Quiz on Relational Database Model

Quiz on Relational Database Model

University

10 Qs

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Quiz on Relational Database Model

Quiz on Relational Database Model

Assessment

Quiz

Information Technology (IT)

University

Practice Problem

Hard

Created by

Dr. Hazirah Bee Binti Yusof Ali

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the basic component of the relational model?

Tables

Views

Schemas

Indexes

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a relation in a relational database consist of?

Attributes and entities

Files and folders

Rows and columns

Keys and values

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a composite key?

A key composed of one attribute

A key composed of multiple attributes

A key used for data retrieval

A key that is not unique

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a foreign key?

A key used for data retrieval

A key that uniquely identifies a row

A key that cannot be null

An attribute that matches primary key values in another table

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a data dictionary?

To manage user permissions

To create backup copies of data

To store user passwords

To provide detailed accounting of all tables

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which relationship is considered the norm in relational database design?

1:M relationship

1:1 relationship

M:N relationship

N:M relationship

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does referential integrity ensure in a relational database?

All attributes are unique

Foreign keys refer to valid tuples in another relation

All data is encrypted

No null values are allowed

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