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问题:

[多选] Which three statements are true about Oracle Data Pump export and import operations?()

A . You can detach from a data pump export job and reattach later.
B . Data pump uses parallel execution server processes to implement parallel import.
C . Data pump import requires the import file to be in a directory owned by the oracle owner.
D . The master table is the last object to be exported by the data pump.
E . You can detach from a data pump import job and reattach later.

You manually create an additional listener process,L1,for databases PROD,  PAYDB and FINDB. While starting up the listener process,you get the following error message: LSNRCTL> start l1  Starting /u01/app/oracle/product/10.1.0/db_1/bin/tnslsnr: please wait...  TNSLSNR for Linux: Version 10.1.0.2.0 - Production  System parameter file is /u01/app/oracle/product/10.1.0/db_1/network/admin/listener.ora Log messages written to /u01/app/oracle/product/10.1.0/db_1/network/log/l1.log Error listening on: (ADDRESS=(PROTOCOL=TCP)(HOST=144.23.230.185)(port=8899))  TNS-12542: TNS:address already in use TNS-12560:  TNS:protocol adapter error TNS-00512: Address already in use  Linux Error: 98: Address already in use  Listener failed to start. See the error message(s) above...  What action would you take to overcome this error without disrupting any existing database communications?() stop and restart the listener process。 set the TNS_ADMIN environmental variable。 stop all running listener processes and restart the listener process。 change the port number to an unused port number and restart the listener process。 change the IP address to host machine name in the LISTENER.ORA file and restart the listener proce。 高压配电装置的操作走廊宽度一般规定() 0.8---1m。 1---1.5m。 1.5---1.8m。 You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays, to tape.  Which two statements are true about differential incremental backups() The backup performed on Sundays contains all the blocks that have ever been used in the database.。 The backup performed on Sundays contains all the blocks that have changed since the last level 1backup. 。 The backup performed on each working day contains all the blocks that have changed since the lastlevel 0 backup.。 The backup performed on Monday contains all the blocks that have changed since the level 0 backup,and every other working day contains all the blocks that have changed since the level 1 backup.。 What is the result?() 0。 1。 4。 Compilation fails.。 An exception is thrown at runtime.。 口底、颌下和颈部的蜂窝织炎时,护士应特别警惕患者是否并发了() 菌血症。 喉头水肿。 海绵状静脉窦炎。 脓毒血症。 呼吸困难。 Which three statements are true about Oracle Data Pump export and import operations?()
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