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sherryzzzzz sherryzzzzz
wrote...
Posts: 535
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6 years ago
An inventory control system is an example of an MIS.
 
  Indicate whether the statement is true or false

 Q. 2

Which of the following statements is true of natural laws and rights?
 
  A) Natural laws and rights does not consider the actual consequences of an action when judging its morality.
  B) Natural laws and rights is an ethical framework that takes into account the effects of an action, weighing its good effects against its harmful ones.
  C) Natural laws and rights involves judging what action would create the greatest good for the greatest number of people.
  D) Natural laws and rights is a framework based on the central tenet that states, The needs of the many outweigh the needs of the few.

 Q. 3

What are shadow systems? How do they hinder managers who are looking for company-wide summaries?
 
  What will be an ideal response?

 Q. 4

BTC, a consulting company with offices across the U.S., began an employee discussion forum on its website. A few employees began criticizing the company on the forum and undermining its morale.
 
  BTC does not want to limit employee interaction, but at the same time, it would like to limit what employees can write. Which of the following features of a discussion forum will help them achieve this?A) anonymity
  B) telepresence
  C) version control
  D) moderators

 Q. 5

Which of the following elements of website usability refers to the mistakes made by users when they attempt to accomplish a task and how easy it is to recover from those mistakes?
 
  A) trial rate
  B) error rate
  C) attrition rate
  D) churn rate

 Q. 6

Describe performance tuning and the trade-offs associated with it.
 
  What will be an ideal response?
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Replies
wrote...
6 years ago
Ans. to #1

FALSE

Ans. to #2

A

Ans. to #3

Shadow systems are smaller databases developed by individuals or departments that focus on their creator's specific information requirements. They are not managed by central IT staff, who may not even know they exist. Shadow systems are not integrated into the enterprise database, so when managers who are looking for company-wide summaries try to integrate it into the system, they are confronted with many versions of the truth, since the information comes from multiple sources with inconsistent data definitions and data quality.

Ans. to #4

D

Ans. to #5

B

Ans. to #6

The database needs tuning for optimal performance, and the tuning process takes into account the way the end users access the data. For example, fields that end users use to search for records should be indexed for maximum performance. Although the DBA might be tempted to index everything, that would slow the system down when records are added, so a balance is needed. DBAs make trade-offs to add speed to certain activities while slowing down others, yet always stay attentive to the needs of the employees, customers, and other stakeholders. Optimizing performance for speedy retrieval of information, for example, may require slowing down other tasks, such as data entry or editing.
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