ExamAdept

What is the result of the expression set('programming') - set('python')?

A:

{'r', 'g', 'a', 'm', 'i'}

B:

{'p', 'y', 't'}

C:

{'r', 'o', 'm', 'i', 'n'}

D:

{'p', 'r', 'o', 'g', 'a', 'm', 'i', 'n'}

Answer: A

The '-' operator performs the set difference, giving elements that are in the first set but not in the second.

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What is the result of the expression set('abc') ^ set('cde')?

A:

{'a', 'b', 'c', 'd', 'e'}

B:

{'a', 'b'}

C:

{'c'}

D:

{'a', 'b', 'd', 'e'}

Answer: D

The '^' operator performs the symmetric difference, giving elements that are unique to each set.

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What is the purpose of the set.isdisjoint(other_set) method?

A:

Checks if two sets are equal.

B:

Checks if two sets have no elements in common.

C:

Checks if one set is a subset of another.

D:

Checks if one set is a superset of another.

Answer: B

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

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Which method is used to remove and return the last element from a set?

A:

set.pop()

B:

set.remove_last()

C:

set.delete_last()

D:

set.discard_last()

Answer: A

The pop() method removes and returns an arbitrary element, which is the last element in a set.

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What is the result of the expression set([1, 2, 3]) & set([2, 3, 4])?

A:

{1, 2, 3, 4}

B:

{2, 3}

C:

{}

D:

{1, 4}

Answer: B

The '&' operator performs the intersection of two sets, giving elements common to both sets.

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Questions for: Sets