试题1

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试题2

假设系统中有四类互斥资源 R1、R2、R3 和 R4，可用资源数分别为 9、6、3 和 3。在 T₀ 时刻系统中有 P1、P2、P3 和 P4 四个进程，这些进程对资源的最大需求量和已分配资源数如下表所示。在 T₀ 时刻系统剩余的可用资源数分别为（1）  。如果 P1、P2、P3和 P4 进程按  （2）  序列执行，那么系统状态是安全的。

（1）A、2、1、0 和 1
B、3、1、0 和 0
C、3、1、1 和 1
D、3、0、1 和 1
（2）A、P1→P2→P4→P3
B、P2→P1→P4→P3
C、P3→P4→P1→P2
D、P4→P2→P1→P3

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试题3

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试题4

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试题5

根据 ISO/IEC  9126 软件质量度量模型定义，一个软件的时间和资源质量子特性属于 （ ） 质量特性。
A、功能性
B、效率
C、可靠性
D、易使用性

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试题6

UP（统一过程）是用例驱动的、以架构为核心、迭代和增量的软件过程框架，它提供了一种  （ ）  的特性。
A、演进
B、敏捷
C、测试驱动
D、持续集成

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试题7

there is nothing in this world constant but inconstancy.-SWIFT
Project after project designs a set of algorithms and then plunges intoconstruction of customer-deliverable software on a schedule that demands delivery of the first thing built.
In most projects, the first system built is (1) usable. It may be too slow, too big , awkward to use, or all three. There is no (2 ) but to start again, smarting but smarter and build a redesigned version in which these problems are solved. The discard and (3) may be done in one lump, or it may be done piece-by-piece. But all large-system experience shows that it will be done. Where a new system concept or new technology is used, one has to build a syste m to throw away, for even the best
planning is not so omniscient (全知的) as to get it fight the first time.
the management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a (4).or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the (5) of agony (极大痛苦) for the user, distraction for the builders while they do the redesign, and a bad..reputation for the product that the best redesign will find hard to live down.
Henceplanto throw one away; you will,anyhow.
The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a throwaway, or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the cost of agony for the user, distraction for the builders while they do the redesign, and a bad reputation for the product that the best redesign will find hard to live down.
(1)A.almost
B.often
C.usually
D.barely
(2)A.alternative
B.need
C.possibility
D.solution
(3)A.design
B.redesign
C.plan
D.build
(4) A.throwaway
B.system
C.software
D.product
(5) A.worth
B. value
C. cost
D. invaluable

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试题8

以下关于解释程序和编译程序的叙述中，正确的是（）。
A．编译程序和解释程序都生成源程序的目标程序
B．编译程序和解释程序都不生成源程序的目标程序
C．编译程序生成源程序的目标程序，解释程序则不然
D．编译程序不生成源程序的目标程序，而解释程序反之

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试题9

操作系统是裸机上的第一层软件，其他系统软件（如（1）等）和应用软件都是建立在操作系统基础上的。下图①②③分别表示（2）

（1）A、编译程序、财务软件和数据库管理系统软件
B、汇编程序、编译程序和 Java 解释器
C、编译程序、数据库管理系统软件和汽车防盗程序
D、语言处理程序、办公管理软件和气象预报软件
（2）A、应用软件开发者、最终用户和系统软件开发者
B、应用软件开发者、系统软件开发者和最终用户
C、最终用户、系统软件开发者和应用软件开发者
D、最终用户、应用软件开发者和系统软件开发者

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试题10

将高级语言源程序翻译成机器语言程序的过程中，常引入中间代码。以下关于中间代码的叙述中，不正确的是 （）。
A．中间代码不依赖于具体的机器．
B．使用中间代码可提高编译程序的可移植性
C．中间代码可以用树或图表示
D．中间代码可以用栈和队列表示

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