OCP 053 exam c 30-60

31.after you register a database from a recovery catalog ,what happeens to the backup metadata in the recovery catalog?

b.the backup metadata is maintained in the controlfile for a number of days specified by the initialization parameter control_file_record_keep_time and immeidately removed from the recvovery catalog

33.which two dynamic performance views can you use to identify files that need to vbe backed up.regardless of whether

you are in archivelog mode or noarchivelog mode?

d.v$datafile and v$controlfile

34.you want to create an archival backup for historical perpors .where can you store the archival backup?

a.to a disk location outside of the recovery area or a tape group

36.which of the following segment types can you shrink using oracle's segment shrink functionalty、

a.index segments

d.data segments

38.which of the following dml operations use a signficant portion of the pga?

a.hash joins

b.buffer for bulk load operations

d.bitrmap merges

e.bitmap create

只有full tables scans是不可以的

39.you are using rman to perform a fast switch to image copies for recovery puroposes .you need to perform a set 

newname coammand as part of the fast switch .what is the primary restriction when using set newname?>

a.the set newname is avialable only within a run block

44.which of the following can be a performance bottleneck in rman

a.reading data

b.writing data

c.cop[ying blocks

46.identify the statement that is true about flashback data archive.

a.you can use multiple tablespaces for an archive ,and each archive can have its own retentiuon time

47.how many copies of the alert log are stored in the directory speciofied by the initialization parameter diagnostic_dest?

e.one per incident directory

48.you lose all control file and your datafiles are intact ,but your online log files are unavailable .how do you recover the database in this situation?

d.restore a backup copy of the control file,perform incoplete recovery and open with resetlogs 

49.you need to determine the proper target for tspitr.what methods can you use to determinbe the correct target time?

a.flashback version query

c.flashback transation query

d.flshaback query

50.all datafiles and archive log files.the spfile is included if you add the spafile keyword,and tthe control files is included if you configuration includes automatic backup of the vconteol file'

52.you can use the em support workbench for which of the fololowing tasks?

b.m,anually run a health checj

c.close problems and incidents

d.generate addtional sql test case to help oracle support solve the problem

e.view problems and incidents

57.which of the following archived log file configurations is the most ideal configuration per oracle's recommendation?

d.use a flash recovery area morrored on an asm disk group only

59.remove the deleted backups

a.delete expired 

b.crosscheck

d.unacatolog