Chapter 5
Africa collaborated with ________ to stop the Ebola virus outbreak in 2013 and 2014. Amazon Google IBM Microsoft
IBM
All the information about you in your university's database is a(n) ________. database attribute entity instance
instance
Databases ________ inconsistency; this means ________. maximize; the same data are stored in multiple locations maximize; various copies of the data do not agree minimize; various copies of the data do not agree minimize; the same data are stored in multiple locations
minimize; various copies of the data do not agree
Data marts can be implemented ________ compared to data warehouses. It depends on the situation. at the same pace less quickly more quickly
more quickly
A circle with a "chicken leg" to the entity represents the ________ cardinality symbol. mandatory single optional many optional single mandatory many
optional many
A ________ generally describes an entity. field file record byte
record
Database systems minimize ________. redundancy security integrity independence
redundancy
Jana is a mobile startup designed to ________. charge users less money to use mobile data than they have to pay their telecommunication company reward users with data in exchange for collecting their personal information when sampling apps offer free smartphones to people who make less than 20 cents an hour in China give app developers free access to other apps
reward users with data in exchange for collecting their personal information when sampling apps
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 ________. scattering clickstreaming rot degradation
rot
Industry experts estimate that 80-90 percent of data in an organization is ________. semi-structured structured part-structured unstructured
unstructured
Knowledge management is a process that helps organizations manipulate important knowledge that comprises part of the organization's memory, usually in a(n) ________ format. structured semi-structured part-structured unstructured
unstructured
Which of the following is NOT a problem associated with Big Data? Big Data changes. Big Data can come from untrusted sources. Big Data can be structured, unstructured, or semi-structured. Big Data lacks quality.
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. Business rules Modality Data dictionary Cardinality
Cardinality
Data marts and data warehouses typically use ________. ERP RFID OLTP OLAP
OLAP
________ is the most popular query language used for interacting with a database. TPS ETL SQL RFID
SQL
A ________ is a group of eight ________. byte; bits bit; bytes file; fields field; files
byte; bits
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 information explicit knowledge tacit information tacit knowledge
explicit knowledge
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. maximum; minimum minimum; minimum maximum; maximum minimum; maximum
minimum; maximum
________ is the cumulative store of subjective or experiential learning. Explicit knowledge Tacit information Explicit information Tacit knowledge
Tacit knowledge
