From the V$SESSION_LONGOPS view, you find that some of the database users have long-running queries and are consuming a lot of CPU time. This causes problems for you when you try to log on as the system user and perform small maintenance tasks. You would like to ensure that users SYS and SYSTEM get priority over all other users. Which method would you use to achieve this objective?()A、create a plan directive in the SYS_GROUPB、create the pending area for the consumer groupC、activate the provided SYSTEM_PLAN in Resource ManagerD、set the TIMED_STATISTICS parameter to TRUE in the parameter fileE、set the execution time limit for all users, except SYS and SYSTEM, in their profiles
From the V$SESSION_LONGOPS view, you find that some of the database users have long-running queries and are consuming a lot of CPU time. This causes problems for you when you try to log on as the system user and perform small maintenance tasks. You would like to ensure that users SYS and SYSTEM get priority over all other users. Which method would you use to achieve this objective?()
- A、create a plan directive in the SYS_GROUP
- B、create the pending area for the consumer group
- C、activate the provided SYSTEM_PLAN in Resource Manager
- D、set the TIMED_STATISTICS parameter to TRUE in the parameter file
- E、set the execution time limit for all users, except SYS and SYSTEM, in their profiles
相关考题:
You are having problems with connections from a specific host (192.168.1.15) not closing down correctly.You want to find the state of the threads from that host check for long-running queries. Which statement will accomplish this?()A.AB.BC.CD.D
From the V$SESSION_LONGOPS view, you find that some of the database users have long/x7frunning queries that consume a lot of CPU time. This causes performance problems for other users in the database, who have much shorter queries. You would like to make sure that the users with large queries do not use all the CPU time, but you still do not want to terminate them with an error message. Which method would you follow to achieve this?()A、set the CPU time per call in the users profileB、set the CPU time per session in the users profilesC、set the CPU levels for the users’ group using Resource ManagerD、set the TIMED_STATISTICS parameter to TRUE in the parameter file
Redo log files are multiplexed in your database. The disk in which you have one of the redo log members is highly fragmented. In the process of defragmentation you lose the redo log member, which is not a member of the current group. How would you recover from the loss of the redo log member?()A、SMON would automatically restore the lost file.B、You would need to restore the whole database from the last backup.C、You would need to restore the file from the last full database backup.D、You would need to use flashback technology to restore the lost redo log member.E、You would need to use Recovery Manager (RMAN) to restore the lost redo log member.F、You would need to restore the missing log file by copying one of the remaining files from the same group.
In which scenario do you use the Flashback Database feature?()A、 when a table is dropped and you restore it from the Recycle BinB、 when a user’s schema is dropped and you recover the user’s schemaC、 when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestampD、 when a row of a table is updated frequently and committed, and you view all the versions of the row within a specific duration
Because of a logical corruption in your production database, you wanted to perform Tablespace Point in Time Recovery (TSPITR). But before you start the recovery, you queried the TS_PITR_OBJECTS_TO_BE_DROPPED view and realized that there are a large number of objects that would be dropped when you start the recovery by using this method. You want to preserve these objects. Which option must you use to perform TSPITR and preserve the object?()A、Perform Export before TSPITR and Import after TSPITRB、Move objects to another schema that has the same tablespace assignedC、Perform Incomplete Recovery before TSPITR with the Log Sequence Number (LSN)D、Perform Incomplete Recovery before TSPITR with the System Change Number (SCN)
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When you try to open your database, you receive the following error: ORA-00205: error in identifying control file Where would you find the details required to resolve this error?()A、audit trailB、alert log fileC、user trace fileD、online trace fileE、background trace fileF、operating system event viewer
You work as a database administrator for Supportcenter.cn. In a production environment, users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response?()A、The trace fileB、The fixed viewsC、The data dictionary viewsD、The operating system log fieldsE、The dynamic performance views.
You work as a database administrator for Supportcenter.cn. You received the following error while working on your database: ORA-01555: snapshot too old ,In which situation would you receive such an error?()A、You performed rollback after commit.B、If a log switch occurs in your database.C、Thearchiverfails to generate an archived log file.D、Instance recovery fails to find one of the redo log files.E、A long-running query is unable to get read-consistent image.F、If you perform manual undo management operations in auto mode.
An important tablespace of your database is dropped by mistake. You use the Flashback Database feature to retrieve the tablespace. You perform the following steps to retrieve the tablespace: 1. You log on to Enterprise Manager as SYSDBA. 2. You select the maintenance screen. 3. You choose Perform Recovery option on the maintenance screen. 4. You choose Whole Database in the Object Type drop-down list Perform Recovery: Type screen. 5. You choose Recover to Current Time from the Operation Type on the Perform Recovery: Type screen. 6. You provide the Host Credentials for a database user. on the Perform Recovery: Type screen. 7. You click the continue button. An information screen appears saying that the database is unavailable. What is this information screen?()A、Recovery ManagerB、Recovery WindowC、Recovery WizardD、Enterprise Manager Home Page
A user complains that he gets the following error message repeatedly after executing some SQL statements.The error message forces the user to log off from and log onto the database to continue his work. ORA-02392:exceeded session limit on CPU usage,you are being logged off Which action would you take to increase the session limit on CPU usage?()A、Modify the profile assigned to the user.B、Modify the roles assigned to the users.C、Modify the object privileges assigned to the user.D、Modify the system privileges assigned to the users.E、Modify the value for the RESOURCE_LIMIT parameter in the parameter file.
