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Databases and Normalisation

Authored by Ralph Ellis

Computers

12th Grade

Used 165+ times

Databases and Normalisation
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20 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

An entity is represented by what in a database?

Table

Row

Column

Cell

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A record is represented by what in a database?

Table

Row

Column

Cell

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

An attribute is represented by what in a database?

Table

Row

Column

Cell

4.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Which of these are required for a relational database to meet 1st normal form?

Data must be atomic

No repeating groups of data

No repeating attributes

Sets of data must have a unique identifier

Must meet 2nd normal form

5.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Which of these are required for a relational database to meet 2nd normal form?

Must meet 1st normal form

All the non-key attributes must depend on the whole primary key

All the non-key attributes must not depend on another non-key attribute

Must meet 3rd normal form

6.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Which of these are required for a relational database to meet 3rd normal form?

Must meet 2nd normal form

All the non-key attributes must depend on another non-key attribute

All the non-key attributes must not depend on another non-key attribute

Must meet 4th normal form

7.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

What is the purpose of normalisation?

Eliminate redundant data

Reduce data inconsistencies

Produce redundant data

Increase data inconsistencies

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