未知题型 You are the administrator of two Microsoft Windows 2000 computers. One computer is running Internet Information Services (IIS), and the other is running SQL Server 2000. Company partners need to connect by means of the Internet and query data stored on the SQL Server computer. Some of these partners have computers that do not use Microsoft operating systems or Web browsers.You need to configure the IIS and SQL Server 2000 computers to allow access to data by means of the IIS virtual directory. IIS uses Basic Authentication to allow access to the virtual directory.Only company partners should have access to the SQL Server computer by means of the Internet. The partners should not be allowed to make ad hoc queries. You want to be able to audit successful and failed logins to the SQL Server computer.You want to allow the partners access to the SQL Server computer while keeping your security scheme as simple as possible. Which two actions should you take? (Each correct answer represents part of the solution. Choose two.)

单项选择题 下列选项中，用于定义执行动画效果之前延迟时间的属性是（）。

未知题型 UML(统一建模语言)支持的建模方式中不包括(53)，UML中不包括的事件有(54)。其中表示对象相互行为的模型是(55)模型。