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系统规划与管理师每日一练试题内容（2019/7/16）

试题1： （ ）是类元之间的语义关系，其中的一个类元指定了由另一个类元保证执行的契约。
A．依赖关系
B．关联关系
C．泛化关系
D．实现关系
试题解析与讨论：www.cnitpm.com/st/3086118251.html
试题参考答案：D

试题2： 系统评价就是对系统运行一段时间后的（）及经济效益等方面的评价。
A．社会效益
B．技术性能
C．管理效益
D．成本效益试题解析与讨论：www.cnitpm.com/st/3087624600.html
试题参考答案：B

试题3： 系统性能评价指标中，MIPS这一性能指标的含义（）。
A．每秒百万次指令
B．每秒百万次浮点运算
C．每秒数据报文
D．位每秒试题解析与讨论：www.cnitpm.com/st/3096625209.html
试题参考答案：A

试题4： 企业信息化建设需要大量的资金投入，成本支出项目多且数额大。在企业信息化建设成本支出项目中，系统切换费用属于（ ）
A．设备购置费用
B．设施费用
C．开发费用
D．系统运行维护费用
试题解析与讨论：www.cnitpm.com/st/3119024519.html
试题参考答案：D

试题5： 甲和乙从认证中心CA1获取了自己的证书1甲和1乙，丙从认证中心CA2获取了自己的证书1丙，下面说法中错误的是（ ）。
A.甲、乙可以直接使用自己的证书相互认证
B.甲与丙及乙与丙可以直接使用自己的证书相互认证
C.CA1和CA2可以通过交换各自公钥相互认证
D.证书1甲、1乙和1丙中存放的是各自的公钥
试题解析与讨论：www.cnitpm.com/st/3582710092.html
试题参考答案：B

试题6： （）是在一定成本控制下，为保障IT服务的性能和可靠性，服务供方与客户间定义的一种双方认可的协定。
A、服务级别协议（SLA）
B、服务级别管理（SLM）
C、运营级别协议（OLA）
D、支持合同（UC）
试题解析与讨论：www.cnitpm.com/st/38790873.html
试题参考答案：A

试题7： IT资源管理就是洞察所有的IT资产，并进行有效管理。IT资产管理的目的之一是为所有内外部资源提供广泛的  发现和性能分析功能，实现资源的（）
A.成本管控核拨
B.工具分类及应用
C.合理使用和重部署
D.回收及再生利用
试题解析与讨论：www.cnitpm.com/st/401048053.html
试题参考答案：C

试题8： The purpose of a programming system is to make a computer easy to use. To do this, it furnishes languages and various facilities that are in fact programs invoked and controlled by language features. But these facilities are bought at a price: the external description of a programming system is ten to twenty times as large as the external description of the computer system itself. The user finds it far easier to specify any particular function, but there are far more to choose from, and far more options and formats to remember.
Ease of use is enhanced only if the time gained in functional specification exceeds the time lost in learning, remembering, and searching manuals. With modern programming systems this gain does exceed the cost, but in recent years the ratio of fain to cost seems to have fallen as more and more complex(71 ) have been added.
Because ease of use is the purpose, this radio of function to conceptual complexity is the ultimate test of system design. Neither function alone nor simplicity alone( 72) a good design.
This point is widely misunderstood. Function, and not simplicity, has always been the measure of excellence for its designers. As soon as ease of use is held up as the criterion, each of these is seen to be(73 ) , reaching for only half of the true goal.
For a given level of function, however, that system is best in which one can specify things with the most simplicity and straightforwardness. (74 ) is not enough. Mooer’s TRAC language and Algol 68 achieve simplicity as measured by the number of distinct elementary concepts.
They are not, however, straightforward. The expression of the things one wants to do often requires involuted (复杂的）and unexpected combinations of the basic facilities. It is not enough to learn the elements and rules of combination; one must also learn the idiomatic usage, a whole lore of how the elements are combined in practice. Simplicity and straightforwardness proceed from conceptual(75 ) . Every part must reflect the same philosophies and the same balancing of desiderata. Every part must use the same techniques in syntax and the analogous notions in semantics. Ease of use, then, dictates unity of design, conceptual integrity.
71A.systems
B.functions
C.programs
D.manuals
72A.defines
B.canbe
C.constructs
D.costs
73A.stabilize
B.equalized
C.unbalanced
D.balanced
74A.Function
B.System
C.Straightforwardness
D.Simplicity
75A.integrity
B.isolation
C.durability
D.consistency

试题解析与讨论：www.cnitpm.com/st/4011929149.html
试题参考答案：B、B、A、C、A

试题9： 计算机程序的三种基本控制结构是顺序、选择和()。
A.循环
B.递归
C.函数调用
D.动态绑定
试题解析与讨论：www.cnitpm.com/st/4018524978.html
试题参考答案：A

试题10： 一个虚拟局域网是一个（）。
A.广播城
B.冲突域
C.组播域
D.物理上隔离的区域
试题解析与讨论：www.cnitpm.com/st/4021514838.html
试题参考答案：A