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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. More than a month ago, the SQL 2005 Server computer is deployed in operation. There are some query performance problems last week. Therefore, you perform an investigation on the locking contention. From the sys.dm_os_wait_stats dynamic management view (DMV), you can see a high value in the max_wait_time_ms column. You want to check out whether this value is a factor which leads to the current performance problems. In addition, the impact on database users should e cut to the least. 
Which action should be performed to achieve the goal?()

A . To achieve the goal, the UPDATE STATISTICS command should be excuted.
B . To achieve the goal, the SQL Server Service should be restarted.
C . To achieve the goal, the SQL Server computer should be restarted.
D . To achieve the goal, the statistics in the dynamic management view (DMV) should be reset.

在微生物发酵过程中,为了更好降低发酵液的pH,可采取的“治本”的方法是() 加糖并提高通气量。 加酸并提高通气量。 加糖并降低通气量。 加酸并降低通气量。 Youre performing tablespace point-in-time recovery on a tablespace called USERS. If an object in that tablespace has a foreign key constraint owned by another object in the INDEX_TBS  which statement is true?()    You cannot perform the TSPITR with the constraints enabled.。  You must perform the TSPITR recovery of both tablespaces for it to be successful.。  You can perform TSPITR only on the USERS tablespace.。  RMAN will determine if the INDEX_TBS tablespace must also be duplicated and will duplicate it automatically.。  The TSPITR will only be successful if the constraint is enabled.。 社会实践的基本要求是() 加强个人活动。 因地制宜与因材施教。 重视综合效益。 加强领导与保障安全。 明确的目的性与周密的计划性。 任何单位和个人在与金融机构建立业务关系或者要求金融机构为其提供一次性金融服务时,都应当提供真实有效的身份证件或者其他身份文件。 设备修理,拆卸时一般应()。 先内后外。 先上后下。 先内后上。 先内后下。

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. More than a month ago, the SQL 2005 Server computer is deployed in operation. There are some query performance problems last week. Therefore, you perform an investigation on the locking contention. From the sys.dm_os_wait_stats dynamic management view (DMV), you can see a high value in the max_wait_time_ms column. You want to check out whether this value is a factor which leads to the current performance problems. In addition, the impact on database users should e cut to the least. 
Which action should be performed to achieve the goal?()

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