多项选择题
A. Only one window can be open at any given time
B. Consumer groups are associated with windows
C. Windows work with job classes to control resource allocation
D. The database service name must be provided during windows creation
E. Windows can automatically start job or change resource allocation among jobs for various time periods.
多项选择题 IdentifythepersistentconfigurationsettingforthetargetdatabasethatcanbesetforthebackupbyusingRMAN.（）
多项选择题 While Monitoring the space usage in your database that is in ARCHIVELOG mode you observed that the flash recovery area does not have enough free space to accommodate any more files and you do not have necessary permissions to add more space to it. Identify the two events that can occur in the event of a log switch？（）
单项选择题 Your database instance is running. You are not able to access Oracle Enterprise Manager Database Control because the listener is not started. Which tool or utility would you use to start the listener？（）