QUESTION S A method of capturing only the changes that have occurred in the source data since the last capture is called extract. o partial e incremental o static O update-driven QUESTION6 All of the following are tasks of data cleansing EXCEPT: O decoding data to make them understandable for data warehousing applications. o adding time stamps to distinguish values for the same attribute over time o generating primary keys for each row of a table. O creating foreign keys QUESTION7 duplicates data across databases O A replication server Redundant replication o Data propagation OData duplication