计算机系统分析师高级试题及答案,2013年计算机软考系统分析师试题及答案1

最新推荐文章于 2022-10-30 21:03:31 发布

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最新推荐文章于 2022-10-30 21:03:31 发布

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文章标签：计算机系统分析师高级试题及答案

随着开放系统互连（OSI）模型的引入，不同类型的计算机之间的通信成为可能，即使它们使用不同的编程语言和通信接口。早期，如IBM的SNA和DEC的DNA这样的专有软件包允许相同制造商的系统间连接。然而，OSI在1970年代末提出的一个参考模型旨在解决通用互连问题，协调标准发展，推动开放式系统互联。

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●设∫x0f(t2)=2x3,则∫10f(x)=(1)。

(1)

A．1

B．2

C．3

D．4

●过原点做曲线y=ex的切线，则切线的方程为(2)。

(2)

A．y=ex

B．y=ex

C．y=x

D．y=ex/2

●lim(sin3x/tg2x)=(3)。

x→0

(3)

A．3

B．3/2

C．2

D．1

●命题公式￢(P∨Q)←→(P∧Q)的合取范式为(4)，析取范式为(5)。

(4)

A．(P∨Q)∧(￢P∨￢Q)

B．(P∨￢Q)∧(￢P∨￢Q)

C．(￢P∨Q)∧(P∨￢Q)

D．(P∨Q)∧(￢P∨Q)

(5)

A．(P∧Q)∨(￢P∧Q)

B．(￢P∧￢Q)∨(￢P∧Q)

C．(P∧￢Q)∨(￢P∧Q)

D．(P∧￢Q)∨(P∧Q)

●In the following essay, each bland has four choices. Choose the best answer and write down on the answer sheet. With the implementation of (6) the so – called network has become a reality. The provision of such facilities is the most important part of the network requirements. However, in many applications the communicating computers may be of different types. This means that they may use different programming languages and, more importantly, different forms of (7) interface between user(application)program, normally referred to ,as application processes, and the underlying communication services may be (8). For example, one computer may be a small single-user computer, while another may be a large (9) system. In the earlier days of computer communication, these issues meant that only closed communities of computers (that is, from the same manufacturer) could communicate with each other in a meaningful way. IBM’s systems Network Architecture (SNA) and DEC’s Digital Network Architecture (DNA) are just two examples of communication software packages produced by manufacturers to allow their systems to be intercormected together. These proprietary packages, however, of which there am still many inexistence, do not address the problem of universal interconnect ability, or open systems interconnection. In an attempt to alleviate this problem,(10) ,in the late 1970s,formulated a reference model to provide a common basis (or the coordination of standards developments and to allow existing and evolving standards activities to be placed into perspective with one another.

(6)

A.communicationchannel

B.protocols

C.datachannel

D.publiccommunication

(7)

A.database

B.datarepresentation

C.protocols

D.datacommunication

(8)

A.same