Ch. 11

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What is the smallest unit of data the computer can process?

bit

A DBMS provides a variety of techniques to restore a database to a useable form in case it is damaged or destroyed.

true

Data redundancy decreases the chance of errors

false

which of the following is a collection of related records, as shown in the accompanying figure, stored on storage media such as a hard drive or optical disc?

file

What is DBMS?

software

What is the process that large databases use to find patterns and relationships among data?

data mining

What does the S in SQL stand for?

structured

DBMSs will process flagged records unless an instruction is issued to ignore the.

False

Which term is used to describe the practice that user’s access privileges are limited to the lowest level necessary to preform required tasks?

principle of least privilege

A DBMS uses which of the following to preform validation checks?

data dictionary

As shown in the accompanying figure, which of the following is a query language that allows users to manage, update, and retrieve data?

SQL

To what does the term GIGO refer?

data integrity

Which of the following is a program with which users interact that generally has a more user-friendly interface than a DBMS?

front end

Which of the following is true about the database approach?

Selected

Whereas a relational database can store more than two dimensions, a multidimensional database is a two-dimensional table.

false

Data redundancy decreases the chance of errors.

false

Which of the following statements is not true about the multidimensional database?

Most multidimensional databases use a standard query language.

CAE aids in the development and testing of product designs, and often includes CAD.

True

Which of the following statements about data types is not true?

text data types are used for lengthy memos

Which of the following is not considered a part of file maintenance?

the creation of a new database

Which of the following is not a way that DBMS deals with deleting records from a database?

records cannot be deleted from a DBMS

A user of a database such as that pictured in the accompanying figure refers to a field as what?

column

Which of the following does not improve with the database approach?

data security

Which of the following kinds of backup are used by organizations such as hospitals, communications companies, and financial institutions?

continuous

To reduce data entry error, well-designed forms should validate data as it is entered.

True

Which term does a user of a relational database use to refer to a record?

row

Which of the following statements is not true about multidimensional databases?

Most multidimensional databases use a standard query language.

Which of the following contains a database that helps a group or department make decisions?

data mart

A user of database such as that pictured in the accompanying figure refers to a recovered what?

row

A relational database typically processes and summarizes large numbers of records efficiently.

False

Key fields link data together in a database.

True

Which of the following kinds of checks is a validity check preformed on data, like that accompanying figure, ensures user enter only alphabetic data into a field?

alphabetic

What database term is used to describe a request for specific data from the database?

query

In your school’s database, in which of the following is all of the information about a particular student stored?

a record

Application best suited for relational databases are those whose data van be organized in a two-dimensional table.

True

Which term does the developer of a relational database use to describe a file?

relation

An application that supports a front-end program sometimes is called which of the following?

back end

You cannot maintain data in a database by importing data.

false

Which of the following consists of rules and standards that define how a database organizes data?

data model

In a database such as that pictured in the accompanying figure, users can set up a relationship between tables at any time, but the tables must have which of the following in common?

a column

Verifiable information can be proven as correct or incorrect.

true

In managing a company’s database, which of the following

administrator

Key fields link data together in a database

true

Which of the following of checks is a validity check preformed on data, like that in accompanying which ensures users enter only numeric data into a field?

numeric

Which of the following is a process designed to ensure the data within the relations (tables) contains the least amount of duplication?

normalization

Which of the following kinds of values is the one that a DBMS initially displays in a field?

default

Which of the following, with regard to the entire database, should be made on a regular basis?

backup

What term does a user of a relational database use to refer to a file?

table

Query by example uses a graphical user interface that assists users with retrieving data.

True

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