While Looking Through the Data, You Noticed That a Field

question 11

Multiple Choice

While looking through the data, you noticed that a field requires a leading 0 such as 01, but data has been entered as 1. What type of constraint is this called?

• A) Range
• B) Unique
• C) Foreign-key
• D) Set-membership

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Definitions:

Electronic Magnetic

Pertaining to electromagnetism, a branch of physics involving the study of the electromagnetic force that occurs between electrically charged particles.

Peripheral

Pertaining to a portion of the nervous system; anything you plug into a computer, for example, a printer, USB flash drive, monitor, or scanner; side vision while looking straight forward.

Interface

The hardware and software that enable individual computers and components to interact.

Modem

A device that modulates and demodulates signals for encoding and decoding digital information over telephone lines.