Database Knowledge Check

Imagine Florence, Noah, and Sophie are learning about database systems. Which of these would not be considered an advantage of using a database system?

• Florence can analyse data in a number of ways

• Noah requires training to use the system

• Sophie can store large amounts of data

Answer explanation

Using a database system offers advantages such as data analysis and storing large amounts of data. However, Noah requiring training to use the system is not considered an advantage.

Eesha, Arjun, and Freya are playing a game of 'Database Detective'. They come across a mysterious table with a special key. What is a characteristic of this key, if it's a primary key?

• it is unique and can unlock any mystery in the table

• it opens the physical lock for the table

Answer explanation

A primary key is unique and can unlock any mystery in the table.

select different kinds of queries we can make using a database

• complex queries

• composite queries

• simple queries

Answer explanation

Complex queries and simple queries are different kinds of queries that can be made using a database. They allow for advanced data retrieval and basic data retrieval, respectively.

Emily, Isla, and Noah are having a debate. Emily thinks an entity is a query, Isla thinks it's a report, Noah thinks it's a table, and you think it's a form. Who is correct?

• Emily (query)

• Isla (report)

• Noah (table)

• You (form)

Answer explanation

The correct choice is Noah (table) because an entity typically refers to a table in a database.

Grace, Anaya, and Samuel are having a debate about the different views in which we can view a database. Can you help them settle the debate?

• datasheet view

• design view

• form view

• report view

Answer explanation

The correct views to see a database are datasheet view and design view. These views allow you to interact with the data and design the structure of the database.

What is the full form of DBMS?

• Data of Binary Management System

• Database Management System

• Database Management Service

• Data Backup Management System

Answer explanation

DBMS stands for Database Management System. It is a software that allows users to create, manipulate, and manage databases. The correct answer is Database Management System.

Elsie, Evie, and Isla are on a quest to understand the digital world. They stumbled upon a term 'database'. Can you help them understand what a database is?

• An organized collection of information that is locked away in a digital vault and cannot be accessed, updated, or managed

• A random pile of data or information scattered all over the digital space without any organization

• An organized collection of data or information that can be accessed, updated, and managed like a digital library

• An organized collection of data that is frozen in time and cannot be updated

Answer explanation

A database is an organized collection of data or information that can be accessed, updated, and managed like a digital library.

Poppy, Anaya, and Arjun are having a debate. Poppy thinks DBMS is a collection of queries, Anaya believes it's a high-level language, and Arjun insists it's a programming language. But, who is correct? Or is DBMS something that stores, modifies and retrieves data?

• DBMS is a collection of queries

• DBMS is a high-level language

• DBMS is a programming language

• DBMS stores, modifies and retrieves data

Answer explanation

DBMS is a system that stores, modifies, and retrieves data. It is not a collection of queries, a high-level language, or a programming language.

Imagine Isabella, Arjun, and Muhammad are working on a project. They need to store different types of data in their database. Can you guess what type of data they can store?

• Image oriented data

• Text, files containing data

• Data in the form of audio or video

• All of the above

Answer explanation

Isabella, Arjun, and Muhammad can store image oriented data, text, files containing data, and data in the form of audio or video in their database. Therefore, the correct choice is 'All of the above'.

Imagine you're in a thrilling coding competition with Evie, Elsie, and Daniel. You're given a task to create a database. Which of the following software would you use to accomplish this task?

• Google chrome

• Microsoft access

• Microsoft PowerPoint

Answer explanation

To create a database, you would use Microsoft Access. It is specifically designed for this task and offers a range of features for managing and organizing data efficiently.