IS213-Midterm Examination on Database Management

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

• Database

• ERD

• Model

• Data