In a Relational Database

question 74

Multiple Choice

In a relational database

• A) the user's view of the physical database is the same as the physical database
• B) users perceive that they are manipulating a single table
• C) a virtual table exists in the form of rows and columns of a table stored on the disk
• D) a programming language (COBOL)is used to create a user's view of the database

---

Definitions:

AC Voltage

AC voltage stands for alternating current voltage, where the flow of electric charge periodically reverses direction, commonly used in homes and industries for powering electrical appliances.

Reluctor

A term used to describe a number of devices that use magnetism and motion to produce voltage.

Series Circuit

An electrical circuit in which components are arranged in a single path, so current flows through one component to get to the next.

Voltage Drop

The decrease in electrical potential along the path of a current flowing in an electrical circuit, affecting the circuit's performance.