A.TNSLSNRB.LISTENERC.LOCAL_LISTENERD.DEFAULT_LSRNYou ha……

单项选择题In this scenario， assume that you archive logs 101 to 104 to two archiving destinations，  log1 and  log2. The control file contains archived log records as follows：   Sequence Filename  101  log1 log_1_101.arc  101  log2 log_1_101.arc  102  log1 log_1_102.arc  102  log2 log_1_102.arc  103  log1 log_1_103.arc  103  log2 log_1_103.arc  104  log1 log_1_104.arc  104  log2 log_1_104.arc   You accidentally delete logs 102 and 104 from log 1. You run this command：   BACKUP ARCHIVELOG FROM SEQUENCE 101 UNTIL SEQUENCE 105；   What happens？（）

A.A
B.B
C.C
D.D

单项选择题You discover that a disk failure occurred on DISK3 where the data file belonging to the USER_DATA tablespace is stored. The database is currently open and you need to recover the data file. You will restore the data file from the backup on DISK5 to DISK2.  What is the correct sequence of commands to restore and recover the data file？（）

A.A
B.B
C.C
D.D

单项选择题WhenperformingrecoverofadatabaseinNOARCHIVELOGmodewithRMAN，thetargetdatabasemustbeinthe（）statetorestorethecontrolfile.

A.OPEN
B.IDLE
C.MOUNT
D.NOMOUNT

单项选择题Click the Exhibit button and examine the diagram.  You are running a database that takes advantage of features provided by Connection Manager， heterogeneous services， and external procedures. The diagram depicts the components used for the naming method you just configured. Which naming method are you using？（）

A.Host naming method.
B.Local naming method.
C.Directory naming method.
D.External naming method.

单项选择题You experienced a loss of data files in your database. You did not lose any of your control files. You are going to use RMAN to restore and recover the database. Currently， your instance is shut down.  Which sequence of commands is correct to restore and recover your database？（）

A.A
B.B
C.C
D.D