Introduction to Databases Quiz - CBSE Class 10 ICT
Free practice quiz: Introduction to Databases (CBSE Class 10 ICT). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
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What is a database?
- A collection of data organized in a way that can be easily accessed
- A computer program for developing games
- A website for sharing pictures
- An online blog
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Answer: A. A collection of data organized in a way that can be easily accessed
A database is a structured set of data held in a computer, especially one that is accessible in various ways.
Which language is commonly used for querying databases?
- SQL
- HTML
- XML
- CSS
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Answer: A. SQL
SQL (Structured Query Language) is specifically designed for managing and querying data held in a relational database management system.
Which of these is a feature of a relational database?
- Data is stored in tables
- Data is stored as a continuous stream of characters
- Data is read-only
- Data cannot be indexed
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Answer: A. Data is stored in tables
Relational databases organize data into tables, which allow relationships between different data sets.
What is data normalization?
- Process of organizing data to reduce redundancy
- Process of creating visual themes
- Technique for enhancing data security
- Method of identifying incorrect data entries
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Answer: A. Process of organizing data to reduce redundancy
Normalization is the process of organizing data in a database to eliminate redundancy and ensure data integrity.
What is a view in the context of databases?
- A virtual table created by a query
- A table with duplicates
- A section of an image
- A developer's workspace layout
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Answer: A. A virtual table created by a query
A view is a virtual table derived from a SQL query, which can combine data from multiple tables into a single, virtual one.