● 将数据库对象的操作权限授予用户,属于安全控制机制中的 (50) 。
(50)
● HTML中
(69)
● For nearly ten years, the Unified Modeling Language (UML) has been the industry standard for visualizing, specifying, constructing, and documenting the (71) of a software-intensive system. As the (72) standard modeling language, the UML facilitates communication and reduces confusion among project (73) . The recent standardization of UML 2.0 has further extended the language's scope and viability. Its inherent expressiveness allows users to (74) everything from enterprise information systems and distributed Web-based applications to real-time embedded systems. The UML is not limited to modeling software. In fact, it is expressive enough to model (75) systems, such as workflow in the legal system, the structure and behavior. of a patient healthcare system, software engineering in aircraft combat systems, and the design of hardware. To understand the UML, you need to form. a conceptual model of the language, and this requires learning three major elements: the UML's basic building blocks, the rules that dictate how those building blocks may be put together, and some common mechanisms that apply throughout the UML.
(71)
● 一个 B 类网络的子网掩码为 255.255.224.0,则这个网络被划分成了 (66) 个子网。
(66)
● HTML元素中, (68) 属性用于定义超链接被鼠标点击后所显示的颜色。
(68)
● 在Windows系统中设置默认路由的作用是 (67) 。
(67)
● 数据仓库在收集数据过程中, 会遇到一些略微不一致但可以纠正的数据, 纠正的过程称为 (65) 。
(65)
● 根据分布式数据库系统中的两阶段提交协议(2PC),有如下操作指令:
① 协调器向参与者发prepare消息;
② 参与者向协调器发回ready消息;
③ 参与者向协调器发回abort消息;
④ 协调器向参与者发commit消息;
⑤ 协调器向参与者发rollback消息; 满足2PC 的序列是 (64) 。
(64)
● 在分布式数据库系统中,应用程序直接使用本结点数据的性质称为 (63) 。
(63)
● 要实现记录的物理顺序与索引项次序一致,应选择的索引类型是 (61) 。
(61)
● 在C/S 体系结构中,客户端执行的操作是 (55) 。
(55)
高级经济师考试试题精选练习(1)
高级经济师考试模拟练习题之单选题(1
高级经济师考试试题精选练习(2)
高级经济师考试试题精选练习(3)
高级经济师考试试题:经济法案例试题精
高级经济师考试模拟试题及答案
高级经济师考试试题及答案:单选练习题
高级经济师考试试题:经济法案例试题精
高级经济师考试模拟题及答案练习(1)
高级经济师考试模拟题及答案练习(2)