Q.1

An attribute is a person, place, object, event in a user environment.

  • True
  • False
Q.2

Which of the following conditions should exist if you want to convert a relationship to an associative entity?

  • Some of the relationships for the participating entities are "many".
  • The resulting associative entity has an independent meaning.
  • The resulting associative entity has no attributes.
  • All of the above
Q.3

A fact is a word or phrase that has a specific meaning for the business.

  • True
  • False
Q.4

A binary relationship is a relationship between two or more entities.

  • True
  • False
Q.5

Some business rules cannot be represented in common data modeling notation.

  • True
  • False
Q.6

Output reports should be included as part of an ERD.

  • True
  • False
Q.7

Cardinality specifies the number of instances of one entity that can be associated with each instance of another entity.

  • True
  • False
Q.8

A good identifier is which of the following?

  • One that can change over time
  • Can be null
  • One that is unique
  • Be intelligent
Q.9

A strong entity is an entity whose existence depends on some other entity type.

  • True
  • False
Q.10

A time stamp is a time value that is associated with a data value.

  • True
  • False
Q.11

Relationships cannot have attributes.

  • True
  • False
Q.12

Business rules and policies are universal.

  • True
  • False
Q.13

Multiple and binary relationships are the same thing.

  • True
  • False
Q.14

No two attributes of the same entity type should have the same name.

  • True
  • False
Q.15

A logical representation of the data for an organization or for a business area is known as an entity-relationship model.

  • True
  • False
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