The Primary Key for M:N Relationship Tables

question 13

Multiple Choice

The primary key for M:N relationship tables

• A)is a single attribute.
• B)always consists of two attributes.
• C)is the primary key of the most important entity linked to that relationship.
• D)does not exist.Many-to-many relationship tables only use foreign keys.

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Definitions:

Nonsampling Errors

Errors that occur during data collection, causing data to differ from the true values, not related to the sample being non-representative.

Coverage Error

Nonsampling error that results when the research objective and the population from which the sample is to be drawn are not aligned.

Yottabyte

A unit of digital information storage equivalent to 1,000 zettabytes or 10^24 bytes.