Learn Database with ARJ
Authored by Dept. Comilla
Information Technology (IT)
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is a database?
A database is a programming language used for data analysis.
A database is a type of software for creating websites.
A database is a physical location for storing files.
A database is an organized collection of data stored electronically.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Define data and information.
Data is raw facts; information is processed data that has meaning.
Data is a summary of findings; information is the collection of data.
Data is always organized; information is unstructured.
Data is only numerical; information is only textual.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is a field in a database?
A field is a column in a database table that stores specific data attributes.
A field is a command used to query a database.
A field is a row in a database table.
A field is a type of database software.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is a record in a database?
A record is a command used to query a database.
A record is a collection of related data items stored together in a database.
A record is a type of database software.
A record is a single data type in a database.
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What are primary keys?
Primary keys can be duplicated across records.
Primary keys are unique identifiers for records in a database table.
Primary keys are used to store large text data.
Primary keys are optional fields in a database table.
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What are foreign keys?
Foreign keys are used to create indexes on a single table.
Foreign keys are a type of primary key that can exist independently.
Foreign keys are constraints that link records in one table to records in another table, ensuring data integrity.
Foreign keys are constraints that only apply to the primary table.
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What are the different types of databases?
Relational, NoSQL, In-memory, Time-series
Distributed, Hierarchical, Document
Cloud, XML, CSV
Flat-file, Graph, Object-oriented
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