Which three are true about a whole database backup? 选项： A: It can

1.Which three are true about a whole database backup? 选项： A:It can be created only by using RMAN B:It can be inconsistent C:It can consist of either backup sets or image copies D:It is the only possible backup type for a database in NOARCHIVELOG mode E:It always includes all data files, the current control file, the server parameter file, and archived redo logs

2.Which three are true about a whole database backup? 选项： A:It can be created only by using RMAN B:It is the only possible backup type for a database in NOARCHIVELOG Mode C:It can be consistent D:It can consist of either backup sets or image copies E:It can be inconsistent F:It always includes all data files, the current control file, the Server parameter file, and archived redo logs

3.Which three are true about a whole database backup? 选项： A: It can be created only by using RMAN B: It is the only possible backup type for a database in NOARCHIVELOG mode C: It can be consistent. D: It can consist of either backup sets or image copies E: It can be inconsistent F: It always includes all data files, the curent control file, the server parameter file, and archived redo logs.

4.You take your database backups using the RMAN media management interface (MMI) Which two are true about the use of the RMAN MMI? 选项： A: You can use it to create image copies to disk B: You can use it to create backup sets for file systems C: You can use it to create backup sets for database files D: You can use it to create proxy copies for database files E: You can use it to create image copies to tape

5. Which three statements are true about Flashback Database? 选项： A:Flashback logs are written sequentially, and are archived、 B:Flashback Database uses a restored control file to recover a database、 C: The Oracle database automatically creates, deletes, and resides flashback logs in the Fast RecoveryArea、 D: Flashback Database can recover a database to the state that it was in before a reset logs operation、 E: Flashback Database can recover a data file that was dropped during the span of time of the flashback、 F:Flashback logs are used to restore to the blocks' before images, and then the redo data may be used toRoll forward to the desired flashback time、

6.A database is configured in ARCHIVELOG mode.Full RMAN backups are taken daily and no backup to trace has been taken of the control file.A media failure has occurred.In which two scenarios is complete recovery possible? 选项： A:after losing the SYSTEM tablespace B:after losing all copies of the control file C:after losing an archived log from after the most recent backup D:when any archived log from, before or after the most recent backup is corrupt E:after losing an archived log from before the most recent backup

7.Choose two Which two are true about RMAN Multisection backups when a very large data file is divided into four sections? 选项： A: The four sections must be image copies B: The four sections must be contained in backup sets C: The four sections can be created serially D: Each of the file sections must be processed serially E: The four sections can be created in parallel

8.A database is configured in ARCHIVE LOG mode.Full RMAN backups are taken and no backup to trace has been taken of the control file. A media failure has occurred.In which two scenarios is complete recovery possible? (Choose two.) 选项： A:when any archived log from, before, or after the most recent backup is corrupt. B:after losing all copies of the control file C:after losing an archived log from after the most recent backup D:after losing an archived log from before the most recent backup E:after losing the SYSTEM tablespace

9.A database is configured in ARCHIVE LOG mode. Full RMAN backups are taken and no backup to trace has been taken of the control file. A media failure has occurred. In which two scenarios is complete recovery possible? (Choose two.) 选项： A:C. after losing an archived log from after the most recent backup B:Bafter losing all copies of the control file C:Eafter losing the SYSTEM tablespace D:Dafter losing an archived log from before the most recent backup E:Awhen any archived log from, before, or after the most recent backup is corrupt.

10.For your database, an incremental level 1 backup is taken every week day. On Tuesday, before the backup is performed, you add a new tablespace. You execute the command:RMAN> BACKUP INCREMENTAL LEVEL 1 FOR RECOVER OF COPY WITH TAG WEEKLY DATABASE;Which statement is true about the execution of the command? 选项： A: It returns an error because there is no level 0 backup available for new data files. B: It performs an image copy backup of new data files, and a level 1 incremental backup of all other data files. C: It performs a level-0 backup of all data files including those that belong to the new tablespace. D: It performs an image copy backup of all data files including those that belong to the new tablespace. E: It performs a backup as a backup set of all data files including those that belong to the new tablespace.

