the elements common to multiple sets?

A:

set.intersection_all()

B:

set.common()

C:

set.common_elements()

D:

set.intersection(*sets)

Answer: D

The intersection() method with the asterisk (*) operator is used to find common elements in multiple sets.

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What is the result of the expression set('python').isdisjoint(set('java'))?

A:

True

B:

False

C:

Raises a TypeError

D:

None of the above

Answer: A

The isdisjoint() method returns True if two sets have no elements in common.

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What does the set.union(other_set) method do?

A:

Finds the common elements between two sets.

B:

Combines two sets and removes duplicate elements.

C:

Returns the elements that are unique to each set.

D:

Checks if two sets are equal.

Answer: B

The union() method combines two sets and removes duplicate elements.

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What is the result of the expression len(set())?

A:

0

B:

1

C:

Raises a TypeError

D:

None of the above

Answer: A

An empty set has a length of 0.

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Questions for: Sets