单选题You executed the following command to start the database:  SQL STARTUP  ORACLE instance started.  Total System Global Area 281018368 bytes  Fixed Size 789000 bytes  Variable Size 229635576 bytes  Database Buffers 50331648 bytes  Redo Buffers 262144 bytes ORA-00205: error in identifying controlfile, check alert log for more info  Which view would you query at this stage to investigate this missing control file?()AV$INSTANCEBV$CONTROLFILECDBA_CONTROL_FILESDV$DATABASE_PROPERTIESEV$CONTROLFILE_RECORD_SECTION

单选题
You executed the following command to start the database:  SQL> STARTUP  ORACLE instance started.  Total System Global Area 281018368 bytes  Fixed Size 789000 bytes  Variable Size 229635576 bytes  Database Buffers 50331648 bytes  Redo Buffers 262144 bytes ORA-00205: error in identifying controlfile, check alert log for more info  Which view would you query at this stage to investigate this missing control file?()
A

V$INSTANCE

B

V$CONTROLFILE

C

DBA_CONTROL_FILES

D

V$DATABASE_PROPERTIES

E

V$CONTROLFILE_RECORD_SECTION


参考解析

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You installed Oracle Database 11g and are performing a manual upgrade of the Oracle9i database. As a part of the upgrade process, you execute the following script:SQL@utlu111i.sqlWhich statement about the execution of this script is true?()A. It must be executed from the Oracle Database 11g environment.B. It must be executed only after the SYSAUX tablespace has been created.C. It must be executed from the environment of the database that is being upgraded.D. It must be executed only after AUTOEXTEND is set to ON for all existing tablespaces.E. It must be executed from both the Oracle Database 11g and Oracle Database 9i environments.

You executed the following command to perform a backup of the USERS tablespace:  SQL ALTER TABLESPACE users BEGIN BACKUP; ALTER TABLESPACE users BEGIN BACKUP *  ERROR at line 1:  ORA-01123: cannot start online backup; media recovery not enabled  What could be the reason for this error()A、The MTTR Advisor is disabled.B、The database is in NOARCHIVELOG mode.C、The tablespace is already in backup mode.D、The Flash Recovery Area is not configured.

Your database is up and running and one of your three control files is accidentally erased. You start RMAN and run the following command:   RESTORE CONTROLFILE FROM AUTOBACKUP;   Which of the following statements is true?() A、 The command restores only the missing control file.B、 The command restores all the control files.C、 The command fails because the database is running.D、 This is the correct way to address this problem.E、 This is not the correct way to address this problem.

You executed the following command in Recovery Manager (RMAN) to perform a backup of the DETTBS tablespace:  RMAN BACKUP TABLESPACE DETTBS;  Under which conditions would this command execute successfully? ()A、The database is in NOMOUNT state.B、The database is in ARCHIVELOG mode and the tablespace is online.C、The database is in ARCHIVELOG mode and the tablespace is offline.D、The database is in NOARCHIVELOG mode and the tablespace is online.E、The database is in NOARCHIVELOG mode and the tablespace is offline.

You executed the following command to back up the control file: ALTER DATABASE BACKUP CONTROLFILE TO TRACE; What do you find in the trace file?()A、Image of the control fileB、Location of the control fileC、Contents of the control file in text formatD、SQL command to re-create the databaseE、SQL command to re-create the control fileF、Contents of the control file in binary format

You work as a database administrator for Supportcenter.cn. When you tried to connect to the database, you received the following error:   ERROR:   ORA-12541:TNS:no_listener   You found that the listener is not running on the server, so you issued the following command in the Listener Control utility to start the listener.   lsnrctlSTART   What statement is true?()A、It would attempt to start the default listenerB、It would start the most recently created listener.C、It would display an error with a message asking for the listener name to be specified.D、It would show you a list of listeners and prompts for the listener name that you want to start.

You work as a database administrator for Supportcenter.cn. You added atablespaceto your database. Because of the changes to the physical structure of your database, you performed a backup of the control file to trace. After this, you lost only the control files and the instance aborted due to a hardware failure. How would you proceed to recover the database?()A、Start the instance and open the database, instance recovery automatically recoverscontrol filesB、Create a file based on the contents of the trace file and save it to the control file locations and start the databaseC、Re-create the database (The recovery of the control file is not possible because you have lost all the control files.)D、Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.E、Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

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You are maintaining the PROD database for NetFx Corporation. You have configured controlfile autobackup in your database. At 6:00 P.M. on Monday, you issue the following command:       RMANBACKUP DATABASE;  At 8:00 A.M. on Tuesday, you are unable to start the database because all the control files are missing. You decide to restore the control files from the backup by using the RMAN RESTORE CONTROLFILE FROM AUTOBACKUP; command. Which operation should you perform before using the RMAN RESTORE CONTROLFILE FROM AUTOBACKUP; command?()A、 Start the database in the MOUNT stage.B、 Back up the control file to trace.C、 Set the DBIDD、 Issue the RECOVER DATABASE command.

