单项选择题
You were recently hired by Certkiller .com as a database administrator. You are asked to find out whether the currently functional listener process， named L1， has been password protected or not. You are not familiar with the file system of the new organization. How would you accomplish the task？（）
A. by using the STATUS command of the Listener control utility
B. by using the STATUS L1 command of the Listener control utility
C. by using the SHOW RULES command of the Listener control utility
D. by using the SET PASSWORD command of the Listener control utility
E. by searching for the PASSWORD_LISTENER entry in the listener.ora file
相关考题
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多项选择题
WhenperformingabackupusingRecoveryManager（RMAN），whichfourtypesoffilescanbebackedupwiththeRMANBACKUPcommand？（）
A. data file
B. password file
C. archivelog file
D. temporary file
E. online redo log file
F. the current control file
G. the tnsnames.ora file
H. current server parameter file -
单项选择题
YouworkasadatabaseadministratoratCertkiller.com.Youareworkinginanonlinetransactionprocessing（OLTP）environment.Yourealizethatthesalaryforanemployee，John，hasbeenaccidentallymodifiedintheEMPLOYEEStable.Twodaysago，thedatawasinthecorrectstate.Flashbacklogsgeneratedduringlasttwodaysareavailableintheflashrecoveryarea.Whichoptionwouldyouchoosetobringthedatatothecorrectstatewhileensuringthatnootherdatainthesametableisaffected？（）
A. perform point-in-time recovery
B. perform a Flashback Table operation to restore the table to the state it was in two days ago
C. perform a Flashback Database operation to restore the database to the state it was in two days ago
D. perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements， and then use them for recovery -
单项选择题
You defined the Recovery Manager （RMAN） retention policy to recovery window of 7 days by executing the following command： RMAN> CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS； When a backup is performed， what would be the status of this backup after seven days？（）
A. The backup would be marked as invalid.
B. The backup would be marked as obsolete.
C. The backup would be removed from the media.
D. The backup would be removed from the RMAN repository.
