单项选择题
A. No warning level or critical level alert will be generated.
B. A warning level alert will never be generated， but a critical level alert will be generated when 97 percent space of the DATA1 tablespace is used.
C. A critical level alert will never be generated， but a warning level alert will be generated when 85 percent space of the DATA1 tablespace is used.
D. A warning level alert will be generated at 85 percent space usage of the DATA1 tablespace， and a critical level alert is generated at 97 percent space usage of the DATA1 tablespace.
单项选择题 You issued the following statement to monitor the usage of the index： SQL> ALTER INDEX SCOTT.EMP_IDX MONITORING USAGE； Which view will you query to ensure that the index is being monitored？（）
单项选择题 You discover an out-of-space condition in the database. You decide to suspend a session for five minutes. You issue the following command to suspend the session： ALTER SESSION ENABLE RESUMABLE； Which command could you issue to enable the resumable space allocation feature at the session level？（）
单项选择题 YouareusingOracleEnterpriseManagertoestimatethesizeofatabletobecreated.Youhavetypeddataregardingthecolumnnames，datatypes，sizesofthecolumns，andtheprojectednumberofrowsinthetable.WhichadditionalinformationdoestheOracleEnterpriseManagerreturn？（）