Which two scenarios are NOT safe to replace a StringBuffer object with a StringBuilder object？（）

A . Event Viewer gives more details on the failure. B . The alert log file gives detailed information about the failure. C . PMON rolls back the transaction and releases the locks. D . SMON rolls back the transaction and releases the locks. E . The transaction is rolled back by the next session that refers to any of the blocks updates by the failed transaction. F . Data modified by the transaction up to the last commit before the abnormal termination is retained in the database.

A . The database must have multiplexed redo logs for the flashback to succeed. B . The database must be MOUNTED for the flashback to succeed. C . The database must use block change tracking for the flashback to succeed. D . The database must be opened in restricted mode for the flashback to succeed. E . The database must be opened with the RESETLOGS option after the flashback is complete. F . The database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.

A . Mismatched EtherChannel protocol B . Mismatched EtherChannel port selection C . Mismatched EtherChannel distribution algorithm D . Mismatched trunk mode E . Mismatched native VLAN F . Mismatched link speed

A . The WORK_AREASIZE_POLICY initialization parameter cannot be set to AUTO. B . The Oracle database automatically controls the amount of PGA memory allotted to SQL work areas. C . Setting the value of the SGA_TARGET initialization parameter to 0 will disable the automatic PGA  memory management. D . The SORT_AREA_SIZE parameter is ignored by all the sessions running in the automatic PGA  memory management mode.

A .  The WORK_AREASIZE_POLICY initialization parameter cannot be set to AUTO. B .  The Oracle database automatically controls the amount of PGA memory allotted to SQL work areas. C .  Setting the value of the SGA_TARGET initialization parameter to 0 will disable the automatic PGA memory management. D .  The SORT_AREA_SIZE parameter is ignored by all the sessions running in the automatic PGA memory management mode.

A .  You must ensure that the SALES database is mounted or open. B .  You must restore a backup control file to perform a block media recovery. C .  You must take the tools01.dbf data file offline before you start a block media recovery. D .  You must put the database in NOARCHIVELOG mode to perform a block media recovery. E .  You can perform only a complete media recovery of individual blocks， point-in-time recovery of individual data blocks is not supported.

A . IPCC Express communicating with the ICM via a standalone IPCC Gateway PG running on an expansion server   B . IPCC Express communicating with the ICM via a co-resident IPCC Gateway PG C . IPCC Express using the IPCC Enterprise Outbound option   D . IPCC Express using the IPCC Enterprise CTI-OS Toolkit   E . IP IVR integrating with IPCC Enterprise to function as queue point and self-service platform

A . To store the backup information of multiple database B . To restrict the amount of space that is used by the backups C . To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter. D . To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.

A . <title>${titleStr}</title> B . <title>${initParam.titleStr}</title> C . <title>${params[0].titleStr}</title> D . <title>${paramValues.titleStr}</title> E . <title>${initParam[’titleStr’]}</title&gt

A .  A maximum of 3 GB can be allocated to shared pool B .  The value for SGA_TARGET can be increased up to a maximum of 15 GB C .  A total of 14 GB memory will be allocated to the automatically tuned memory components. D .  Increasing the value for SGA_TARGET will automatically increase the memory allocated for STREAMS_POOL_SIZE E .  Increasing the value for SGA_TARGET to 12 GB will automatically increase the memory allocated to autotuned parameters F .  Reducing the value for SGA_TARGET to 9 GB will automatically decrease the memory allocated to shared pool from 3 GB to 2 GB

A . High Availability CRS Engines running on hardware from different server classes  B . High Availability CRS Engines running on similar hardware from the same server class but from different vendors  C . High Availability CRS Engines and database and a simplex Recording Server  D . High Availability CRS Engines and four simplex VoIP Monitoring Servers  E . CCM co-resident deployment on an MCS 7815

A .  All URLs returned by the server are rewritten. B .  An HttpSession object is created if necessary. C .  The user name and password of the user are checked. D .  The session ID is stored in the HTTP response as a cookie.

A . Domains can be created using the Configuration Wizard. B . Domains can be created using WLST.   C . Domain configuration files are located in the WebLogic home directory. D . Domains can be created based on a domain template.

A . To store the backup information of multiple database B . To restrict the amount of space that is used by the backups C . To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter. D . To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.

A .  when the schema of the user， SCOTT， was deleted by mistake 15 minutes ago B .  when the table EMP of the SCOTT schema was dropped by mistake 15 minutes ago C .  when some rows of the table， EMP， in the SCOTT schema were deleted by mistake 15 minutes ago D .  when some incorrect values were inserted in the EMP table in the user Scott’s schema during the last 15 minutes E .  never， because FLASHBACK TABLE is not a valid command in Oracle 10g.

A . When using versions of Java technology earlier than 5.0. B . When sharing a StringBuffer among multiple threads. C . When using the java.io class StringBufferInputStream. D . When you plan to reuse the StringBuffer to build more than one string.

A .  Java.util.Map B .  Java.util.Set C .  Java.util.List D .  Java.util.StoredSet E .  Java.util.StoredMap F .  Java.util.Collectio

A . You must shut down the database instance to perform the backups. B . You must configure the Flash Recovery Area （FRA） for the database. C . You can perform complete database backups without closing the database. D . All the previous closed database backups including control files become invalid after you configure thedatabase to ARCHIVELOG mode.

A .  Java.util.Map B .  Java.util.Set C .  Java.util.List D .  Java.util.StoredSet E .  Java.util.StoredMap F .  Java.util.Collectio

A . You must ensure that the SALES database is mounted or open. B . You must restore a backup control file to perform a block media recovery. C . You must take the tools01.dbf data file offline before you start a block media recovery. D . You must put the database in NOARCHIVELOG mode to perform a block media recovery. E . You can perform only a complete media recovery of individual blocks； point-in-time recovery of  individual data blocks is not supported.

A . The optimizer adds the new plan to the plan history. B . The optimizer selects the new plan for the execution of the SQL statement. C . The optimizer adds the new plan to the SQL plan baseline as an accepted plan. D . The optimizer adds the new plan to the SQL plan baseline but not in the ENABLED state. E . The optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with the lowest cost.

A .  A total of 14 GB memory will be allocated to the automatically tuned memory components B .  Reducing the value for SGA_TARGET to 9 GB will automatically decrease the memory allocated to shared pool from 3 GB to 2 GB C .  The value for SGA_TARGET can be increased up to a maximum of 14 GB D .  A maximum of 3 GB can be allocated to shared pool E .  Increasing the value for SGA_TARGET to 12 GB will automatically increase the memory allocated to autotuned parameters F .  Increasing the value for SGA_TARGET will automatically increase the memory allocated for  STREAMS_POOL_SIZE

A . You must shut down the database instance to perform the backups. B . You must configure the Flash Recovery Area （FRA） for the database. C . You can perform complete database backups without closing the database. D . All the previous closed database backups including control files become invalid after you configure thedatabase to ARCHIVELOG mode.