In Automation Testing, Testers Automationly execute test cases without using any automation tools. Automation testing is the most primitive of all testing types and helps find bugs in the software system.
ETL stands for Extract-Transform-Load and it is a process of how data is loaded from the source system to the data warehouse. Data is extracted from an OLTP database, transformed to match the data warehouse schema and loaded into the data warehouse database.
HP QuickTest Professional (QTP), an automated functional testing tool that helps testers to perform automated regression testing in order to identify any gaps, errors/defects in contrary to the actual/desired results of the application under test.