Question 1
What is a Database in computing?

1 / 1 point

A collection of organized data stored and accessed electronically.

A collection of tables of data stored and accessed electronically.

Correct
Correct! A database is a collection of data that can be accessed and managed electronically.

Question 2
Which database model uses only tables to store data?

1 / 1 point

Relational databases

NoSQL databases

Flat Files databases

Correct
Correct! In relational databases all data must be stored in tables.

Question 3
Which of the following is a key advantage of organizing data in tables?

1 / 1 point

To provide a clear view of data

To store a large amount of data

To protect data

Correct
Correct! Tables consists of rows and columns, which makes it easy to organize and understand data.

Question 4
The foreign key can be used to identify a specific record of data in a relational database.

1 / 1 point

False

True

Correct
Correct! A primary key is used to uniquely identify each record in a table.

Question 5
Big data contains a wide variety of data, arriving in increasing volumes and at high velocity.

1 / 1 point

True

False

Correct
Correct! Big Data refers to data sets that are exceptionally large in volume, contain a wide variety of data and are retrieved with a high velocity.