Developing reliable software on time and within(1)...

第1题

选出应填入下面一段英语中______内的正确答案。

Developing reliable software on time and within(1)represents a difficult endeavor for many organizations.

Usually business solutions have three main aspects: people,(2), and technology. The main reason for failing software projects has little to do with technology and tools, and much to do with lack ofprocess(3). Experience has shown that introducing new technology and tools in an immature or undisciplined environment is likely to increase the chaos. CASE tools are not enough."Afool with a tool is still a fool!"

Structured method was the first wave of the software industry. This was the beginning of transforming software development from a "(4)industry" to mass production. Software process movement is the second wave in the software industry. The process maturity movement prepares the way for the third wave of the software industry:‘‘software industrialization”. Software development will become like an assembly and manufacturing process.A critical enabling factor is a disciplined software engineering process with predictable quality,(5)and functionality.

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第2题

___________ is a discipline whose aim is the production of fault-free software, delivered on time and within budget, that satisfies the client's needs.

A、Software engineering

B、Software process

C、Software

D、Software testing

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第3题

prior to the UML, there was no clear leading(1)language. Users had to choose from among many similar modeling languages with minor differences in overall(2)power. Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages. This lack of(3)discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling. Users longed for the industry to adopt one,or a very few, broadly supported modeling languages suitable for(4)usage.Some vendors were discouraged from entering the OO modeling area because of the need to support many similar, but slightly different, modeling languages. In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many different(5)modeling tools. It is important to the entire OO industry to encourage broadly based tools and vendors, as well as niche products that cater to the needs of specialized groups.

A．programming

B．modeling

C．formal

D．intelligent

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第4题

To compete in today's fast-paced competitive environment, organizations are increasingly allowing contractors, partners, visitors and guests to access their internal enterprise network. These users may connect to the network through wired ports in conference rooms or offices, or via wireless access points. In allowing this open access for third parties, LANs become(71). Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to(72) activity. For many organizations, however, the operational complexity and costs to ensure safe third party network access has been prohibitive. Fifty-two percent of surveyed CISOs stated that they currently use a moat and castle" security approach, and admit that defenses inside the perimeter are weak. Threats from internal users are also increasingly a cause for security concerns. Employees with malicious intent can launch(73) of service attacks or steal(74) information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with(75) and worms acquired from unprotected public networks. Hackers masquerading as internal users can take advantage of weak internal security to gain access to confidential information.

A．damageable

B．susceptible

C．vulnerable

D．changeable

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第5题

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(66) to improve their efficiency and reduce(67). 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(68) 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(69) 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(70)and administrative chores.

A．chores

B．chains

C．changes

D．links

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第6题

A．sickness

B．disease

C．viruses

D．germina

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第7题

关系R(A，B，C，D)和S(B，C，D)进行笛卡尔运算，其结果集为(40)元关系。三个实体及它们之间的多对多联系至少应转换成(41)个关系模式。

A．4

B．3

C．6

D．7

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第8题

为了直观地分析系统的动作，从特定的视点出发描述系统的行为，需要采用动态分析的方法。其中(29)本来是表达异步系统的控制规则的图形表示方法，现在已经广泛地应用于硬件与软件系统的开发中，它适用于描述与分析相互独立、协同操作的处理系统，也就是并发执行的处理系统。(30)是描述系统的状态如何响应外部的信号进行推移的一种图形表示。

A．状态迁移图

B．时序图

C．Petri网

D．数据流图

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第9题

假设普通音频电话线路支持的频率范围为300～3300Hz，信噪比为30dB，则该线路的带宽B是(35)Hz，根据信息论原理，工作在该线路上的调制解调器最高速率V约为(36)Kbps(注：V=B*log2((S/N)+1)，S是信号强度，N是噪声强度)。

A．300

B．600

C．3000

D．3300

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第10题

A．使原本由于接口不兼容而不能一起工作的那些类可以一起工作

B．将一个请求封装为一个对象，从而可用不同的请求对客户进行参数化，将请求排队或记录请求日志，支持可撤销的操作

C．定义对象间的一种一对多的依赖关系，当一个对象的状态发生改变时，所有依赖于它的对象都得到通知并被自动更新

D．使算法可独立于使用它的客户而变化

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Developing reliable software on time and within（1)represents a difficult endeavor for many