A) accommodating an increasing number of users who run short-duration, infrequent queries in an OLTP environment with limited memory
B) accommodating an increasing number of users who run analytical queries in a DSS environment with limited memory
C) submitting backup jobs at regular, 24-hour Intervals in an OLTP environment with limited memory
D) performing bulk-load operations in a DSS environment with limited memory
E) using Recovery Manager (RMAN) to recover a database
Answer:A
原文：http://blog.51cto.com/13854012/2139208