Question
In the question below, two statements (I) and (II) are
given. These statements may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statement. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Statements: I. A major power grid failure caused a widespread blackout across several states last evening. II. Numerous hospitals in the affected states immediately switched to backup generators to continue medical services.Solution
Statement I describes the cause: a power grid failure. Statement II describes the effect: hospitals switching to generators to maintain essential services. Thus, Statement I is the cause and statement II is its effectÂ
Which type of OLAP allows operations on pre-aggregated data cubes?
What is a data mart?
Which of the following is a key process in ETL?
In OLAP, “Slice and Dice” means:
Which of the following is a real-time data warehouse application?
Metadata in data warehousing refers to:
ETL stands for:
Which of the following commands is part of the Transaction Control Language (TCL) in SQL?
A surrogate key is:
ETL stands for: