多项选择题
A. The ASM-preferred mirror read feature is enabled.
B. The ASM supports variable sizes for extents of 1, 8, and 64 allocation units.
C. The ASM disk is dropped immediately from a disk group when it becomes unavailable.
D. The RDBMS always reads the primary copy of a mirrored extent of the ASM disk group.
单项选择题 You are working on a 24X7 database. You want to design a backup strategy for your database that uses user managed backups. You want to be able to perform all backups while the database remains online. Which statement about performing user-managed backups in a 24x7 environment is true?（）
多项选择题 View the Exhibit to examine the replay settings for replay parameters.What is the implication for setting the values for replay parameters?（）
多项选择题 Identify the activities performed as part of the Automatic SQL Tuning process in the maintenance window?（）