11.For your database, an incremental level 1 backup is taken every week day. On Tuesday, before the backupIs performed, you add a new tablespace.You execute the command:RMAN> BACKUP INCREMENTAL LEVEL 1 FOR RECOVER OF COPY WITH TAG WEEKLY DATABASE;Which statement is true about the execution of the command? 选项： A: It returns an error because there is no level 0 backup available for new data files. B: It performs an image copy backup of new data files, and a level 1 incremental backup of all other dataFiles. C: It performs a level-0 backup of all data files including those that belong to the new tablespace. D: It performs an image copy backup of all data files including those that belong to the new tablespace. E: It performs a backup as a backup set of all data files including those that belong to the new tablespace.

12.2021年2月1日 10Which two are true about the RMAN CROSSCHECK command? 选项： A: It sets the status of RMAN repository entries for any missing files to OBSOLETE B: It sets the status of RMAN repository entries for any missing files to EXPIRED C: It checks for the existence of and validates the file headers for all specified backup sets, image copy, and archive log files. D: It produces a detailed analysis of the RMAN repository E: It identifies the files that are no longer required to satisfy backup retention policies.

13.For your database, an incremental level 1 backup is taken every week day. On Tuesday, before the backup is performed, you add a new tablespace. You execute the command:

RMAN> BACKUP INCREMENTAL LEVEL 1 FOR RECOVER OF COPY WITH TAG WEEKLY DATABASE;

Which statement is true about the execution of the command?

选项： A:

It returns an error because there is no level 0 backup available for new data files.

B:

It performs an image copy backup of new data files, and a level 1 incremental backup of all other data files.

C:

It performs a level-0 backup of all data files including those that belong to the new tablespace.

D:

It performs an image copy backup of all data files including those that belong to the new tablespace

E:

It performs a backup as a backup set of all data files including those that belong to the new tablespace.

14.Identify two situations in which you can use Data Recovery Advisor for recovery.（）选项： A、A The user has dropped an important table that needs to be recovered. B、B The database files are corrupted when the database is open. C、C You are not able to start up the database instance because the required database files are missing. D、D The archived log files are missing for which backup is not available.

15.Identify two situations in which you can use Data Recovery Advisor for recovery. （）(Choose two.) 选项： A、AThe user has dropped an important table that needs to be recovered. B、BThe database files are corrupted when the database is open. C、CYou are not able to start up the database instance because the required database files are missing. D、DThe archived log files are missing for which backup is not available.

16.About the type parameter “T” in the C++ class template, which of the following statements is correct (). 选项： A、Types can only be used as data members B、Types can only be used as the return type of member functions C、 Types can only be used as the parameter type of member functions D、 All three of the above are correct

17.About the type parameter “T” in the C++ class template, which of the following statements is correct (). 选项： A、Types can only be used as data members B、Types can only be used as the return type of member functions C、 Types can only be used as the parameter type of member functions D、 All three of the above are correct

18. 228Choose two You take your database backups by using the RMAN media management interface (MMI). Which two are true about the use of the RMAN MMI? 选项： A:You can B:You can C:You can D:You can E:You can

19.备份整个数据库使用Transact-SQL语言的(())语句实现。选项： A:BACKUP B:BACKUP DATABASE C:BACKUP LOG D:BACKUP FILE

20.Choose two.Which two statements are true concerning logical and physical database structures? 选项： A、A segment might have only one extent. B、A segment's blocks can be of different sizes. C、Segments can span multiple tablespaces. D、All tablespaces may have one or more data files. E、A segment can span multiple data files in some tablespaces.

21.Files can be lost or destroyed accidentally. Keep ( ) copies of all data on removableStorage media. 选项： A: backup B: back C: black D: backdown