DCIT55 - W02Q1

What is data?

• A type of hardware device

• A type of software program

• Facts concerning objects and events that could be recorded and stored on computer media

• A form of entertainment

What is information?

• Information is data that is encrypted for security purposes

• Information is data that is stored in a physical format

• Information is data that have been processed in such a way that the knowledge of the person who uses the data increased

• Information is random facts without any meaning

What is metadata?

• Metadata is data that is used for system backups

• Metadata is data that describes the properties or characteristics of end-user data and the context of that data

• Metadata is data that is used for marketing purposes

• Metadata is data that is stored in a cloud server

What is the System Development Life Cycle (SDLC)?

• A method for organizing files on a computer

• A type of computer programming language

• A complete set of steps that a team of information systems professionals follow to specify, develop, maintain, and replace information systems

• A type of computer game

What is the E-R Model?

• A type of computer virus protection software

• A method for encrypting data

• A detailed, logical representation of the data for an organization or business area

• A type of computer hardware component

What is an Entity in the E-R Model?

• A type of computer software

• A person, place, object, event, or concept in the user environment about which the organization wishes to maintain data

• A type of computer programming language

• A type of computer network

What is an Attribute in the E-R Model?

• A type of computer hardware

• A type of computer virus

• A property or characteristic of an entity type

• A type of computer game

What is a Relationship in the E-R Model?

• An association representing an interaction among the instances of one or more entity types

• A type of computer operating system

• A type of computer file format

• A type of computer security measure

What are Cardinality Constraints in the E-R Model?

• A type of computer hardware component

• A type of computer software application

• Rules that specify the number of instances of one entity that can be associated with each instance of another entity

• A type of computer programming language

What is a primary key in a database?

• A unique identifier for a record in a table

• A type of computer operating system

• A type of computer file format

• A type of computer security measure