单选题You have lost all members of your current redo log file group. You issue this query: SQL select * from v$log;  GROUP#    SEQ#     BYTES        ARC STATUS            FIRST_NAME  1                  60           153600        NO INACTIVE            01-03-09:19:34  2                  61           153600        NO CURRENT            01-03-09:19:50  You then perform an incomplete recover. You receive this message: ORA-00279:  change 309141...03/09/01 19:50:14 Needed for thread 1  ORA-00289: suggestion : /disk1/archive/arch_61.rdo ORA-00280: change 309043 for thread 1 is in  sequence #61 Specify log: {=suggested | filename | AUTO | CANCEL} How should you respond to this message?()AEnter the keyword AUTO.BEnter the keyword CANCEL.CPress the Enter or Return key.DEnter the filename ’/disk1/archive/log2a.rdo’.

单选题
You have lost all members of your current redo log file group. You issue this query: SQL> select * from v$log;  GROUP#    SEQ#     BYTES        ARC STATUS            FIRST_NAME  1                  60           153600        NO INACTIVE            01-03-09:19:34  2                  61           153600        NO CURRENT            01-03-09:19:50  You then perform an incomplete recover. You receive this message: ORA-00279:  change 309141...03/09/01 19:50:14 Needed for thread 1  ORA-00289: suggestion : /disk1/archive/arch_61.rdo ORA-00280: change 309043 for thread 1 is in  sequence #61 Specify log: {=suggested | filename | AUTO | CANCEL} How should you respond to this message?()
A

Enter the keyword AUTO.

B

Enter the keyword CANCEL.

C

Press the Enter or Return key.

D

Enter the filename ’/disk1/archive/log2a.rdo’.


参考解析

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相关考题:

Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains oneredo member. When you attempt to start the database, you receive the following errors:ORA-00313: open failed for members of log group 1 of thread 1ORA-00312: online log 1 thread 1: ‘D:\REDO01.LOG‘You discover that the online redo log file of the current redo group is corrupted.Which statement should you use to resolve this issue?()A. ALTER DATABASE DROP LOGFILE GROUP 1;B. ALTER DATABASE CLEAR LOGFILE GROUP 1;C. ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;D. ALTER DATABASE DROP LOGFILE MEMBER ‘D:\REDO01.LOG

Redo log files are multiplexed in your database. The disk in which you have one of the redo log members is highly fragmented. In the process of defragmentation you lose the redo log member, which is not a member of the current group. How would you recover from the loss of the redo log member?()A、SMON would automatically restore the lost file.B、You would need to restore the whole database from the last backup.C、You would need to restore the file from the last full database backup.D、You would need to use flashback technology to restore the lost redo log member.E、You would need to use Recovery Manager (RMAN) to restore the lost redo log member.F、You would need to restore the missing log file by copying one of the remaining files from the same group.

You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement:       SQLALTER DATABASE OPEN RESETLOGS;   Which of the following options is true about using the RESETLOGS option?()A、 The log sequence is reset to 0.B、 All the online redo logs are deleted.C、 All the archived redo logs from a previous incarnation become useless.D、 The full database backup taken from a previous incarnation can be used in future.E、 Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.

You are maintaining your OLTP database in Oracle10g. While observing the performance of the database, you find that the log switch occurs more than once for every 20 minutes, affecting the database performance. Which factor is responsible for frequent log switches?()  A、the value of the UNDO_RETENTION initialization parameterB、the value of the optimal redo log file size provided by the Redo Logfile Size AdvisorC、the online redo log files sizeD、the number of redo log members in a group

As soon as you discover that you have lost an online redo log, if the database is still functioning, what should be your first action?()  A、 Shut down the databaseB、 Clear the online redo logC、 Back up the databaseD、 Checkpoint the databaseE、 Call Oracle support

Because of hardware failure, you decided to drop a redo log member from the database. Which condition should be met to drop a redo log file?()A、 The redo log file should belong to an active group.B、 The redo log file should belong to an inactive group.C、 The redo log file should belong to the current group.D、 The redo log file can be dropped only if all the transactions are stopped.E、 Before a redo log file is dropped, it should be deleted from the operating system (OS).

One of the redo log members in your database is lost. You queried V$logfile for further details. What would be the member’s status?()A、LOSTB、INVALIDC、EXPIREDD、DELETEDE、CORRUPTF、UNKNOWNG、OBSOLETE

In your database, the Log Writer (LGWR) process is unable to write to a member of a current redo log group due to read/write failure. Which two effects would you see in your database?()A、The database instance aborts.B、The database operation temporarily halts till the member becomes available.C、Writing proceeds as normal. LGWR writes to the available members of a group and ignores the unavailable members.D、The member would be marked as STALE and an error message would be written to the alert log file and LGWR trace file.E、The status of the group changes to INACTIVE and an error message would be written to the alert log file and LGWR trace file.

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Your database is functioning in ARCHIVELOG mode. In which two situations would you perform a cancel-based recovery? ()A、 You find that one of the redo log members in each redo log group is lost.B、 You find that a data file that belongs to the USERS tablespace is damaged.C、 You find that a data file that belongs to the SYSTEM tablespace is damaged.D、 You find that the current redo log group is damaged and is not available for recovery.E、 You realized while performing a recovery that an archived redo log file needed for recovery is lost.

