In the Relational Database Model, All Data Elements Within the Database

question 114

Multiple Choice

In the relational database model, all data elements within the database are viewed as being stored in the form of simple two-dimensional tables, sometimes referred to as _______________.

• A) records
• B) rows
• C) columns
• D) relations

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Definitions:

RFID Tag

A technology that uses electromagnetic fields to automatically identify and track tags attached to objects, containing electronically stored information.

RFID

Radio Frequency Identification, a technology used to transmit data wirelessly using electromagnetic fields to identify and track tags attached to objects.

Bar Codes

A machine-readable code in the form of numbers and a pattern of parallel lines used to identify a product.

Wireless Sensor

An autonomous device that monitors its own condition as well as physical and environmental conditions around it, such as temperature, sound, pressure, vibration, and movement.