特定领域软件架构(DSSA)是在一个特定应用领域为一组应用提供组织结构参考的标准软件架构。实施DSSA的过程中包括一系列基本的活动,其中 (53) 活动的主要目的是为了获得DSSA。该活动参加人员中, (54) 的主要任务是提供关于领域中系统的需求规约和实现的知识。 (53)处填()。
A. 领域需求
B. 领域分析
C. 领域设计
D. 领域实现
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802.11标准定义了3种物理层通信技术,这3种技术不包括()
A. 直接序列扩频
B. 跳频扩频
C. 窄带微波
D. 漫反射红外线
试题六阅读下列函数说明和C函数,将应填入___(n)___处的语句写在答题纸的对应栏内。[函数6说明]函数DelA_InsB(LinkedList La,LinkedList Lb,int key1,int key2,int len)的功能是:将线性表A中关键码为key1的结点开始的len个结点,按原顺序移至线性表B中关键码为key2的结点之前,若移动成功,则返回0;否则返回-1。线性表的存储结构为带头结点的单链表,La为表A的头指针,Lb为表B的头指针。单链表结点的类型定义为:typedef struct nodeint key;struct node * next;* LinkedList;[函数6]int DelA InsB(LinkedList La,LinkedList Lb,int key1,int key2,int len)LinkedListp,q,s,prep,pres;int k;if(! La->next‖! Lb->next‖->next‖len<=0)return-1;p=La->next;prep=La;while(p&&p->key!=key1) / * 查找表A中键值为key1的结点 * /prep=p;p=p->next;if(! p)return -1; / * 表A中不存在键值为key1的结点 * /q=p;k=1;while(q&& (1) ) / * 在表A中找出待删除的len个结点 * /(2) ;k++;if(! q)return-1: / * 表A中不存在要被删除的len个结点 * /s=Lb->next; (3) ;while(s s && s->key!=key2) / * 查找表B中键值为key2的结点 * /pres=s;s=s->next;if(! s)return-1; / * 表B中不存在键值为key2的结点 * /(4) =q->next; / * 将表A中的len个结点删除 * /q->next= (5) ;pres->next=p; / * 将len个结点移至表B * /return 0;
软件开发环境是支持软件产品开发的软件系统,它由软件工具集和环境集成机制构成。环境集成机制包括:提供统一的数据模式和数据接口规范的数据集成机制;支持各开发活动之间通信、切换、调度和协同的 (29) ;为统一操作方式提供支持的 (30) 。 (29)处填()。
A. 操作集成机制
B. 控制集成机制
C. 平台集成机制
D. 界面集成机制
WLANs are increasingly popular because they enable cost-effective connections among people, applications and data that were not possible, or not cost-effective, in the past. For example, WLAN-based applications can enable fine-grained management of supply and distribution (1) to improve their efficiency and reduce (2) . WLANs can also enable entirely new business processes. To cite but one example, hospitals are using WLAN-enabled point-of-care applications to reduce errors and improve overall (3) care. WLAN management solutions provide a variety of other benefits can be substantial but difficult to measure. For example, they can protect corporate data by preventing (4) through rogue access points. They help control salary costs, by allowing IT staffs to manage larger networks without adding staff. And they can improve overall network management by integrating with customers’ existing systems, such as Open View and UniCenter. Fortunately, it isn’t necessary to measure these benefits to justify investing in WLAN management solutions, which can quickly pay for themselves simply by minimizing time-consuming (5) and administrative chores. 2()
A. personnel
B. expenses
C. overhead
D. hardware