All of the following are benefits of hosted data warehouses EXCEPT * smaller upfront investment. better quality hardware. greater control of data. Ofrees up in-house systems. When representing data in a data warehouse, using several dimension tables that are each connected only to a fact table means you are using which warehouse structure? * O star schema snowflake schema relational schema O dimensional schema When querying a dimensional database, a user went from summarized data to its underlying details. The function that served this purpose is dice. slice. O roll-up. drill down. Which type of question does visual analytics seeks to answer? * O Why did it happen? What happened yesterday? O What is happening today? O When did it happen?