In a key-value pair, what is the key that uniquely identifies the preference ?
A) int
B) string
C) float
D) Boolean

Question

Quizplus · Accepted Answer

In a key-value pair, the key is typically a string that uniquely identifies the preference. Int and float may be used as keys in some cases, but they do not provide the same level of uniqueness as a string. Boolean is not used as a key because it only has two possible values and cannot be used to differentiate between multiple preferences.

In a Key-Value Pair, What Is the Key That Uniquely