YEAR 11 DATA PROCESSING SECOND TERM UNIFIED TEST

What is a database management system?

• A software application that manages and organizes data

• A set of instructions that a computer can execute

• A set of hardware components that make up a computer system

• A collection of related data

What is data security?

• The process of protecting data from unauthorized access

• The process of converting data into information

• The process of collecting and storing data

• The process of analyzing and interpreting data

What is a password?

• A secret code used to access a computer system

• A set of instructions that a computer can execute

• A set of hardware components that make up a computer system

• A collection of related data

What is data backup?

• The process of making a copy of data

• The process of converting data into information

• The process of collecting and storing data

• The process of analyzing and interpreting data

What is a backup device?

• A device that stores a copy of data

• A device that processes data

• A device that inputs data

• A device that outputs data

________ is the use of software, hardware and procedural methods to protect application from external threats

• Application set-up

• Application security

• Backup

• Encryption

One of these is defined as a set of all unique values permitted for an attribute

• Tuple

• Relation

• Constrain

• Field

One of the following is the number of fields in it

• The degree

• The cardinality

• Relation schema

• Domain

One of the following is the selective restriction of access to a place or other resource

• data security

• application security

• access control

• tuple

________ describes the column heads of the table

• Foreign key

• Data model

• Composite key

• Relation schema