The UNDO_RETENTION parameter in your database is set to 1000 and undo retention is not guaranteed. Which statement regarding retention of undo data is correct？（）

A .  FRENCH_AI B .  FRENCH_CI C .  AI_FRENCH D .  CI_FRENCH

A . The COMMIT order in the captured workload is preserved during replay. B . The value 100 in the THINK_TIME_SCALE parameter attempts to make the replay client shorten the think time between calls. C . The value 100 in the CONNECT_TIME_SCALE parameter attempts to connect all sessions as captured. D . The value 100 in the THINK_TIME_SCALE parameter attempts to match the captured user think time while replaying. E . The value 100 in the CONNECT_TIME_SCALE parameter attempts to connect all sessions immediately as soon as the replay begins.

A . Undo data becomes obsolete after 1，000 seconds. B . Undo data gets refreshed after 1，000 seconds. C . Undo data will be stored permanently after 1，000 seconds. D . Committed undo data would be retained for 1，000 seconds if free undo space is available. E . Undo data will be retained in the UNDOtablespacefor 1，000 seconds， then it gets movedmovedto the TEMPORARYtablespaceto provide read consistency.

A . The Advisory is on and will capture both CPU and memory overhead. B . The Advisory is on but the memory for the Advisory is not allocated. C . The Advisory is off and the memory for the Advisory is not allocated. D . The Advisory is off but the memory for the Advisory remains allocated.

A .  ASCII B .  ANSI C .  BINARY D .  MONOLINGUAL E .  MULTILINGUAL

A .  PLSQL_BLOCK B .  JAVA_STORED_PROCEDURE C .  STORED_PROCEDURE D .  EXECUTABLE E .  None of the above are invalid settings.

A .  DATE B .  TIMESTAMP C .  INTERVAL YEAR TO MONTH D .  INTERVAL DAY TO SECOND E .  TIMESTAMP WITH LOCAL TIME ZONE

A .  To indicate the location of the auxiliary-instance online redo logs. B .  To indicate the location of the target database datafiles. C .  To indicate the location of the auxiliary-instance control file and online redo logs. D .  To indicate the location of the auxiliary-instance database datafiles. E .  This is not a valid parameter when duplicating a database.

A . metacentric height B . height of the metacenter above the keel C . height of the center of buoyancy above the keel D . height of the center of gravity above the keel

A . PLSQL_BLOCK B . JAVA_STORED_PROCEDURE C . STORED_PROCEDURE D . EXECUTABLE E . None of the above are invalid settings.

A . The number of DBWR processes increases B . The number of ASMB processes increases C . The number of DBWR_TO_SLAVES increases D . The rebalancing operation in an ASM instance completes more quickly, but can result in higher I/O overhead

A . displays only the list of default values B . displays only the list of all basic parameters C . displays the currently in effect parameter values D . displays only the list of all advanced parameters E . displays the list of all the parameter files of a database

A . A B . B C . C D . D

A . ASCII B . ANSI C . BINARY D . MONOLINGUAL E . MULTILINGUAL

A . The MEMORY_MAX_TARGET parameter is automatically set to 500 MB B . The value of the MEMORY_MAX_TARGET parameter remains zero till it is changed manually C . The PGA_AGGREGATE_TARGET and SGA_TARGET parameters are automatically set to zero D . The lower bounds of PGA_AGGREGATE_TARGET and SGA_TARGET parameters are set to 90 MB and 270 MB, respectively

A . 1 day B . 5 days C . 7 days D . 31 day

A .  The database will not start. B .  The database will start but will not retain the undo data in the undo segment. C .  The database will start， and the undo segment will contain the undo data for at least one hour. D .  The database will start， and the undo segment will retain the undo data for at least 15 minutes.

A . 120M B . 320M C . 480M D . 600M

A . the alert log file B . the core dump files C . the change tracking file D . the user session trace files E . the database audit trail files F . the background process trace file

A . DATE B . TIMESTAMP C . INTERVAL YEAR TO MONTH D . INTERVAL DAY TO SECOND E . TIMESTAMP WITH LOCAL TIME ZONE

A．A.To set the initial value of the timer that inhibits handover after a change of channel B．B.To set the initial value of the timer that controls the measurement events of the mobile C．C.To set the initial value of the timer that controls if handover during signaling is allowed or not D．D.To set the initial value of the timer that controls if handover to another BSC is allowed or not E．E.To set the initial value of the timer that controls the filtering process

<img src='https://img2.soutiyun.com/shangxueba/ask/64233001-64236000/64234478/9691c5b47b07d813739fc0e9660c9439.jpg' /> A. The MEMORY_MAX_TARGET parameter is automatically set to 500 MB B. The value of the MEMORY_MAX_TARGET parameter remains zero till it is changed manually C. The PGA_AGGREGATE_TARGET and SGA_TARGET parameters are automatically set to zero D. The lower bounds of PGA_AGGREGATE_TARGET and SGA_TARGET parameters are set to 90 MB and 270 MB, respectively

<img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/7a3e04e05d324bd96ad245b89b3b2356.jpg' /> A. over-subscribed B. under-subscribed C. dedicated circuits D. nondedicated circuits