Match the following terms with their meanings: I. Round function II. IsNull function III. IIF function IV. Nesting functions A. using one function within another function B. returns a number rounded to a specific number of decimal places C. checks whether a field has no value D. evaluates an expression and displays one value when the expression is true and another value if the expression is false

In data warehousing, at which point is it important that data copies are deleted after the data is transferred?

A. Moving the data from the staging area to the warehouse B. Extracting the data from its source C. Moving the data from the warehouse to the data mart D. Moving data from the source to the staging area

Which of the following configurations of a wireless network would be considered MOST secure?

A. WEP using MAC Filtering B. WEP and hiding the SSID C. WPA2 D. WPA TKIP and hiding the SSID