多项选择题
A. Health Check was performed manually.
B. Health Check was performed to check the disk image block corruptions.
C. Health Check was performed to check interblock and intersegment corruption.
D. Health Check was performed to verify the integrity of database files and report failures.
E. Health Check was performed by the Health Monitor automatically in response to a critical error.
多项选择题 WhichthreecomponentsdoestheScheduleruseformanagingtaskswithintheOracleenvironment？（）
单项选择题 Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）
多项选择题 While deploying a new application module，the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe the consequences？（）