From the V$SESSION_LONGOPS view, you find that some of the database users have long/x7frunning queries and are consuming a lot of CPU time. This causes problems for you when you try to log on as the system user and perform small maintenance tasks. You would like to ensure that users SYS and SYSTEM get priority over all other users. Which method would you use to achieve this objective?()A、create a plan directive in the SYS_GROUPB、create the pending area for the consumer groupC、activate the provided SYSTEM_PLAN in Resource ManagerD、set the TIMED_STATISTICS parameter to TRUE in the parameter fileE、set the execution time limit for all users, except SYS and SYSTEM, in their profiles
Your database is functioning in ARCHIVELOG mode. In which two situations would you perform a cancel/x7fbased recovery?()A、You find that one of the redo log members in each redo log group is lost.B、You find that a data file that belongs to the USERS tablespace is damaged.C、You find that a data file that belongs to the SYSTEM tablespace is damaged.D、You find that the current redo log group is damaged and is not available for recovery.E、You realized while performing a recovery that an archived redo log file needed for recovery is lost.
You executed the following query in your database: FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output?()A、the time when the last flashback operation in your database was performedB、the time when the first flashback operation in your database was performedC、a list of flashback operations performed in your database using SCN and timeD、the approximate time and the lowest system change number (SCN) to which you can flash back your database
You are required to flashback your database. You want to find the amount of flashback data generated since the database was opened. Which task will you perform to obtain the required information?()A、 Query the V$FLASHBACK_DATABASE_LOG view.B、 Query the V$FLASHBACK_DATABASE_STAT view.C、 Check the value of the DB_FLASHBACK_RETENTION_TARGET initialization parameter.D、 Query the V$RECOVERY_FILE_DEST view.
From the V$SESSION_LONGOPS view, you find that some of the database users have long-running queries that consume a lot of CPU time. This causes performance problems for other users in the database, who have much shorter queries. You would like to make sure that the users with large queries do not use all the CPU time, but you still do not want to terminate them with an error message. Which method would you follow to achieve this?()A、set the CPU time per call in the users profileB、set the CPU time per session in the users profilesC、set the CPU levels for the users’ group using Resource ManagerD、set the TIMED_STATISTICS parameter to TRUE in the parameter file
You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions, monitoring the database server, and design deployment. In the company, you major job is the deployment, maintenance and support of Microsoft SQL Server 2005. You work as a database administrator for your company. The users report the slow performance of a SQL Server 2005 application. You are required to identify the queries which perform slowly because of blocking. Which action should you perform?()A、In a SQL Trace log file, you should look for queries with low duration values and high read and write values.B、In a query execution plan, you should look for queries with missing or out-of-date statistics.C、In a SQL Trace log file, you should look for queries with high duration values and low read and write values.D、In a query execution plan, you should look for queries with a large number of table scans.
You create 200 new user accounts. The users are located in six different sites. New users report that they receive the following error message when they try to log on: "The username or password is incorrect." You confirm that the user accounts exist and are enabled. You also confirm that the user name and password information supplied are correct. You need to identify the cause of the failure. You also need to ensure that the new users are able to log on Which utility should you run()A、RsdiagB、RstoolsC、RepadminD、Active Directory Domains and Trusts
单选题In which scenario do you use the Flashback Database feature?()A when a table is dropped and you restore it from the Recycle BinB when a user’s schema is dropped and you recover the user’s schemaC when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestampD when a row of a table is updated frequently and committed, and you view all the versions of the row within a specific duration
单选题A user complains that he gets the following error message repeatedly after executing some SQL statements. The error message forces the user to log off from and log on to the database to continue his work. ORA-02392: exceeded session limit on CPU usage, you are being logged off Which action would you take to increase the session limit on CPU usage?()AModify the profile assigned to the user.BModify the roles assigned to the users.CModify the object privileges assigned to the user.DModify the system privileges assigned to the users.EModify the value for the RESOURCE_LIMIT parameter in the parameter file.
单选题When you try to open your database, you receive the following error: ORA-00205: error in identifying controlfile Where would you find the details required to resolve this error?()Aaudit trailBalert log fileCuser trace fileDonline trace fileEbackground trace fileFoperating system event viewer
单选题You executed the following query in your database: FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output?()Athe time when the last flashback operation in your database was performedBthe time when the first flashback operation in your database was performedCa list of flashback operations performed in your database using SCN and timeDthe approximate time and the lowest system change number (SCN) to which you can flash back your database
单选题Because of a logical corruption in your production database, you wanted to perform Tablespace Point in Time Recovery (TSPITR). But before you start the recovery,you queried the TS_PITR_OBJECTS_TO_BE_DROPPED view and realized that there are a large number of objects that would be dropped when you start the recovery by using this method. You want to preserve these objects. Which option must you use to perform TSPITR and preserve the object?()A Perform Export before TSPITR and Import after TSPITRB Move objects to another schema that has the same tablespace assignedC Perform Incomplete Recovery before TSPITR with the Log Sequence Number (LSN)D Perform Incomplete Recovery before TSPITR with the System Change Number (SCN)
单选题You work as a database administrator for Supportcenter.cn. In a production environment, users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response?()AThe trace fileBThe fixed viewsCThe data dictionary viewsDThe operating system log fieldsEThe dynamic performance views.
单选题You are required to flashback your database. You want to find the amount of flashback data generated since the database was opened. Which task will you perform to obtain the required information?()A Query the V$FLASHBACK_DATABASE_LOG view.B Query the V$FLASHBACK_DATABASE_STAT view.C Check the value of the DB_FLASHBACK_RETENTION_TARGET initialization parameter.D Query the V$RECOVERY_FILE_DEST view.