Chapter Exam Theory

Question 1

A person, a place, an object, an event, or a concept in the user environment about which the organization wishes to maintain data.

Answer 1

ENTITY

Question 2

A single occurence of an entity type.

Answer 2

ENTITY INSTANCE

Question 3

An entity whose existence is dependent on another entity

Answer 3

WEAK ENTITY

Question 4

It exists when different versions of the data appear in different places.

Answer 4

DATA INCONSISTENCY

Question 5

It is a collection of hardware, software, people, procedures, and data which all work together to prpvide information essential to running an organization.

Answer 5

INFORMATION SYSTEM

Question 6

It is an attribute that has meaningful component parts or sub-attributes

Answer 6

COMPOSITE ATTRIBUTE

Question 7

It is a shared, integrated, computer structure that houses a collection of data.

Answer 7

DATABASE

Question 8

It is also called recursive relationships.

Answer 8

UNARY RELATIONSHIP

Question 9

It is the most common type of relationship degree between entiry types.

Answer 9

BINARY RELATIONSHIP

Question 10

It refers to data about data.

Answer 10

METADATA