Databases Quiz - CBSE Class 8 ICT

Free practice quiz: Databases (CBSE Class 8 ICT). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 8 ICT practice quiz has 20 multiple-choice questions on Databases, and 20 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What does DBMS stand for?

   1. Database Management System
   2. Data Backup Management System
   3. Database Manager Scheme
   4. Data Building Management Service
   Show answer

   Answer: A. Database Management System

   DBMS stands for Database Management System, which is software for creating and managing databases.

2. In databases, what does SQL stand for?

   1. Structured Query Language
   2. Sequential Question Language
   3. Simple Query Log
   4. System Query Language
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   Answer: A. Structured Query Language

   SQL stands for Structured Query Language, which is used to interact with and manage relational databases.

3. What is normalization in a database?

   1. Organizing data to reduce redundancy
   2. Breaking data into fragments
   3. Encrypting database records
   4. Analyzing data trends
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   Answer: A. Organizing data to reduce redundancy

   Normalization is the process of structuring a database to reduce redundancy and improve data integrity.

4. What is a 'tuple' in a relational database?

   1. A single row in a table
   2. A single column in a table
   3. A type of query
   4. A database server
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   Answer: A. A single row in a table

   In a relational database, a tuple generally refers to a single row in a table, representing a single data item.

5. Which of the following is true about a composite key?

   1. It consists of two or more attributes
   2. It encrypts the primary data
   3. It is always a foreign key
   4. It is a single unique identifier
   Show answer

   Answer: A. It consists of two or more attributes

   A composite key is a primary key composed of two or more columns that together uniquely identify a record.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which of the following is an example of a DBMS?
2. What is a primary key?
3. Which of these is a characteristic of a relational database?
4. Which SQL command is used to retrieve data from a database?
5. What kind of relationships are managed in relational databases?
6. Which of the following is NOT a characteristic of a database?
7. What is a foreign key in a database?
8. What command is used in SQL to add new data to a table?
9. What is metadata in the context of databases?
10. What is the purpose of an index in a database?
11. Which of the following statements is true about SQL JOIN?
12. What happens when you execute the DELETE FROM table command in SQL?
13. What principle of CRUD operations does the UPDATE command represent?
14. What does ACID stand for in databases?
15. In relational databases, what is referential integrity?

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