Which of the following database types would be best suited for storing multimedia quizlet?

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Terms in this set (67)

A one-to-many relationship between two entities is symbolized in a diagram by a line that ends:

with a crow's foot preceded by a short mark.

Which of the following would you use to find out which websites with content related to database design were the most often linked to by other websites?

Web structure mining

Which of the following is the most prominent data manipulation language today?

SQL

A field identified in a record as holding the unique identifier for that record is called the:

key field

Links pointing to an online document are a sign of:

popularity

The select operation:

creates a subset consisting of all records in the file that meet stated criteria.

A data mart usually can be constructed more rapidly and at a lower cost than a data warehouse because:

it typically focuses on a single subject area or line of business.

The most basic business database is compromised of:

five tables:for customers, employees, suppliers, parts, and sales.

In clustering, a data mining tool will find:

new groupings within data

A table that links two tables that have a many-to-many relationship is often called an intersection relation.

intersection relation

Tools for consolidating, analyzing, and providing access to vast amounts of data to help users make better business decisions are known as:

Business intelligence

Which of the following is an automated or manual file that stores information about data elements and data characteristics such as usage, physical representation, ownership, authorization, and security?

Data dictionary

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

row

Every record in a file should contain at least one key field.

True

A data _______ stores current and historical data of potential interest to decision makers throughout the company.

warehouse

What are the relationships that the relational database is named for?

Relationships between entities.

What is the first step you should take in managing data for a firm?

Identify the data needed to run the business.

What is the purpose of a DBMS's data definition function?

Structuring the database

End users use a data manipulation language to manipulate data in the database.

True

The logical view of a database :

presents data as they would be perceived by end users.

Which of the following allows users to add, change, delete, or retrieve data in a database?

Data manipulation language

DBMS simplify how end users work with databases by separating the logical and physical views of the data.

True

All of the following are tools or technologies for extracting information from unstructured data sets except:

SQL queries

A physical view shows data as it is organized on the storage media.

True

Relational database systems use _______ to ensure that relationships between coupled tables remain consistent.

referential integrity rules

Data mining is a tool for allowing users to:

find hidden relationships in data

A grouping of characters into a word, a group of words, or a complete number is called a record.

False

Access is a:

DBMS for desktop PC systems

Which of the following database types would be best suited for storing multimedia?

Non-relational DBMS

A schematic of the entire database that describes the relationships in a database is called an:

entity-relationship diagram

A _______ is a structured survey of the accuracy and the level of completeness of the data in an information system.

data quality audit

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

Relational DBMS

The project operation:

creates a subset consisting of columns in a table

MySQL is a :

popular open-source DBMS

Common data quality problems include all of the following except:

Internet connectivity problems

The smallest unit of data a computer can handle is called a:

bit

Which of the following best describes the importance of creating an accurate data model for your business's database?

It is critical, as without one, your data may be inaccurate, incomplete, or difficult to retrieve

A foreign key is a field that links to a separate table.

True

DBMS typically include report-generating tools in order to:

display data in an easier-to-read-format.

Pre-configured hardware-software systems that use both relational and non-relational technology optimized for analyzing large datasets are referred to as:

analytic platforms.

In terms of the data relationships found by data mining, associations refers to:

occurrences linked to a single event

A DBMS is special software for creating, storing, organizing, and accessing data from a database.

True

A characteristic or quality describing an entity is called an:

attribute

You are working in the IT department of a small paper supply company and planning a new database that monitors employee benefits and productivity. What would be the relationship you need to establish between Employee_ID in the Employee table and Parking_spot_number in the Perks table?

One-to-one

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

Data warehouse systems provide easy-to use tools for managers to easily update data.

Businesses use _____ tools to search and analyze unstructured data sets, such as emails and memos.

text mining

Links coming out of an online document are a sign of:

richness or variety of topics covered.

Which of the following is an example of a company whose business model is based on access to large databases through the web?

Facebook

Data mining is more _____ than OLAP

discovery driven

A one-to-one relationship between two entities is symbolized in a diagram by a line that ends:

in two short marks

Which of the following enables users to view the same data in different ways using multiple dimensions?

OLAP

In terms of the data relationships found by data mining, sequences refers to:

events linked over time.

Within a corporate information services department, the task of establishing the physical database and its logical relations are responsibilities of the _______ function

database administration

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

data scrubbing

The process of streamlining data to minimize redundancy and awkward many-to-many relationships is called:

normalization

MongoDB and SimpleDB are both examples of:

NoSQL databases

Which of the following would you use to find patterns in user interaction data recorded by web servers?

Web usage mining

In a relational database, a record is also called a:

tuple

OLAP is a tool that enables users to:

obtain online answers to ad hoc questions in a rapid amount of time.

In a relational database, the three basic operations used to develop useful sets of data are:

select, project, and join.

The confusion created by ________ makes it difficult for companies to create customer relationship management, supply chain management, or enterprise systems that integrate data from different sources.

data redundancy

A field identified in a table as holding the unique identifier of the table's records is called the:

primary key

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

The entity CUSTOMER with the attribute ADDRESS

Hadoop is a(n):

open-source software framework designed for distributing data-processing over inexpensive computers.

A ______ is a dedicated computer in a client/server environment that hosts a DBMS.

database server

A DBMS makes the:

physical database available for different logical views.

Both oracle and microsoft access use SQL to retrieve information from a database.

True

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