单项选择题
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.
单项选择题 UsersinyourPRODdatabasecomplainabouttheslowresponseofthetransactions.Whileinvestigatingthereason，youfindthatthetransactionsarewaitingfortheundosegmentstobeavailable，andundoretentionhasbeensettozero.Whatwouldyoudotoovercomethisproblem？（）
单项选择题 Thecustomerandordertablesareoftenusedinjoins，therebyresultingincomplexqueries.Youcreatedviewstosimplifythewritingofqueries.Theseviewsarestoredin（）.
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？（）