AIS EXAM 4 ACTUAL EXAMINATION TEST
2026 COMPLETE QUESTIONS AND
SOLUTIONS GRADED A+
◉ Corporate memory
Answer: The historical data stored in a data warehouse that serves
as an archive of past company performance
◉ Operational database
Answer: The database used for daily business transactions that is
kept separate from the data warehouse to avoid slowing system
performance
◉ Data lake
Answer: A storage system that integrates data from many sources
and can hold both structured and unstructured data in larger
amounts than a data warehouse
◉ OLAP (online analytical processing)
Answer: A data warehouse tool used to quickly analyze large
amounts of stored historical data for reporting and decision making
2026 COMPLETE QUESTIONS AND
SOLUTIONS GRADED A+
◉ Corporate memory
Answer: The historical data stored in a data warehouse that serves
as an archive of past company performance
◉ Operational database
Answer: The database used for daily business transactions that is
kept separate from the data warehouse to avoid slowing system
performance
◉ Data lake
Answer: A storage system that integrates data from many sources
and can hold both structured and unstructured data in larger
amounts than a data warehouse
◉ OLAP (online analytical processing)
Answer: A data warehouse tool used to quickly analyze large
amounts of stored historical data for reporting and decision making
