Filters
Question type

Study Flashcards

The project operation


A) combines relational tables to provide the user with more information than is otherwise available.
B) creates a subset consisting of columns in a table.
C) organizes elements into segments.
D) identifies the table from which the columns will be selected.

Correct Answer

verifed

verified

DBMSs typically include report-generating tools in order to


A) retrieve and display data.
B) display data in an easier-to-read format.
C) display data in graphs.
D) perform predictive analysis.

Correct Answer

verifed

verified

The organization's rules for sharing,disseminating,acquiring,standardizing,classifying,and inventorying information is called a(n)


A) information policy.
B) data definition file.
C) data quality audit.
D) data governance policy.

Correct Answer

verifed

verified

____________________ uses predictions in a different way.It uses a series of existing values to predict what other values will be.


A) Sequences,
B) Classification
C) Clustering
D) Forecasting

Correct Answer

verifed

verified

Common Gateway Interface is a specification for processing data on a Web server.

Correct Answer

verifed

verified

In data mining,the technique of ________ uses a series of existing values to predict what other values will be.

Correct Answer

verifed

verified

DBMS for midrange computers include all of the following except


A) DB2.
B) Oracle.
C) Microsoft SQL Server.
D) Microsoft Access.

Correct Answer

verifed

verified

Data cleansing not only corrects errors but also


A) establishes logical relationships between data.
B) structures data.
C) normalizes data.
D) enforces consistency among different sets of data.

Correct Answer

verifed

verified

The specialized language programmers use to add and change data in the database is called


A) a data access language.
B) a data manipulation language.
C) structured query language.
D) a data definition language.

Correct Answer

verifed

verified

The type of logical database model that treats data as if they were stored in two-dimensional tables is the


A) non-relational DBMS.
B) mobile DBMS.
C) relational DBMS.
D) hierarchical DBMS.

Correct Answer

verifed

verified

Which of the following best illustrates the relationship between entities and attributes?


A) the entity CUSTOMER with the attribute PRODUCT
B) the entity CUSTOMER with the attribute PURCHASE
C) the entity PRODUCT with the attribute PURCHASE
D) the entity PRODUCT with the attribute CUSTOMER

Correct Answer

verifed

verified

An effective information system provides users with accurate,timely,and irrelevant information.

Correct Answer

verifed

verified

Detecting and correcting data in a database or file that are incorrect,incomplete,improperly formatted,or redundant is called


A) data auditing.
B) defragmentation.
C) data scrubbing.
D) data optimization.

Correct Answer

verifed

verified

Data cleansing is the same process as data scrubbing.

Correct Answer

verifed

verified

The discovery and analysis of useful patterns and information from the World Wide Web is called ______________________.


A) Data mining
B) Web surfing
C) Web data
D) Web mining

Correct Answer

verifed

verified

_________________________ used to describe many of these activities.Promoted by IBM,data governance deals with the policies and processes for managing the availability,usability,integrity,and security of the data employed in an enterprise,with special emphasis on promoting privacy,security,data quality,and compliance with government regulations.


A) database administration
B) data cleansing
C) data security
D) data governance

Correct Answer

verifed

verified

A schematic of the entire database that describes the relationships in a database is called a(n)


A) data dictionary.
B) intersection relationship diagram.
C) entity-relationship diagram.
D) data definition diagram.

Correct Answer

verifed

verified

In a table for customers,the information about a single customer would reside in a single


A) field.
B) row.
C) column.
D) table.

Correct Answer

verifed

verified

In a Web-based database,middleware is used to transfer information from the organization's internal database back to the Web server for delivery in the form of a Web page to the user.

Correct Answer

verifed

verified

Program-data dependence refers to the coupling of data stored in files and software programs that use this data such that changes in programs require changes to the data.

Correct Answer

verifed

verified

Showing 21 - 40 of 115

Related Exams

Show Answer