[单选] You need to define an authentication system for the main office database administrators. The setup should require the minimum amount of administrative effort. The authentication environment must fulfill the company’s security requirements.What should you do？（）

A . Create a SQL Server login with Windows Authentication for each main office database administrator.Add all of these logins to the db_owner role in each database.
B . Create a SQL Server login with SQL Server Authentication for each main office database administrator.Add all of these logins to the sysadmin role.
C . Create a Windows global group named DBAdmins. Add each main office database administrator’s Windows user account to the Windows DBAdmins group.Create a SQL Server login with Windows Authentication for the group.Add the group to the serveradmin fixed server role.
D . Add each main office database administrator’s Windows user account to the Windows SQLManagersgroup.

103型分配阀放风阀弹簧自由高为（）。 35.5～34mm。 42.5～363mm。 52.5～48.3mm。 50.5～46.5mm。 View the Exhibit to examine the output of the DBA_OUTSTANDING_ALERTS view. After 30 minutes, youexecuted the following command: SQL> SELECT reason,metric_value FROM dba_outstanding_alerts; REASON METRIC_VALUE------------------------------ ---------------------- Tablespace [TEST] is [28 perce 28.125 nt] fullWhat could be the reason for the elimination of the other rows in the output（） An Automatic Workload Repository snapshot has been taken recently.。 The non-threshold-based alerts are transferred to DBA_ALERT_HISTORY.。 The threshold alerts conditions are cleared and the alerts are transferred to DBA_ALERT_HISTORY.。 The threshold alerts related to database metrics are permanently stored in DBA_ALERT_HISTORY but notthe threshold alerts related to instance metric。大二男生王某，经常会想一些没有意义的问题，比如，一个定理为什么这样理解，而不那样理解，明明知道那样理解是与事实不符合，也知道书上说的是对的，但老是想„„这种情况严重影响正常生活，为此他感到非常苦恼。对待该生出现的症状，你认为可以采取的措施是（）。放松疗法。采取顺其自然的方法。思维阻断法。多参加集体活动。 Your company uses SQL Server 2005. Users report that report execution is slow. You investigate and discover that some queries do not use optimal execution plans. You also notice that some optimizer statistics are missing and others are out of date. You need to correct the problem so that reports execute more quickly. Which two Transact-SQL statements should you use?（） DBCC CHECKTABLE 。 ALTER INDEX REORGANIZE 。 UPDATE STATISTICS 。 CREATE STATISTICS 。 DBCC SHOW_STATISTICS 。 DBCC UPDATEUSAGE。试阐述工业布局理论的主要观点。 You need to define an authentication system for the main office database administrators. The setup should require the minimum amount of administrative effort. The authentication environment must fulfill the company’s security requirements.What should you do？（）

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[单选] You need to define an authentication system for the main office database administrators. The setup should require the minimum amount of administrative effort. The authentication environment must fulfill the company’s security requirements.What should you do？（）

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