单项选择题
A. Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE
B. Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE
C. Use compression when performing tape backups
D. Configure multiple SBT channels
多项选择题 When executing a SQL workload，you choose to generate execution plans only， without collecting execution statistics. Which two statements describe the implications of this？（）
多项选择题 You execute the following Recovery Manager （RMAN） commands in he following order： BACKUP VALIDATE DATABAE RECOVER CORRUPTION LIST； Which two tasks are performed by these commands？（）
单项选择题 You specify a nonzero value for the MEMORY_TARGET initialization parameter, but do not set thePGA_AGGREGATE_TARGET or the SGA_TARGET parameters. You restart your database instance.Which statement about the result is true?（）