Unit 2 Relational Databases Quiz

Unit 2 Relational Databases Quiz

12th Grade

10 Qs

quiz-placeholder

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Unit 2 Relational Databases Quiz

Unit 2 Relational Databases Quiz

Assessment

Quiz

Computers

12th Grade

Practice Problem

Hard

Created by

Michelle Semmens

Used 26+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is TRUE about normalisation?

It is the process of dividing larger tables into smaller interlinked tables

Reduces data redundancy

It is the process of dividing larger tables into smaller tables

It is the process of removing duplicate entries in a table

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which stage of normalisation are the grouped attributes converted to individual attributes?

First

Second

Third

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A table in 1NF and with ……………….. is automatically in second Normal Form.

a composite primary key

a single primary key

a multiple foreign keys

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT necessarily an attribute of a table in second Normal Form?

A.No partial dependencies

A.No non-key dependencies

A.No repeated attributes

A.No grouped attributes

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What type of entity relationships always require a link table?

A.One-to-one

A.One-to-many

A.Many-to-many

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is NOT necessarily an attribute of a table in first Normal Form?

No partial dependencies

No non-key dependencies

No repeated attributes

Both A and B

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is the main motive of normalisation?

Join many smaller tables

Reduce data redundancy while merging smaller tables

Creating a larger table with all entities

None of the above

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