ExamAdept

Which method is used to update a set with elements from another set or iterable?

A:

set.merge(other_set)

B:

set.append(other_set)

C:

set.update(other_set)

D:

set.combine(other_set)

Answer: C

The update() method is used to update a set with elements from another set or iterable.

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

A:

5

B:

6

C:

7

D:

Raises a TypeError

Answer: B

The set("python") creates a set of unique characters, and the length is 6.

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

A:

Updates the set with elements from another set.

B:

Removes elements common to both sets.

C:

Returns the symmetric difference between two sets.

D:

Modifies the set with elements unique to each set.

Answer: D

The symmetric_difference_update() method modifies the set with elements unique to each set.

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Which of the following statements about frozensets in Python is correct?

A:

Frozensets are mutable.

B:

Frozensets can be used as dictionary keys.

C:

Frozensets can be modified after creation.

D:

Frozensets support element removal using the remove() method.

Answer: B

Frozensets are immutable and can be used as dictionary keys or elements of other sets.

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Which method is used to find the union of two sets?

A:

set.combine(other_set)

B:

set.union(other_set)

C:

set.merge(other_set)

D:

set.join(other_set)

Answer: B

The union() method is used to find the union of two sets.

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Questions for: Sets