The ST_INFO master table has millions of rows that are updated very rarely. It has a STATE_CODE column that contains the value for 25 states. The table is frequently queried on the STATE_CODE column. Which type of index would you suggest to improve the query performance？（） Btree。 bitmap。 reverse key。 function based。
下列关于电子签名的说法中不正确的是（）。 电子签名是以电子形式出现的数据。。 电子签名是附着于数据电文的。。 电子签名是用电子笔从屏幕输入的。。 电子签名可以是数据电文的一个组成部分，也可以是数据电文的连接，与数据电文具有某种逻辑关系、能够使数据电文与电子文件联系。。
生产过程的基本要求有（）。 连续性。 平行性。 比例性。 均衡性。 稳定性。
You are the administrator of a SQL Server 2005 computer named SQL1. You create a security template that disables unnecessary services. The template is appropriate only for SQL1. You need to ensure that the security template is applied to SQL1. Your solution must ensure that the template automatically overrides any manual configuration changes made by other administrators within an hour. What should you do？（） Use the SQL Server Surface Area Configuration tool to import the security template.。 Use the Local Security Policy editor to import the security template into the Local Security Policy object.。 Configure Task Scheduler to import the security template by using Secedit.exe. Configure the task to run every half hour.。 Configure Task Scheduler to run the Microsoft Baseline Security Analyzer tool every half hour.。
Evaluate the following command: SQL>ALTER SYSTEM SET db_securefile = 'IGNORE'; What is the impact of this setting on the usage of SecureFiles?（） It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB。 It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB。 It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB。 It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile。
通过改变流道面积的大小来控制流体流量压力和流向的机械产品是（）
