You just issued the following statement: ALTER TABLE SALES DROP COLUMN PROFIT. Which of the following choices identifies when the column will actually be removed from Oracle?（）

A . It will display a list of files that need incremental backup B . It will display a list of files that need backup after five days C . It will display a list of files that were backed up in the last five days D . It will display a list of files that have not been backed up in the last five days E . It will apply the current retention policy to determine the files that need to be backed u

A .  It will display a list of files that need incremental backup B .  It will display a list of files that need backup after five days C .  It will display a list of files that were backed up in the last five days D .  It will display a list of files that have not been backed up in the last five days E .  It will apply the current retention policy to determine the files that need to be backed u

A .  The current control file is not automatically backed up every time you perform a backup. B .  The backups save space on the storage media. C .  While performing backups across a network， the network bandwidth is reduced. D .  The backups consist of backup pieces.

A . The command will not execute successfully because TIMEOUT is an invalid clause with the ALTER DATABASE ENABLE RESUMABLE command. B .  The command will not execute successfully because resumable space allocation is enabled at the session level. C .  The command will execute successfully and resumable space will be allocated at the session level. D .  The command will execute successfully and resumable space will be allocated at the instance level.

A .  The control file will be multiplexed. B .  The control file will be recreated. C . The script containing the CREATE CONTROLFILE statement will be created. D .  The binary backup of the control file will be created.

A . Archived redo log files are backed up along with data files. B . Only data files are backed up and a restore point named FY06Q4 is created. C . Archived log files are backed up along with data files, and the archived log files are deleted. D . The command creates a restore point named FY06Q4 to match the SCN at which this backup is consistent.

A .  The client RDBMS instance can access the file as a read-only file. B .  A new disk cannot be added to a disk group. C .  A disk in a disk group can be taken offline. D .  The client RDBMS instance cannot access the files in the disk group.

A .  The operating system local time zone will be set for a user session using the operating system environment variable. B .  The database local time zone will be set for a user session using the operating system environment variable. C .  The operating system local time zone will be set for the database using the operating system environment D .  The database local time zone will be set for the database using the operating system environment variable.

A . It returns an error because the range partitions P1 and P2 should be of the same range. B . It creates two range partitions (P1, P2). Within each range partition, it creates monthwise subpartitions. C . It creates two range partitions of varying range. For data beyond '1-1-2007,' it creates partitions with a width of one month each. D . It returns an error because the number of tablespaces (TBS1,TBS2,TBS3)specified does not match the number of range partitions (P1,P2) specified.

A .  when the schema of the user， SCOTT， was deleted by mistake 15 minutes ago B .  when the table EMP of the SCOTT schema was dropped by mistake 15 minutes ago C .  when some rows of the table， EMP， in the SCOTT schema were deleted by mistake 15 minutes ago D .  when some incorrect values were inserted in the EMP table in the user Scott’s schema during the last 15 minutes E .  never， because FLASHBACK TABLE is not a valid command in Oracle 10g.

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.

A .  An incremental backup strategy will be used automatically. B .  Read-only datafiles will not be backed up as long as backups of those files already exist and those backups meet established retention criteria. C .  RMAN will configure itself for maximum performance at the cost of CPU. D .  RMAN will configure itself for minimal OS/CPU impact at the cost of time to back up the database. E .  RMAN will automatically compress backups.

A .  when all the control files are missing and only a binary backup of the current control file exists B .  when a multiplexed copy of the current control file is missing C . when all the control files are missing and only a script containing the CREATE CONTROLFILE statement exists D .  when the SPFILE is missing

A .  After two days，a backup will be marked obsolete B .  After two days，a backup will be deleted from the media C .  If the RMAN repository has records of two or more recent backups of a file，then older backups will be deleted from the media. D .  If the RMAN repository has records of two or more recent backups of a file then older backups will be marked obsolete.

A .  to configure RMAN to maintain backup information in the RMAN repository for seven days B .  to configure RMAN to maintain backup information in the control file for at least seven days C .  to display the list of files that have not been backed up for the last seven days D .  to display the list of files that must be backed up within seven day

A .  If you perform a backup across a network， then the backup will reduce the bandwidth. B .  If you perform a backup of a datafile， then the backup will be the same as the operating system copy of the datafile. C .  If you perform a backup of a single datafile， then the control file will not be backed up.  D .  The maximum size of each backup set is 10MB E .  The backups will be performed on the disk.

A . All data along with the table structure is deleted  B . The pending transaction in the session is committed  C . All indexes on the table will remain but they are invalidated  D . All views and synonyms will remain but they are invalidated  E . All data in the table are deleted but the table structure will remai

A .  It will display a list of files that need incremental backup. B .  It will display a list of files that need backup after five days. C .  It will display a list of files that were backed up in the last five days. D .  It will display a list of files that have not been backed up in the last five days. E .  It will apply the current retention policy to determine the files that need to be backed up.

A . After two days, a backup will be marked obsolete B . After two days, a backup will be deleted from the media C . If the RMAN repository has records of two or more recent backups of a file, then older backups will be deleted from the media. D . If the RMAN repository has records of two or more recent backups of a file, then older backups will be marked obsolete.

A．/var/tmp/ B． /var/config/saved/ C． /var/home/user/ D． /config/

<img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/48e2bbf7dc66a1983e0c43f256ecc7a7.jpg' /> A.A B.B C.C D.D

A. TK1 show version B. TK1 show protocols C. TK1 show interfaces D. TK1 show controllers E. TK1 show ip interface F. TK1 show startup-config