Using Information Technology: A Practical Introduction to Computers and Communications, 5/e

Brian K. Williams
Stacey Sawyer

FILES, DATABASES, & E-COMMERCE: Digital Engines for the New Economy

Chapter 8 True or False Quiz


1	Siftware tools are used to perform data mining.
		A)	True
		B)	False


2	A data warehouse consists of dirty data waiting for the data cleansing step of data mining.
		A)	True
		B)	False


3	The transaction file is a relatively permanent file that holds all changes to be made to the master file: additions, deletions, revisions.
		A)	True
		B)	False


4	Magnetic tape is an example of direct storage.
		A)	True
		B)	False


5	The oldest of the four models of databases is the hierarchical database.
		A)	True
		B)	False


6	Direct storage is more expensive than sequential storage.
		A)	True
		B)	False


7	Intelligent agents do "data surfing" to explore all dimensions of a particular subset of data.
		A)	True
		B)	False


8	The chief ethical issue surrounding morphing is privacy.
		A)	True
		B)	False


9	A character can be stored in a byte of data.
		A)	True
		B)	False


10	Data fusion is another name for data cleansing.
		A)	True
		B)	False