A Select Operation Pares Down a Table in a Database

question 20

True/False

A select operation pares down a table in a database by eliminating columns according to certain criteria.

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Definitions:

System Clock

This internal clock is actually a special crystal that acts like a metronome, keeping a steady beat and controlling follows: One computer establishes a connection to the Internet service provider (ISP) and announces it has e-mail to send, the ISP server responds that it’s ready to receive, and the computer acknowledges the ready state of the server and begins to transmit the e-mail.

CPU Usage

The percentage of time the central processing unit (CPU) is working.

Level 1 Cache

The fastest form of cache memory located within the CPU, designed to provide rapid access to the most frequently used data and instructions.