IT 210 2-2 Chp. 5 Questions Notes
Organizations utilize knowledge management systems (KMS) to collect, organize, and share
knowledge inside the company. True2: End users analyze gathered data as part of online
analytical processing. True3: In a big corporation, a data warehouse is a low-cost, scaled-down
version of a data mart created for the end-user requirements in a particular department. False 4-
Which of the following is true for data marts in comparison to data warehouses? less costly 5-
Data reconciliation is the process of moving information from a company's operational databases
into its data warehouse. False 6: All of the following tasks are carried out by data dictionaries,
with the exception of giving details about each entry. 7- A data model is a diagrammatic
representation of a database that identifies the entities, properties, and relationships in the
database.
A data file is a collection of connected fields. False 9: Just one computer application or
information system may be linked to a database. False 10: Organizations may reduce data
inconsistency, data isolation, and data security risks by using databases. 11- Normalization is a
technique for getting rid of extraneous data items. True12: Sort the following data hierarchy
elements in the appropriate order. Bit-Byte-Field-Record-File-Database 13- Data integrity is
demonstrated when different versions of the same data agree. False 14—A record's main key is a
field that totally and exclusively identifies it. True Social data is not a type of big data, according
to 15. False 16: Data governance is the term that most appropriately describes how data is
managed throughout the whole company.
Federal law in the United States mandates that businesses keep track of, analyze, and publish
financial data for certain amounts of time even if they no longer need it. True 18- The
degradation of the media on which the data are stored is referred to as "data rot." Which of the
following statements about data management is true? Information is dispersed throughout
organizations. 20. As time goes on, the amount of data grows exponentially. True 21- _____
deals with knowledge that is more unbiased, logical, and technological. Manifest Knowledge.
What is a common language used to alter data called? Question-by-example syntax 23- One
sizable two-dimensional table normally makes up a relational database. False 24: The data
dictionary contains information on the ownership, security, and definitions of the data pieces as
well as the characteristics that make use of them. True 25- The format required to enter data into
a database is defined by the data dictionary. True