单选题A backup is taken using the following command:tar -cvf abcdef.tar /usr/local/include/tcpd.h The operator is in the directory /usr/local/restores and runs the following command: tar -xvf abcdef.tar. Where will the file be restored?()A/usr/local/include/tcpd.hB/usr/local/restores/tcpd.hC/usr/local/restores/include/tcpd.hD/usr/local/restores/usr/local/include/tcpd.h

单选题
A backup is taken using the following command:tar -cvf abcdef.tar /usr/local/include/tcpd.h The operator is in the directory /usr/local/restores and runs the following command: tar -xvf abcdef.tar. Where will the file be restored?()
A

/usr/local/include/tcpd.h

B

/usr/local/restores/tcpd.h

C

/usr/local/restores/include/tcpd.h

D

/usr/local/restores/usr/local/include/tcpd.h


参考解析

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Examine the following RMAN command:Which two statements are true regarding the backup taken by using the above RMAN command?() A. Only data files and the control file are backed up.B. Archived redo logs are backed up only I f the database is open during the backup.C. The backup is deleted after one day, regardless of the default retention policy settings.D. The backup becomes obsolete after one day, regardless of the default retention policy settings.

Which of the following techniques is used to extract the /usr/tmp directory from a mksysb backup?() A.Use the tar command on the fifth image.B.Use the restore command on the fourth image.C.Use tctl -f /dev/rmt0.1 fsf 3 followed by the tar command on the fourth image.D.Reboot using the mksysb tape and then use the dd command to extract the file.

使用tar命令将/home备份打包为home.tar?() A.tar cvf /home home.tarB.tar tvf home.tar /homeC.tar cvf home.tar /homeD.tar xvf home.tar /home

In Recovery Manager (RMAN), you have set control file autobackup to ON by using the following command:  CONFIGURE CONTROLFILE AUTOBACKUP ON;  Which two events would cause the control file to be backed up automatically? ()A、a tablespace is taken offlineB、the database instance is restartedC、a new data file is added to an existing tablespaceD、a successful backup is recorded in the RMAN repositoryE、the RMAN connection is disconnected from the target database

使用tar命令将/home备份打包为home.tar?()A、tar cvf /home home.tarB、tar tvf home.tar /homeC、tar cvf home.tar /homeD、tar xvf home.tar /home

通常使用tar进行文件打包或者解包,解包必须在tar后跟随cvf参数。

Which command(s) will result in the smallest sized backup of the text files contained in the /staticFS filesystem?()  A、tar -cvf file_system.tar /staticFS ; gzip file_system.tarB、tar -xvf /staticFS file_system.tar ; gzip file_system.tarC、tar -cvf /staticFS file_system.tar ; compress file_system.tarD、tar -xvf file_system.tar /staticFS  ; compress file_system.tar

Which of the following techniques is used to extract the /usr/tmp directory from a mksysb backup?()A、Use the tar command on the fifth image.B、Use the restore command on the fourth image.C、Use tctl -f /dev/rmt0.1 fsf 3 followed by the tar command on the fourth image.D、Reboot using the mksysb tape and then use the dd command to extract the file.

A backup is taken using the following command:tar -cvf abcdef.tar /usr/local/include/tcpd.h The operator is in the directory /usr/local/restores and runs the following command: tar -xvf abcdef.tar. Where will the file be restored?()A、/usr/local/include/tcpd.hB、/usr/local/restores/tcpd.hC、/usr/local/restores/include/tcpd.hD、/usr/local/restores/usr/local/include/tcpd.h

Examine the following command used to perform incremental level 0 backup:   RMAN BACKUP INCREMENTAL LEVEL 0 DATABASE;   To enable the block change tracking, after the incremental level 0 backup you issued the following command:   SQL ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ’/mydir/ rman_change_track.f’;To perform incremental level 1 cumulative backup, you issued the following command:   RMAN BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;   Which two statements are true in the above situation?()A、 The block change tracking data will be used only from the next incremental 0 backup.B、 The incremental backup will use change tracking data for accomplishing the backup.C、 The incremental backup will not use change tracking data for accomplishing the backup.D、 The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0 backup.

Examine the following RMAN command:   BACKUP DATABASE TAG TESTDB  KEEP UNTIL ’SYSDATE+1’ RESTORE POINT TESTDB06;   Which two statements are true regarding the backup taken by using the above RMAN command?()  A、 Only data files and the control file are backed up.B、 Archived redo logs are backed up only if the database is open during the backup.C、 The backup is deleted after one day,regardless of the default retention policy settings. D、 The backup becomes obsolete after one day,regardless of the default retention policy settings.

You issued the following RMAN command:  RMAN CONFIGURE CONTROLFILE AUTOBACKUP ON;     What is NOT an impact of using the above command?()A、 When a successful backup is recorded in the RMAN repository, then a backup of the current control file is performed.B、 When a structural change is made to the database, then a backup of the current control file is performed.C、 When a successful backup is performed in the RMAN repository, then a backup of the spfile is performed.D、 When a structural change is made to the database, then a backup of the alert log file will be performed.

You are maintaining your database in Oracle10g. You are performing the backup by using the BACKUP AS BACKUPSET command at the RMAN prompt. Which file cannot be backed up by using the BACKUP AS BACKUPSET command?()A、DatafilesB、 Current control fileC、 Server parameter file (spfile)D、 Password file

In Recovery Manager (RMAN), you have set control file autobackup to ON by using the following command: CONFIGURE CONTROLFILE AUTOBACKUP ON; Which two events would cause the control file to be backed up automatically? ()A、 A tablespace is taken offline.B、 The database instance is restarted.C、 A new data file is added to an existing tablespace.D、 A successful backup is recorded in the RMAN repository.E、 The RMAN connection is disconnected from the target database.

