DATA ANALYTICS F/ACCT (LL) W/CONNECT
1st Edition
ISBN: 9781260931884
Author: RICHARDSON
Publisher: MCG CUSTOM
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Question
Chapter 2, Problem 3DQ
To determine
Describe three reasons why it is worth the trouble to store data in a relational database.
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Which of the following statements is not correct?
a.The database approach uses one common database to promote the concept of single user view.
b.Database systems resolve task data dependency.
c.The flat-file model encourages data redundancy.
d.A primary goal of databasesystems is to minimize data redundancy. e.Database systems provide increased accessibility to data and data integration.
The advantages to using a partitioned database approach include all of the following EXCEPT a. the possibility for the deadlock phenomenon is reduced.b. user control is increased.c. transaction processing time is decreased.d. the potential for wide-scale disaster is reduced.e. these are all advantages of partitioned databases.
Which statement is NOT true? a. Drill-down capability is an OLAP feature of data mining tools available to the user. b. The data warehouse should be separate from operational systems. c. Denormalization of data involves dividing the data into very small tables that support detailed analysis. d. Some decisions supported by a data warehouse are not fundamentally different from those that are supported by traditional databases. e. Data cleansing involves transforming data into standard business terms with standard data values.
Chapter 2 Solutions
DATA ANALYTICS F/ACCT (LL) W/CONNECT
Ch. 2 - Prob. 1MCQCh. 2 - Prob. 2MCQCh. 2 - Prob. 3MCQCh. 2 - Prob. 4MCQCh. 2 - Prob. 5MCQCh. 2 - Prob. 6MCQCh. 2 - Prob. 7MCQCh. 2 - Prob. 8MCQCh. 2 - Prob. 9MCQCh. 2 - Prob. 10MCQ
Ch. 2 - Prob. 1DQCh. 2 - Prob. 2DQCh. 2 - Prob. 3DQCh. 2 - Prob. 4DQCh. 2 - Prob. 5DQCh. 2 - Prob. 6DQCh. 2 - Prob. 7DQCh. 2 - Prob. 8DQCh. 2 - Prob. 9DQCh. 2 - Prob. 10DQCh. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Which attributes from the College Scorecard data...Ch. 2 - Prob. 5PCh. 2 - Which attributes from the College Scorecard data...Ch. 2 - Use the College Scorecard data to determine if...Ch. 2 - Prob. 8PCh. 2 - Prob. 9P
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- The database approach has several unique characteristics not found in traditional (flat-file) systems. Which of the following statements does not apply to the database model? a. Database systems have data independence; that is, the data and the programs are maintained separately except during processing. b. Database systems contain a data-definition language that helps describe each schema and subschema. c. The database administrator is the part of the software package that instructs the operating aspects of the program when data are retrieved. d. A primary goal of database systems is to minimize data redundancy. e. Database systems provide increased accessibility to data and flexibility in its usage.arrow_forwardThe installation of a database management system is likely to have the least impact ona. data redundancy.b. entity-wide sharing of common data.c. exclusive ownership of data.d. the logic needed to solve a problem in an application program.e. the internal controls over data access.arrow_forwardEven with a high-end machine and sufficient data indexes, your company's database application cannot manage the transaction load, resulting in delayed query execution. What choices do you have to let the program manage the load?arrow_forward
- Outline the traditional problems associated with the flatfile model that are resolved by the database model.arrow_forwardDiscuss why control procedures over access to the data resources become more crucial under the databases approach than flat-file environment, what is role does database management system (DBMS) play in helping to control database environmentarrow_forwardRepeating group dataa. is a form of data redundancy common to replicated databases in a distributed database environment.b. is a name given to one of the three anomalies that result from unnormalized database tables.c. can exist only in a table with a composite primary key.d. cannot exist in tables that are normalized at the 2NF level.e. is none of the above.arrow_forward
- Data in a data warehouse are in a stable state. Explain how this can hamper data mining analysis. What can an organization do to alleviate this problem?arrow_forwardWhich statement best describes the issue of distributed data processing (DDP)?a. The centralized and DDP approaches are mutually exclusive; an organization must choose one approach or the other.b. The philosophy and objective of the organization’s management will determine the extent of DDP in the firm.c. In a minimum DDP arrangement, only data input and output are distributed, leaving the tasks of data control, data conversion, database management, and data processing to be cen- trally managed.d. The greatest disadvantage of a totally distributed environment is that the distributed infor- mation processing unit locations are unable to communicate and coordinate their activities.e. Although hardware (such as computers, database storage, and input/output terminals) can be effectively distributed, the systems development and maintenance tasks must remain centralized for better control and efficiency.arrow_forward
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