E R Diagram

E R Diagram

University

25 Qs

quiz-placeholder

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E R Diagram

E R Diagram

Assessment

Quiz

Computers

University

Practice Problem

Medium

Created by

MR. BSSS

Used 55+ times

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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Properties that describe the characteristics of entities are called:

entities

attributes

identifiers

relationships

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Entities of a given type are grouped into a/an:

Database

Entity class

Attribute

ERD

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a basic element of all versions of the ER model?

entities

attributes

relationships

primary key

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Entities can be associated with one another in which of the following?

entities

attributes

identifiers

relationships

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The attribute name could be structured as an attribute consisting of first name, middle name and last name. This type of attribute is called :

Simple attribute

Composite attribute

Multi-valued attribute

Derived attribute

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The attribute AGE is calculated from DATE_OF_BIRTH. The attribute AGE is:

Single valued

Multi valued

Composite

Derived

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following can be a multi-valued attribute?

Phone_number

Name

Date_of_birth

All of these

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