● 在操作系统设备管理中,通常临界资源不能采用 (26) 分配算法。
(26)
● 下面关于防火墙的说法,正确的是 (69) 。
(69)
● Internet上的DNS服务器中保存有 (70) 。
(70)
● It should go without saying that the focus of UML is modeling. However, what that means, exactly, can be an open-ended question. (71) is a means to capture ideas, relationships, decisions, and requirements in a well-defined notation that can be applied to many different domains. Modeling not only means different things to different people, but also it can use different pieces of UMLdepending on what you are trying to convey. In general, a UML model is made up of one or more (72) . A diagram graphically represents things, and the relationships between these things. These (73) can be representations of real-world objects, pure software constructs, or a description of the behavior. of some other objects. It is common for an individual thing to show up on multiple diagrams; each diagram represents a particular interest, or view, of the thing being modeled. UML 2.0 divides diagrams into two categories: structural diagrams and behavioral diagrams. (74) are used to capture the physical organization of the things in your system, i.e., how one object relates to another. (75) focus on the behavior of elements in a system. For example, you can use behavioral diagrams to capture requirements, operations, and internal state changes for elements.
(71)
● 下面关于网络系统设计原则的论述,正确的是 (67) 。
(67)
● 下面的选项中,属于本地回路地址的是 (68) 。
(68)
● ADSL是一种宽带接入技术,这种技术使用的传输介质是 (66) 。
(66)
● 设某算法的计算时间表示为递推关系式T(n)= T(n-1) + n (n>0) 及T(0)=1,则该算法的时间复杂度为 (65) 。
● 某一维数组中依次存放了数据元素 12,23,30,38,41,52,54,76,85,在用折半(二分)查找方法(向上取整)查找元素54时,所经历“比较”运算的数据元素依次为 (62) 。
(62)
● 具有n个顶点、e条边的图采用邻接表存储结构,进行深度优先遍历和广度优先遍历运算的时间复杂度均为 (63) 。
● 给定一组长度为n的无序序列,将其存储在一维数组a[0..n-1]中。现采用如下方法找出其中的最大元素和最小元素:比较 a[0]和 a[n-1],若 a[0]较大,则将二者的值进行交换;再比较a[1]和a[n-2],若a[1]较大,则交换二者的值;然后依次比较a[2]和a[n-3]、a[3]和 a[n-4]、…,使得每一对元素中的较小者被交换到低下标端。重复上述方法,在数组的前 n/2 个元素中查找最小元素,在后 n/2 个元素查找最大元素,从而得到整个序列的最小元素和最大元素。上述方法采用的算法设计策略是 (64) 。
(64)
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