IS213 - Database Management System

Which of the following is not a type of database model?

• Graph
• Hierarchical
• Object-oriented
• Relational

What is the primary function of a database management system (DBMS)?

• To organize and manipulate data in a database
• To manage hardware components of a computer system
• To encrypt data stored in a database
• To design user interfaces for applications

What is a primary key in database management?

• A unique identifier for a record in a database table
• A field in a table that refers to the primary key of another table
• A data structure used to improve the performance of queries
• A query that combines data from two or more tables based on a common field

What is a foreign key in database management?

• A field in a table that refers to the primary key of another table
• A unique identifier for a record in a database table
• A data structure used to improve the performance of queries
• A query that combines data from two or more tables based on a common field

It is a representation of facts or concepts, in a formalized manner suitable for communication, interpretation, or processing by human or by automatic means.

• Data
• Information
• ERD
• Model

A data that appears in the form of texts, and images among others.

• Data in a Document
• Data Inscription
• Data in a Database
• Data in a File

What is data in a document?

• Information contained in a file
• The layout of a document
• The font used in a document
• The images included in a document

Which of the following is not true about data?

• communicate in informal manner
• processed by humans or by automatic means
• representation of facts or concepts
• interpretation

It is knowledge derived as a result of processing the data.

• Information
• Data
• ERD
• Model

It is e is an extensive collection of interrelated data arranged for easy storage, and retrieval of information.

• Database
• ERD
• Model
• Data