在非常情况下，监理机构可以先通过电话或口头传递工程文件内容要点，并在随后的（）内补传书面正式文件。 A.4小时 。 B.8小时 。 C.24小时 。 D.72小时。
Which statement about Automatic Memory Management with Oracle 11g is true?（） You cannot specify MEMORY_TARGET if you explicitly specify SGA_TARGET or PGA_AGGREGATE_TARGET values that are greater than zero in your parameter file.。 Oracle can reallocate memory between the SGA and PGA automatically as needed.。 To use Automatic Memory Management, you must explicitly set both the MEMORY_TARGET and MEMORY_MAX_TARGET parameters in your parameter file.。 You can set the MEMORY_TARGET parameter to a maximum value of the current SGA size plus the current PGA size.。
Upon starting your database, you receive the following error: You can choose from the following steps: 1.Restore the database datafiles. 2.Issue the alter database clear unarchived logfile group 1 command. 3.Issue the alter database open command. 4.Issue the alter database open resetlogs command. 5.Recover the database using point-in-time recovery. 6.Issue the Startup Mount command to mount the database. 7.Back up the database. Which is the correct order of these steps in this case?（） 1,6,5,4,7。 6,5,4。 6,2,3,7。 1,6,3。 The database cannot be recovered。
Which two statements about the background process of the database writer are true（） It is possible to have multiple database writers in an Oracle instance.。 It writes dirty buffers， if any， to data files whenever a checkpoint occurs.。 It writes dirty buffers， if any， to data files whenever a transaction commits.。 It writes dirty buffers， if any， to data files before the log writer （LGWR） write。
By using the transaction identifier provided by （） for a particular row change， you can use theFlashback Transaction Query to see the operation performed by the transaction. Flashback Table。 Flashback Database。 Flashback Versions Query。 the RMAN REPORT command。 the DBA_PENDING_TRANSACTIONS view。
监理机构对工程变更的通知、要求或建议的审查，应遵循的原则包括（）。
