单项选择题
In the instance of the PROD database， the checkpoint （CKPT） process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration， the CKPT process gets initiated before the user commits the transaction. What would happen to the modified blocks when the CKPT process is started？（）
A.The modified blocks would be written to the data files.
B.The modified blocks would be written to the temp files.
C.The modified blocks would be written to the control file.
D.The modified blocks would be written to the redo log files.
E.The modified blocks would be written to the archived redo log files.
F.The modified blocks would be retained in the database buffer cache.
相关考题
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单项选择题
UsersinyourPRODdatabasecomplainabouttheslowresponseofthetransactions.Whileinvestigatingthereason，youfindthatthetransactionsarewaitingfortheundosegmentstobeavailable，andundoretentionhasbeensettozero.Whatwouldyoudotoovercomethisproblem？（）
A.increase the undo retention
B.create more undo segments
C.create another undo tablespace
D.increase the size of the undo tablespace -
单项选择题
Thecustomerandordertablesareoftenusedinjoins，therebyresultingincomplexqueries.Youcreatedviewstosimplifythewritingofqueries.Theseviewsarestoredin（）.
A.user tables
B.view segment
C.table segment
D.data dictionary
E.object segment
F.performance tables -
单项选择题
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？（）
A.stop and restart the listener process
B.set the TNS_ADMIN environmental variable
C.stop all running listener processes and restart the listener process
D.change the port number to an unused port number and restart the listener process
E.change the IP address to host machine name in the LISTENER.ORA file and restart the listener process
