Computer, Chapter 11

A checkout clerk with this level of privileges to the email addresses in a discount warehouse database could view the addresses but not change them. What is this level of privileges called?

Read-only

A data dictionary contains details about data. What term is used to describe this characteristic?

Metadata

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

Data dictionary

A form that sends entered data across a network or the Internet is called which of the following terms?

e-form

A table that has rows and columns is what type of table?

two-dimensional

After a power failure, you instruct the DBMS to use the log to reenter any changes made to the database since the last save or backup. What term is used to describe is backup technique?

Forward recovery

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

Back end

Analyst often refer to the three___’s when describing characteristics of Big Data.

V

Compared with relational databases, which of the following is true of object-oriented databases?

They store data in objects

Complex DBMSs maintain a listing of activities that modify the contents of a database. What is the listing called?

Log

If you are running a check that applies a formula to the primary key, what kind of check are you running?

Check digit

If you are running a check to ensure that a required field contains data, or the correct minimum number of characters, what kind of check are you running?

Completeness

In a database which of the following is a connection within the data?

Relationship

In a database, what is the smallest unit of data user accesses?

A field

In managing a company’s database, which of the following roles requires a technical inside view of data?

Administrator

In what kind of recovery does the DBMS use the log to reenter changes made to a database since the last save or backup?

Forward

In what kind of recovery does the DBMS use the log to undo changes made to a database during a certain period?

Backward

In which of the following databases is the physical location of the server on which it is stored is transparent and often unknown, to the user?

Distributed

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

A record

Many database programs perform which of the following in order to analyze entered data help ensure that it is correct?

Validity check

Most data items are stored in only one file, which greatly reduces____

Duplicate data

SQL stand for which of the following?

Structured Query Language

What company did Larry Ellison help found?

Oracle

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

Query

What does each byte in the ASCII coding scheme represent?

Single character

What does the S in SQL stand for?

Structured

What involves showing users exactly how they will use the new hardware and software in the system?

Training

What is a database that stores data in tables that consists of rows and columns?

Relational database

What is a feature that has a graphical user interface to assist users with retrieving data?

QBE

What is more user-friendly interface some users use instead of interacting directly with a DBMS?

front end

What is another term for a data dictionary?

Repository

What is data redundancy?

Each department has its own files, so the same data might be stored in multiple files

What is DBMS?

software

What is the process of comparing data with a set of rules or vales to determine if the data meets certain criteria

Validation

What is the process of presenting data graphically as charts, maps, or other pictorial formats in order to understand the resulting information easily?

Data visualization

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

Bit

What is the term for a collection of data organized in a manner that allows access, retrieval, and use of the data?

A database

What is the term for a feature that has a graphical user interface to assist users with retrieving data?

QBE

What is the term for the process of comparing data with a set of rules or values to find out if the data is correct?

Validation

What type of database are organizations MOST LIKELY to use for payroll, accounts receivable, inventory, and invoicing?

relational

What type of database exists in many separate locations throughout a network or the Internet?

distributed

What was Megan’s Law designed to do?

Create a list of names and addresses of people convicted crimes against children

What kind of database stores data in dimensions?

Multidimensional

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

Data model

Which of the following contains data about each file in the database and each field in those files?

Data dictionary

Which of the following does a back end interact with?

DBMS

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

Data security

Which of the following identifies the quality of data in a database?

Data integrity

Which of the following is a collection of data organized in a manner that allows access, retrieval, and use of that data?

Database

Which of the following is a database that stores data in tables that consist of rows and columns?

Relational

Which of the following is a huge database that stores and manages the data required to analyze historical and current transactions?

Data warehosue

Which of the following is a nonprocedural language that enables users and software developers to access data in a database?

4GL

Which of the following is a number(s) or character(s) that is appended to or inserted into a primary key field?

Check digit

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 a query language that allows users to manage, update, and retrieve data?

SQL

Which of the following is a request for specific data from a database?

Query

Which of the following is a window on the screen that provides areas for entering or modifying data in a database

Form

Which of the following is an advantage of multidimensional database?

It can store data in two dimensions.

Which of the following is an item that contains data, as well as the actions that read or process data?

Object

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

Records cannot be deleted fro ma DBMS

Which of the following is NOT considered a pat of file maintenance?

The creation of a new database

Which of the following is true about the database approach?

Data in a database is less vulnerable than data in file processing systems

Which of the following of checks is a validity check on data, which determines whether a number is within a specified group of numbers?

Range

Which of the following kind of checks is a validity check performed on data, which ensures users ensures enter only alphabetic data into a field?

Alphabetic

Which of the following kind of checks is a validity check performed a data, which ensures users enter only numeric data into a field?

Numeric

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

Continuous

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

Default

Which of the following languages consists of simple, English-like statements that allow users to specify the data to display, print, or store?

Query

Which of the following privileges for data involve establishing who can enter new data, change existing data, delete unwanted data, and view data?

Access

Which of the following refers to the different formats to represent or store data for use by humans and computer applications?

Variety

Which of the following statements about data types is FALSE?

Text data types are used for lengthy memos

Which of the following statements best describes a form?

A window on the screen that provides areas for entering or modifying data in a database

Which of the following statements is FALSE about relational databases?

Applications best suited for relational databases are those whose data can be organized into a three-dimensional table

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

Most multidimensional databases use standard query language

Which of the following statements is NOT true about object-oriented databases (OODBs)?

A voice mail system is an example of groupware database

Which of the following statements is NOT true about the database approach?

A disadvantage to the database approach is isolated data.

Which of the following stores data in objects?

OODB

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

Backup

Which recovery technique is more expensive, but provides recovery of damaged data in a matter of seconds?

Continuous backup

Which term describes a huge database that stores and manages data required to analyze historical and current transactions?

Data warehouse

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

Table

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

Row

Which term is use to describe the practice that users’ access privileges are limited to the lowest level necessary to perform required tasks?

Principle of least privilege

Who was the inventor of the relational database model?

E. F. Codd

You are creating a database for your computer club. Most of the students live in your town, Durham. How can you make Durham appear initially in the field to make data entry easier?

Make it the default value

You create a computer-aided design database that stores data including a list of components of an item being designed, the relationship among the components, and previous versions of the design drafts. Which data model did you use?

Multidimensional

You create a database that stores data in tables that consist of rows and columns. Each row has a primary key, and each column has a unique name. Which data model did you use?

Relational

You store all of your photographs on a website that uses a database to store the photos users post. What is this type of database called?

Collaborative database

Your database was damaged due to hardware failure. What can you use to restore it?

A backup

​What is a combination of one or more related characters or bytes and is the smallest unit of data a user accesses?

Field