Your system has been upgraded from Oracle Database 10g to Or

题目
单选题
Your system has been upgraded from Oracle Database 10g to Oracle Database 11g. You imported SQL Tuning Sets (STS) from the previous version. After changing the  OPTIMIZER_FEATURE_ENABLE parameter to 10.2.0.4 and running the SQL Performance Analyzer, you observed performance regression for a few SQL statements.  What would you do with these SQL statements?()
A

 Set OPTIMIZER_USE_PLAN_BASELINES to FALSE to prevent the use of regressed plans.

B

 Capture the plans from the previous version using STS and then load them into the stored outline.

C

 Capture the plans from the previous version using STS and then load them into SQL Management Base (SMB)

D

 Set OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES to FALSE to prevent the plans from being loaded to the SQL plan baseline.

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相似问题和答案

第1题:

Identify three scenarios in which you would recommend the use of SQL Performance Analyzer to analyzeimpact on the performance of SQL statements.()

A. Change in the Oracle Database version

B. Change in your network infrastructure

C. Change in the hardware configuration of the database server

D. Migration of database storage from non-ASM to ASM storage

E. Database and operating system upgrade


参考答案:A, C, E

第2题:

Your PROD database has been started using the server parameter file. In your PROD database you are using RMAN for backup and recovery operations. You issue the following commands from the RMAN prompt:     RMAN> CONFIGURE CONTROLFILE AUTOBACKUP OFF;   RMAN> BACKUP DATABASE;   Which files from the database will be backed up as a result of this BACKUP command?()

  • A、 control file
  • B、 all datafiles
  • C、 password file
  • D、 online redo log file
  • E、 archive redo log file
  • F、 server parameter file
  • G、 only the SYSTEM datafile

正确答案:A,B,F

第3题:

In your database, the LDAP_DIRECTORY_SYSAUTH initialization parameter has been set to YES and the users who need to access the database as DBAs have been granted SYSDBA enterprise role in Oracle Internet Directory (OID). SSL and the password file have been configured. A user SCOTT with the SYSDBA privilege tries to connect to the database instance from a remote machine using the command:Which authentication method would be used first?()

A. authentication by password file

B. authentication by using certificates over SSL

C. authentication by using the Oracle Internet Directory

D. authentication by using the local OS of the database server


参考答案:A

第4题:

In your production database you want to use an Automatic Storage Management (ASM) instance to manage the database files. Which option would you use to migrate the database files from a non-ASM instance to an ASM instance?()

  • A、Oracle Migration Assistant
  • B、Recovery Manager (RMAN)
  • C、Oracle Data Pump Export and Import
  • D、conventional Oracle Export and Import
  • E、operating system utilities to copy the files to the ASM instance

正确答案:B

第5题:

You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement:       SQL>ALTER DATABASE OPEN RESETLOGS;   Which of the following options is true about using the RESETLOGS option?()

  • A、 The log sequence is reset to 0.
  • B、 All the online redo logs are deleted.
  • C、 All the archived redo logs from a previous incarnation become useless.
  • D、 The full database backup taken from a previous incarnation can be used in future.
  • E、 Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.

正确答案:D

第6题:

You executed the following command in Recovery Manager (RMAN) against your Oracle 10g database:RMAN> REPORT NEED BACKUP days 3;What would be the output of this command?()

  • A、 a list of files that require a backup within three days
  • B、 a list of files that have not been backed up for three days
  • C、 a list of files that RMAN recommends be backed up only once in every three days, based on low volatility
  • D、 a list of files for which a backup has already been performed and may need a backup after three days

正确答案:B

第7题:

You are maintaining your database in Oracle10g. You find that the number of languages that should be supported in your database has increased. The character set of your database is UTF8. You decide to migrate your database to the AL16UTF16 national character set.   How will you migrate your database from UTF8 to AL16UTF16?()  

  • A、 by using the RMAN utility
  • B、 by using the export/import utility
  • C、 by using the ALTER DATABASE command
  • D、 by enabling the change tracking feature

正确答案:C

第8题:

You installed Oracle Database 11g and are performing a manual upgrade of the Oracle9i database. As a part of the upgrade process, you execute the following script:SQL>@utlu111i.sqlWhich statement about the execution of this script is true?()

A. It must be executed from the Oracle Database 11g environment.

B. It must be executed only after the SYSAUX tablespace has been created.

C. It must be executed from the environment of the database that is being upgraded.

D. It must be executed only after AUTOEXTEND is set to ON for all existing tablespaces.

E. It must be executed from both the Oracle Database 11g and Oracle Database 9i environments.


参考答案:C

第9题:

You want to administer your PROD database from a remote host machine using a Web-enabled interface. Which Oracle tool would you use to accomplish this task efficiently without using command-line interfaces?()

  • A、SQL*Plus
  • B、iSQL*Plus
  • C、Management Server
  • D、Management Repository
  • E、Oracle Enterprise Manager 10g Database Control

正确答案:E

第10题:

You have been recently hired as a database administrator. Your senior manager asks you to study the production database server and submit a report on the settings done by the previous DBA.  While observing the server settings, you find that the following parameter has been set in the parameter file of the database:  REMOTE_OS_AUTHENT = TRUE  What could have been the reason to set this parameter as TRUE?()

  • A、to enable operating system authentication for a remote client
  • B、to restrict the scope of administration to identical operating systems
  • C、to allow the start up and shut down of the database from a remote client
  • D、to enable the administration of the operating system from a remote client
  • E、to disable the administration of the operating system from a remote client

正确答案:A

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