Your database is in ARCHIVELOG mode. You have two online redo log groups each of which contains one redo member. When you attempt to start the database, you receive the following errors:   ORA-00313: open failed for members of log group 1 of thread 1   ORA-00312: online log 1 thread 1: ’D:///REDO01.LOG’   You discover that the online redo log file of the current redo group is corrupted.  Which statement should you use to resolve this issue?()A、 SQLALTER DATABASE DROP LOGFILE GROUP 1;B、 SQLALTER DATABASE CLEAR LOGFILE GROUP 1;C、 SQLALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;D、 SQLALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’;

单选题One of the redo log members in your database is lost. You queried V$logfile for further details. What would be the member’s status?()ALOSTBINVALIDCEXPIREDDDELETEDECORRUPTFUNKNOWNGOBSOLETE

单选题Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains one redo member. When you attempt to start the database, you receive the following errors: ORA-00313: open failed for members of log group 1 of thread 1 ORA-00312: online log 1 thread 1: 'D:/REDO01.LOG' You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue?()AALTER DATABASE DROP LOGFILE GROUP 1;BALTER DATABASE CLEAR LOGFILE GROUP 1;CALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;DALTER DATABASE DROP LOGFILE MEMBER 'D:/REDO01.LOG

单选题Your database has a backup that was taken yesterday (Tuesday) between 13:00 and 15:00 hours. This is the only backup you have. You have lost all the archived redo logs generatedsince the previous Monday, but you have archived redo logs available from the previous Sunday and earlier. You now need to restore your backup due to database loss.  To which point can you restore your database?()A 13:00 on Tuesday.B 15:00 on Tuesday.C Up until the last available archived redo log on Sunday.D To any point; all the redo should still be available in the online redo logs.E The database is not recoverable.

单选题Because of hardware failure, you decided to drop a redo log member from the database. Which condition should be met to drop a redo log file?()A The redo log file should belong to an active group.B The redo log file should belong to an inactive group.C The redo log file should belong to the current group.D The redo log file can be dropped only if all the transactions are stopped.E Before a redo log file is dropped, it should be deleted from the operating system (OS).

多选题Your database is functioning in ARCHIVELOG mode. In which two situations would you perform a cancel-based recovery? ()AYou find that one of the redo log members in each redo log group is lost.BYou find that a data file that belongs to the USERS tablespace is damaged.CYou find that a data file that belongs to the SYSTEM tablespace is damaged.DYou find that the current redo log group is damaged and is not available for recovery.EYou realized while performing a recovery that an archived redo log file needed for recovery is lost.

单选题You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement:       SQLALTER DATABASE OPEN RESETLOGS;   Which of the following options is true about using the RESETLOGS option?()A The log sequence is reset to 0.B All the online redo logs are deleted.C All the archived redo logs from a previous incarnation become useless.D The full database backup taken from a previous incarnation can be used in future.E Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.

单选题Redo log files are multiplexed in your database. The disk in which you have one of the redo log members is highly fragmented. In the process of defragmentation you lose the redo log member, which is not a member of the current group. How would you recover from the loss of the redo log member?()ASMON would automatically restore the lost file.BYou would need to restore the whole database from the last backup.CYou would need to restore the file from the last full database backup.DYou would need to use flashback technology to restore the lost redo log member.EYou would need to use Recovery Manager (RMAN) to restore the lost redo log member.FYou would need to restore the missing log file by copying one of the remaining files from the same group.

单选题The performance of your database is affected by the presence of two log members in each online redo log group and the placement of redo log members of a group on the same disk. You decide to place the redo log members of a group on separate disks. Which view will you query to find the name and location of all the online redo log members?()A V$LOGB V$LOGFILEC DBA_LOG_GROUPSD V$LOG_HISTORY

单选题In which situation are you NOT required to perform an incomplete recovery?()A when all the control files are lostB when all the members of a redo log group are lostC when a table is dropped and purged from the Recycle BinD when a temporary file of the default temporary tablespace is lost

单选题In your database, online redo log files are multiplexed and one of the members in a group is lost due to media failure? How would you recover the lost redo log member?()A import the database from the last exportB restore all the members in the group from the last backupC drop the lost member from the database and then add a new member to the groupD restore all the database files from the backup and then perform a complete recoveryE restore all the database files from the backup and then perform an incomplete recovery

单选题You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode. The database has been configured with three redo logs groups, and there have been five log switches. You lost one non-system-critical data file from your database.  Which method would you use to recover the data file?()ARestore all the data files and open the databaseBCreate the data file and performtablespacerecoveryCNo need to restore any file, just recover the databaseDRestore only the system data file and recover the databaseERestore only lost date file and performtablespacerecovery

单选题Which statement about recovering from the loss of a redo log group is true?()A If the lost redo log group is ACTIVE, you should first attempt to clear the log file.B If the lost redo log group is CURRENT, you must clear the log file.C If the lost redo log group is ACTIVE, you must restore,perform cancel-based incomplete recovery,and open the database using the RESETLOGS option.D If the lost redo log group is CURRENT, you must restore,perform cancel-based incomplete recovery,and open the database using the RESETLOGS option.

多选题In your database, the Log Writer (LGWR) process is unable to write to a member of a current redo log group due to read/write failure. Which two effects would you see in your database?()AThe database instance aborts.BThe database operation temporarily halts till the member becomes available.CWriting proceeds as normal. LGWR writes to the available members of a group and ignores the unavailable members.DThe member would be marked as STALE and an error message would be written to the alert log file and LGWR trace file.EThe status of the group changes to INACTIVE and an error message would be written to the alert log file and LGWR trace file.

单选题Your database is in ARCHIVELOG mode. You have two online redo log groups each of which contains one redo member. When you attempt to start the database, you receive the following errors:   ORA-00313: open failed for members of log group 1 of thread 1   ORA-00312: online log 1 thread 1: ’D:///REDO01.LOG’   You discover that the online redo log file of the current redo group is corrupted.  Which statement should you use to resolve this issue?()A SQLALTER DATABASE DROP LOGFILE GROUP 1;B SQLALTER DATABASE CLEAR LOGFILE GROUP 1;C SQLALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;D SQLALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’;