A unique student ID number could be used as a _________, whereas a student's last name would not be suitable because two students might have the last name.
A) Primary Key
B) Sort Key
C) Record Type
D) Data Source

Question

Quizplus · Accepted Answer

A primary key is a unique identifier for each record in a database. Using a student's last name as a primary key could result in errors and confusion if two students have the same last name, but using a unique student ID number ensures that each record is distinct and easily identifiable. A sort key is used for ordering records within a database, not for unique identification. Record type and data source are not relevant to the concept of a primary key.

A Unique Student ID Number Could Be Used as a _________