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.

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
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   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
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   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.

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