ch. 7 reading questions
Africa collaborated with ________ to stop the Ebola virus outbreak in 2013 and 2014.
IBM
Databases ________ inconsistency; this means ________.
Minimize ; various copies of the data do not agree
Data marts and data warehouses typically use ________.
OLAP
Jana is a mobile startup designed to ________.
Reward users with data in exchange for collecting personal information
________ is the most popular query language used for interacting with a database.
SQL
Industry experts estimate that 80-90 percent of data in an organization is ________.
Unstructured
A ________ is a group of eight ________.
byte ; bits
Which of the following is NOT a problem associated with Big Data?
can be structured, unstructured, or semi-structured
________ refers to the maximum number of times an instance of one entity can be associated with an instance in the related entity.
cardinality
Suppose you work for XYZ Corporation. You know you can contribute 6% of your salary to a 401K and the company will match that 100% after 6 years of service because it is in the employee handbook. This is an example of ________.
explicit knowledge
All the information about you in your university's database is a(n) ________.
instance
Normalization is a method for analyzing and reducing a relational database to its most streamlined form to ensure ________ redundancy, ________ data integrity, and optimal processing performance.
minimum ; maximum
Data marts can be implemented ________ compared to data warehouses.
more quickly
A circle with a "chicken leg" to the entity represents the ________ cardinality symbol.
optimal many
A ________ generally describes an entity.
record
Database systems minimize ________.
redundancy
You recently inherited an Alvin and The Chipmunks "A Chipmunk Christmas" record. Since you don't have a record player, you need to find a way to convert the record into a CD. This is an example of data ________.
rot
________ is the cumulative store of subjective or experiential learning.
tacit knowledge
Knowledge management is a process that helps organizations manipulate important knowledge that comprises part of the organization's memory, usually in a(n) ________ format.
unstructured
Considering the following tables, ________ is a primary key.
Student table : ID