Database Processing for BIS Which of the following is not a reason that operational data are difficult to read? Non-integrated data Dirty data Non-duplicated data Missing values Non-integrated data Dirty data Non-duplicated data Missing values ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS Business Intelligence (BI) reporting systems are used to make sophisticated mathematical and statistical calculations in order to prepare reports based on the data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS We have been given access to the company's operational data, and have been asked to produce a report. We discover that some of the data we need are in an SQL server database while other needed data are in a separate Oracle database. This is an example of ________ . dirty data inconsistent data non-integrated data a "wrong format" problem dirty data inconsistent data non-integrated data a "wrong format" problem ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS The data warehouse DBMS needs to be the same DBMS used for the operational database. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS We have Market Basket data for 1,000 rental transactions at a Video Store. There are for videos for rent -- Video A, Video B, Video C and Video D. The probability that both Video C and Video D are rented at the same time is known as ________ . support lift the basic probability confidence support lift the basic probability confidence ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS Business Intelligence (BI) systems do not obtain their data by which of the following means? Process data purchased from data vendors Process transactions Read and process data from an operational database Process extracts from operational databases Process data purchased from data vendors Process transactions Read and process data from an operational database Process extracts from operational databases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS