recap databases and OOP v1

Databases and OOP

Multiple Choice

Databases are split into separate...

• Tables

• Worksheets

• Modules

Multiple Choice

In an ERD, each table translates into...

• An Entity

• A Relationship

• A Database

• An Attribute

Multiple Choice

If a unique value in one table can be linked to multiple values in another table, this is known as a _______ relationship.

• 'one-to-many'

• 'one-to-one'

• divergent

• convergent

Multiple Choice

What is a database?

• An organised collection of data

• A store of data consisting of one table

• A store of related data stored in more than one table

• Data stored on a computer

Multiple Choice

Normalisation eliminates data redundancy

• True

• False

Multiple Choice

Which of the following is the primary key in this database table?

• BeachID

• Beach Type

• Lifeguard

Multiple Choice

A simple database consisting of only one entity

• Relational Database

• ERD

• Flat-file database

• Table

Multiple Choice

What is a foreign key?

• The primary key in one table used to link to another table

• Two fields combined together to make one key

• A unique identifier

Multiple Choice

What is the template of an object called?

• Stencil

• Class

• Object template

• Blueprint

Multiple Choice

Constructors are used to:

• Build a GUI

• Free memory

• Initialize a newly created object

• Create a subclass

Multiple Choice

What is the difference between a class and an object?

• A class is a blueprint to make an object

• An object is a blueprint to make a class

• A blueprint is an object to make a class

• Blueprint class is an object make a

Multiple Choice

An object is an instance of a ...

• parameter

• method

• class

• application

Multiple Choice

The name given to a procedure or function residing within a class.

• method

• attribute

• modifier

• parameter

Multiple Choice

Constructors are called just once when ______.

• an object is being created

• a class is being terminated

• class is being closed

• an object is being destroyed

Multiple Choice

What is an object?

• Everything

• An instance of a class

• A detail of a class

• A class of details

Multiple Choice

What is the meaning of the word instantiation?

• To create an object

• To delete an object

• To define what an object looks like

• To inherit the characteristics of another class