You execute the following command to start an Automatic Storage Management (ASM) instance:   SQLSTARTUP;   In which of the following modes will the ASM instance start?()A、 OPENB、 MOUNTC、 NORMALD、 NOMOUNT

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You have lost all your database control files. To recover them, you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact.  Which of the following is true regarding your recovery?()  A、 You will need to open the database with the resetlogs command.B、 All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C、 You will use the resetlogs version of the create controlfile command.D、 You will use the noresetlogs version of the create controlfile command.E、 You will use the trace file to create a backup control file, and then you will recover the database with the recover database using backup controlfile command

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单选题You executed the STARTUP MOUNT command to start your database. For which database operation do you need to start the database in the MOUNT state?()Arenaming the control filesBdropping a user in your databaseCenabling or disabling redo log archivingDdropping a tablespace in your databaseEre-creating the control files, after you lost all the control files in your database

单选题You executed the following command to back up your control file:  ALTER DATABASE BACKUP CONTROLFILE TO TRACE;  Which initialization parameter is used to specify the location of the trace file?()AUSER_DUMP_DESTBCORE_DUMP_DESTCTRACE_DUMP_DESTDBACKUP_DUMP_DESTEBACKGROUND_DUMP_DEST

单选题You work as a database administrator for Certkiller .com. When you tried to connect to the database, you received the following error: ERROR:  ORA-12541:TNS:no_listener  You found that the listener is not running on the server, so you issued the following command in the Listener Control utility to start the listener.  lsnrctlSTART  What statement is true?()AIt would attempt to start the default listenerBIt would start the most recently created listener.CIt would display an error with a message asking for the listener name to be specified.DIt would show you a list of listeners and prompts for the listener name that you want to start.

单选题You executed the following command in Recovery Manager (RMAN):  RMAN RESTORE CONTROLFILE;  Which operation must you perform before this command is executed?()A back up the control file to traceB bring database to the MOUNT stateC open a connection to the RMAN recovery catalog, which contains the RMAN metadata for the target databaseD set the database ID (DBID), but only if the DB_NAME parameter associated with the target database is unique in the recovery catalog

单选题You execute the following command to start an Automatic Storage Management (ASM) instance:   SQLSTARTUP;   In which of the following modes will the ASM instance start?()A OPENB MOUNTC NORMALD NOMOUNT

单选题You executed the following command to perform a backup of the USERS tablespace:SQL ALTER TABLESPACE users BEGIN BACKUP;ALTER TABLESPACE users BEGIN BACKUP* ERROR at line 1: ORA-01123: cannot start online backup; media recovery not enabled What could be the reason for this error()AThe MTTR Advisor is disabled.BThe database is in NOARCHIVELOG mode.CThe tablespace is already in backup mode.DThe Flash Recovery Area is not configured

多选题You executed the following command in Recovery Manager (RMAN) to perform a backup of the DETTBS tablespace:  RMAN BACKUP TABLESPACE DETTBS;  Under which conditions would this command execute successfully? ()AThe database is in NOMOUNT state.BThe database is in ARCHIVELOG mode and the tablespace is online.CThe database is in ARCHIVELOG mode and the tablespace is offline.DThe database is in NOARCHIVELOG mode and the tablespace is online.EThe database is in NOARCHIVELOG mode and the tablespace is offline.

单选题Examine the following commands executed in your database: SQL ALTER SESSION RECYCLEBIN=ON; Session altered  SQL  CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees;  Table created.  Further, you executed the following command to drop the table:  SQL DROP TABLE emp;Table dropped.  What happens in this scenario?()AThe table is moved to the SYSAUX tablespace.BThe table is moved to the SYSTEM tablespace.CThe table is removed from the database permanently.DThe table is renamed and remains in the TBSFD tablespace.

单选题You executed the following commands in an RMAN session for your database instance that has failures: RMAN LIST FAILURE; After some time, you executed the following command in the same session: RMAN ADVISE FAILURE; But there are new failures recorded in the Automatic Diagnostic Repository (ADR) after the execution of the last LIST FAILURE command. Which statement is true for the above ADVISE FAILURE command in this scenario?()AIt produces a warning for new failures before advising for CRITICAL and HIGH failures.BIt ignores new failures and considers the failures listed in the last LIST FAILURE command only.CIt produces an error with recommendation to run the LIST FAILURE command before the ADVISE FAILURE command.DIt produces advice only for new failures and the failures listed in the last LIST FAILURE command are ignored.

单选题You executed the following command in Recovery Manager (RMAN):  RMAN RESTORE CONTROLFILE;  Which operation must you perform before this command is executed?()Aback up the control file to traceBbring database to the MOUNT stateCopen a connection to the RMAN recovery catalog, which contains the RMAN metadata for the target databaseDset the database ID (DBID), but only if the DB_NAME parameter associated with the target database is unique in the recovery catalog

单选题You executed the following command to back up the control file: ALTER DATABASE BACKUP CONTROLFILE TO TRACE; What do you find in the trace file?()AImage of the control fileBLocation of the control fileCContents of the control file in text formatDSQL command to re-create the databaseESQL command to re-create the control fileFContents of the control file in binary format