单选题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 

题目
单选题
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 profile

B

 set the CPU time per session in the users profiles

C

 set the TIMED_STATISTICS parameter to TRUE in the parameter file

D

 set the CPU levels for the users’ group using Resource Manager

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相似问题和答案

第1题:

For 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 profile.
  • B、 Set the CPU time per session in the users profile.
  • C、 Set the CPU levels for the user’s group using Resource Manager.
  • D、 Set the TIMED_STATISTICS parameter to TRUE in the parameter file.

正确答案:C

第2题:

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

正确答案:C

第3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.A

B.B

C.C

D.D


参考答案:A

第4题:

Flashback Database is enabled in your Oracle 10g database. One of your database users erroneously purged an important table residing in his schema. The table was purged sometime between 10:00 P.M. and 10:30 P.M. The next day, you decide to flash back the database. Before you flash back the database, you want to ensure that you have all the necessary flashback data. Which dynamic performance view must you use to determine whether you have the required flashback data to recover the purged table?()

  • A、 V$DATABASE
  • B、 V$UNDOSTAT
  • C、 V$FLASHBACK_DATABASE_LOG
  • D、 V$FLASHBACK_DATABASE_STAT

正确答案:C

第5题:

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 profile
  • B、set the CPU time per session in the users profiles
  • C、set the CPU levels for the users’ group using Resource Manager
  • D、set the TIMED_STATISTICS parameter to TRUE in the parameter file

正确答案:C

第6题:

In one of your online transaction processing (OLTP) applications, users are manipulating and querying a database table simultaneously. From the Segment Advisor, you find that one of the tables is highly fragmented and you want to shrink the table immediately without affecting the currently active queries.  Which option would you use with the ALTER TABLE command to achieve this objective?()

  • A、REBUILD
  • B、CASCADE
  • C、TRUNCATE
  • D、ROW MOVEMENT
  • E、SHRINK SPACE COMPACT
  • F、SHRINK SPACE CASCADE

正确答案:E

第7题:

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_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

正确答案:C

第8题:

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 profile
  • B、set the CPU time per session in the users profiles
  • C、set the CPU levels for the users’ group using Resource Manager
  • D、set the TIMED_STATISTICS parameter to TRUE in the parameter file

正确答案:C

第9题:

You executed this command to create a password file: $ orapwd file = orapworcl entries = 10 ignorecase = N Which two statements are true about the password file?()

  • A、It will permit the use of uppercase passwords for database users who have been granted the SYSOPER role.
  • B、It contains username and passwords of database users who are members of the OSOPER operating system group.
  • C、It contains usernames and passwords of database users who are members of the OSDBA operating system group.
  • D、It will permit the use of lowercase passwords for database users who have granted the SYSDBA role.
  • E、It will not permit the use of mixed case passwords for the database users who have been granted the SYSDBA role.

正确答案:A,D

第10题:

You are a database administrator for your company. The company’s financial forecasting application uses a SQL Server 2005 database that enables business users to run both ad hoc and predefined queries. You suspect that some queries consume an excessive amount of server resources. You need to identify which queries consume the most resources. You want to achieve this goal as quickly as possible. What should you do?()

  • A、Use the DBCC INPUTBUFFER command.
  • B、Use the sys.dm_exec_query_stats dynamic management view (DMV).
  • C、Use the sqldiag utility.
  • D、Use the SHOWPLAN session option.

正确答案:B

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