Lesson 1: Hierarchy of Data

Question 1

A — is a binary digit (i.e., 0 or 1) that represents a circuit that is either
on or off.

Answer 1

bit

Question 2

— can be organized into units called bytes.

Answer 2

Bits

Question 3

A —- is typically eight
bits

Answer 3

byte

Question 4

A basic building block of
most information, consisting of upper-
case letters, lowercase letters, numeric
digits, or special symbols.

Answer 4

Character

Question 5

Each byte represents a ———, which is the basic building block of
most information.

Answer 5

character

Question 6

Typically a name, a number,
or a combination of characters that
describes an aspect of a business
object or activity.

Answer 6

field

Question 7

A collection of data fields all related to one object, activity, or
individual is called a ——

Answer 7

record

Question 8

A collection of related records is a

Answer 8

file

Question 9

A collection of related records.

Answer 9

file

Question 10

At the highest level of the data hierarchy is a ——–, a collection of integrated and related files.

Answer 10

database

Question 11

Together, bits, characters, fields,
records, files, and databases form
the

Answer 11

Hierarchy of data