You perform a backup using the following BACKUP command:   RMAN BACKUP AS COMPRESSED BACKUPSET DATABASE;   Which statement is true of this command?()  A、 A different procedure is required to restore a database from compressed backupsB、 The AS COMPRESSED clause of the BACKUP command provided by RMAN is used to create compressed  backup sets and image copies.C、 Using this command to create backups minimizes the bandwidth consumedD、 Using this command to create backups improves the performance of the backup process

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单选题Assume your situation can be described as follows: x A full backup taken using RMAN is available on disk.  x The current control files were NOT damaged and do not need to be restored.  x All data files are damaged or lost.  x The database is in NOARCHIVELOG mode.  Which RMAN command would be most appropriate to use in line 3 of the following RMAN command set to restore and fully recover your database?() 1. RMAN STARTUP MOUNT  2. RMAN RESTORE DATABASE;  3. RMAN ()  4. RMAN ALTER DATABASE OPEN;ARECOVER DATABASE;BSWITCH DATAFILE ALL;CRESTORE CONTROL FILE;DRECOVER DATABASE USING BACKUP CONTROL FILE;

单选题You perform a backup using the following BACKUP command: RMAN BACKUP AS COMPRESSED BACKUPSET DATABASE; Which statement is true of this command?()AA different procedure is required to restore a database from compressed backupsBThe AS COMPRESSED clause of the BACKUP command provided by RMAN is used to create compressed backup sets and image copies.CUsing this command to create backups minimizes the bandwidth consumedDUsing this command to create backups improves the performance of the backup process

多选题Examine the following RMAN command:   BACKUP DATABASE TAG TESTDB  KEEP UNTIL ’SYSDATE+1’ RESTORE POINT TESTDB06;   Which two statements are true regarding the backup taken by using the above RMAN command?()AOnly data files and the control file are backed up.BArchived redo logs are backed up only if the database is open during the backup.CThe backup is deleted after one day,regardless of the default retention policy settings.DThe backup becomes obsolete after one day,regardless of the default retention policy settings.

单选题You perform a backup using the following BACKUP command:   RMAN BACKUP AS COMPRESSED BACKUPSET DATABASE;   Which statement is true of this command?()A A different procedure is required to restore a database from compressed backupsB The AS COMPRESSED clause of the BACKUP command provided by RMAN is used to create compressed  backup sets and image copies.C Using this command to create backups minimizes the bandwidth consumedD Using this command to create backups improves the performance of the backup process

单选题Adam is working as a Database Administrator (DBA) for TeleSoft Corporation. His database is running in the ARCHIVELOG mode. During database startup, he discovers that one of the disks crashed, resulting in the permanent loss of a read-write USERS tablespace. The USERS01.dbf datafile belongs to the USERS tablespace and is 500 MB in size. He needs to recover the USERS tablespace from the backup. While reviewing the backup details, he discovers that the most recent available backup is five days old. This backup was taken when the USERS tablespace was read-only. After correcting the hardware problem that caused the failure, what should Adam do to recover the USERS tablespace?()A Restore the USERS01.dbf file from the backup, and open the database using the STARTUP command.B Restore the USERS01.dbf file using the RECOVER TABLESPACE command, and open the database using the ALTER DATABASE OPEN statement.C Restore the USERS01.dbf file from the backup, recover the USERS tablespace using the RECOVER TABLESPACE command, and open the database using the ALTER DATABASE OPEN statement.D Restore the USERS01.dbf file from the backup and change the status of the USERS tablespace from read-only to read-write using the ALTER TABLESPACE USERS READ WRITE statement. Then, recover the USERS tablespace using the RECOVER TABLESPACE command, and open the database using the ALTER DATABASE OPEN statement.

单选题Which command(s) will result in the smallest sized backup of the text files contained in the /staticFS filesystem?()Atar -cvf file_system.tar /staticFS ; gzip file_system.tarBtar -xvf /staticFS file_system.tar ; gzip file_system.tarCtar -cvf /staticFS file_system.tar ; compress file_system.tarDtar -xvf file_system.tar /staticFS ; compress file_system.tar

多选题In Recovery Manager (RMAN), you have set control file autobackup to ON by using the following command:  CONFIGURE CONTROLFILE AUTOBACKUP ON;  Which two events would cause the control file to be backed up automatically? ()Aa tablespace is taken offlineBthe database instance is restartedCa new data file is added to an existing tablespaceDa successful backup is recorded in the RMAN repositoryEthe RMAN connection is disconnected from the target database

单选题You have issued the following command:    RMANCONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 100 DAYS;   What will be the result of using the above command?()A The backup metadata will be maintained in the control file for 100 days.B The backup metadata will be maintained in the recovery catalog for 100 days.C The backup metadata will be maintained in the flash recovery area for 100 days.D After 100 days, the backup sets and image copies will be deleted from the media.

多选题Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt:   RMAN CONFIGURE CONTROLFILE AUTOBACKUP ON;   After executing this command, in which of the following cases will RMAN make an auto-backup of the control file? ()Awhen you change the name of a datafileBwhen you drop a table from the databaseCwhen you take an export of the databaseDwhen you back up the database using OS utilitiesEwhen you issue an ALTER SYSTEM SWITCH LOGFILE statementFwhen you issue a BACKUP command from inside the RMAN run block