The purpose of normalisation is:

a.

Normalisation shows the relationships between entities.

b.

Normalisation identifies the resources, events and agents of a business process.

c.

Normalisation is not important.

d.

Normalisation ensures the tables in a database are well-designed and free from anomalies.

Normalised tables are in the _____ Normal Form.

a.

first

b.

fourth

c.

second

d.

third

Which of the following is not a basic rule for creating tables in a relational database?

a.

Each relation has a set of identifiers called keys.

b.

The order of the columns and rows is significant.

c.

Every table has a unique name.

d.

Every row is unique.

Which one of the following is not a characteristic to determine big data?

a.

VARIETY

b.

VALUE

c.

VOLUME

d.

VELOCITY