In a key-value pair, the key is a(n)____ that uniquely identifies the preference.
A) int
B) string
C) float
D) Boolean

Question

Quizplus · Accepted Answer

Keys in key-value pairs are usually string values that are used to identify the preferences. While integers and floats can be used as keys, they are usually not as practical as string values. Booleans are not good candidates as they can only have two values (true or false) and are not unique identifiers.

In a Key-Value Pair, the Key Is A(n)____ That Uniquely