What two are the prerequisites for enabling Flashback Database？（） The database must be in ARCHIVELOG mode。 The database must be in MOUNT EXCLUSIVE mode。 The database must be opened in RESTRICTED mode。 The database instance must be started in the NOMOUNT state。 The database instance must have the keep buffer pool defined。
通过论证认为：学科教学知识（）最能区分高成效教师与低成效教师间的不同。
Observe the following warning in an RMAN session of your database instance: WARNING: new failures were found since last LIST FAILURE command Which statement describes the scenario that must have produced this warning?（） The CHANGE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository(ADR)。 The VALIDATE DATABASE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR)。 The ADVISE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE。 The RECOVER command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE command was executed。
Which of the following WebSphere Commerce user roles can create new customer care queues？（） Account Representative。 Customer Service Representative。 Logistics Manager。 Customer Service Supervisor。
After editing the /home/padmin/config/ntp.conf file, what must an administrator logged in as padmin run to turn on xntpd on a VIO server?（） xntpd start 。 startnetsvc xntpd 。 startsvc s xntpd 。 startsrc s xntpd。
世界地球日是每年的（）
