ISMN 2140 Rainer Exam 2 Questions With
Correct Answers
data
processed in several stages and often in multiple locations, frequently
| | | | | | | | | |
subject to problems. amount increases exponentially over time
| | | | | | |
clickstream data |
data that visitors and customer produce when they visit a website and
| | | | | | | | | | | |
click on hyperlinks. provides a trail of the users activities in the website,
| | | | | | | | | | | | |
including user behavior and browsing patterns
| | | | |
data rot
|
refers primarily to problems with the media on which the data are
| | | | | | | | | | | |
stored, temperature, humidity, and exposure to light can cause physical
| | | | | | | | | |
problems with storage media and thus make it difficult to access the
| | | | | | | | | | | |
data. finding the machines needed to access the data can be difficult, its
| | | | | | | | | | | |
very hard to find 8 track players
| | | | | | |
,two factors complicate data management
| | | |
federal regulations, the sarbanes oxley act of 2002 have made it a top
| | | | | | | | | | | | |
priority for companies to better account for how they manage info.
| | | | | | | | | |
companies are drowning in data, most of which is unstructured
| | | | | | | | |
database management system | |
set of programs that provide users with tools to create and manage a
| | | | | | | | | | | | |
database. managing a database refers to the processes of adding,
| | | | | | | | | |
deleting, accessing, modifying, and analyzing data that are stored in a
| | | | | | | | | | |
database
relational database model | |
based on the concept of two dimensional tables. generally contains all
| | | | | | | | | | |
of the records and attributes. must be organized so that users can
| | | | | | | | | | | |
retrieve analyze and understand the data they need
| | | | | | |
data model |
diagram that represents entities in the database and their relationships
| | | | | | | | |
, entity
a person, place, thing or event about which an organization maintains
| | | | | | | | | | |
information. a record describes it | | | |
instance
of an entity refers to each in a relational table, which is a specific,
| | | | | | | | | | | | | |
unique representation of the entity
| | | |
attribute
each characteristic or quality of a particular entity is called an
| | | | | | | | | |
primary key |
a field that uniquely identifies a record in a table
| | | | | | | | |
secondary key |
an identifier field or attribute that has some identifying information but
| | | | | | | | | | |
typically does not identify the file with complete accuracy
| | | | | | | |
Correct Answers
data
processed in several stages and often in multiple locations, frequently
| | | | | | | | | |
subject to problems. amount increases exponentially over time
| | | | | | |
clickstream data |
data that visitors and customer produce when they visit a website and
| | | | | | | | | | | |
click on hyperlinks. provides a trail of the users activities in the website,
| | | | | | | | | | | | |
including user behavior and browsing patterns
| | | | |
data rot
|
refers primarily to problems with the media on which the data are
| | | | | | | | | | | |
stored, temperature, humidity, and exposure to light can cause physical
| | | | | | | | | |
problems with storage media and thus make it difficult to access the
| | | | | | | | | | | |
data. finding the machines needed to access the data can be difficult, its
| | | | | | | | | | | |
very hard to find 8 track players
| | | | | | |
,two factors complicate data management
| | | |
federal regulations, the sarbanes oxley act of 2002 have made it a top
| | | | | | | | | | | | |
priority for companies to better account for how they manage info.
| | | | | | | | | |
companies are drowning in data, most of which is unstructured
| | | | | | | | |
database management system | |
set of programs that provide users with tools to create and manage a
| | | | | | | | | | | | |
database. managing a database refers to the processes of adding,
| | | | | | | | | |
deleting, accessing, modifying, and analyzing data that are stored in a
| | | | | | | | | | |
database
relational database model | |
based on the concept of two dimensional tables. generally contains all
| | | | | | | | | | |
of the records and attributes. must be organized so that users can
| | | | | | | | | | | |
retrieve analyze and understand the data they need
| | | | | | |
data model |
diagram that represents entities in the database and their relationships
| | | | | | | | |
, entity
a person, place, thing or event about which an organization maintains
| | | | | | | | | | |
information. a record describes it | | | |
instance
of an entity refers to each in a relational table, which is a specific,
| | | | | | | | | | | | | |
unique representation of the entity
| | | |
attribute
each characteristic or quality of a particular entity is called an
| | | | | | | | | |
primary key |
a field that uniquely identifies a record in a table
| | | | | | | | |
secondary key |
an identifier field or attribute that has some identifying information but
| | | | | | | | | | |
typically does not identify the file with complete accuracy
| | | | | | | |
