Exam 1: Introduction to Database Management

____ is the prevention of unauthorized access to the database.

Which of the following statements is correct?

The problem of inconsistency in data is a direct result of ____________________.

In an E-R diagram,the ____________________ at the end of a line indicates the "many" part of the one-to-many relationship between two entities.

A relationship is an association between attributes.

In an E-R diagram,____________________ represent relationships between connected entities.

To support all the complex functions that it provides to users,a DBMS must store data in multiple files.

A program,or collection of programs,through which users interact with a database is known as a(n) _________________________.

A(n) ____ is a person,place,object,event,or idea for which you want to store and process data.

A(n) ____ frees programmers who write database access programs from having to engage in mundane data manipulation activities,such as adding new data and deleting existing data.

A good _________________________ has many features that allow users to gain access to data in a database without having to do any programming.

A person who is in charge of a database within an organization is often called the database ____.

A visual way to represent a database is with a(n) ____.

A good DBMS provides integrity constraints,which are features that let you change the structure of the database without changing the programs that access the database.

One disadvantage of a database system is ____.

A database cannot be password protected to prevent unauthorized users from accessing the data.

An attribute is a characteristic or property of an entity.

The attributes of an entity become the rows in the table

In an entity-relationship (E-R) diagram,rectangles represent entities and lines represent relationships between connected entities.

____ is a property that lets you change the structure of the database without requiring you to change the programs that access the database.