单项选择题
A.configure the database to run in ARCHIVELOG mode
B.configure the Flash Recovery Area to enable automatic database backup
C.schedule the database backup using DBMS_JOB package after creating the database
D.schedule the database backup using Recovery Manager （RMAN） commands after creating the database
E.schedule the database backup using Database Configuration Assistant （DBCA） while creating the database
多项选择题 UserScotthasupdatedthesalaryofoneoftheemployeesintheEMPLOYEEStableandhasnotcommittedthetransaction.Whatarethetwotypesoflocksthatthisscenariowouldleadto？（）
多项选择题 When you try to start the Database Control by using the emctl start dbconsole command the following error is displayed： TZ set to America/New_york OC4J Configuration issue. /u01/app/oracle/product/10.1.0/db_1/oc4j/j2ee/OC4J_DBConsole_orcl.us.oracle.com not found. Which two environment variables do you need to set appropriately to avoid such errors，and start the Database Control successfully？（）
单项选择题 You need to rename a data file of a tablespace. How would you perform this？（）