单选题One tool that is useful during both analysis and design is the ______, which is a pictorial representation of the items of information(entities) within the system and the relationships between these pieces of information. A. data dictionary B. dataflow diagram C. use case diagram D. entity-relationship diagram
单选题在Windows 2000Server系统下,从计算机的2个硬盘中各拿出100MB空间形成RAID-1卷,并分配盘符D,那么D盘空间为______。 A.200MB B.300MB C.250MB D.100MB
单选题质量体系文件通常由三部分组成,包括质量手册、 (80) 和作业指导书。质量体系文件的特性不包括 (81) 。
单选题设备开箱检查,应检查______各项并做好记录。 ①箱号、箱数及包装情况 ②设备的名称、型号和规格 ③设备的技术文件、资料及专用工具 ④设备有无缺损件、表面有无损坏和锈蚀等 ⑤设备性能、参数等 A.①②③④⑤ B.①②③④ C.②③④⑤ D.①③④⑤
单选题应用面向对象的软件开发方法进行分析和设计时,首先要定义好各种______。 A.类 B.对象 C.消息 D.操作
单选题监理合同是指委托人与监理单位就委托的工程项目管理内容签订的明确双方权利和义务的协议。 (52) 不属于监理单位的义务或职责, (53) 不属于监理单位的权利。
单选题为了改善系统硬件环境和运行环境而产生的系统更新换代需求所导致的软件维护属于______维护。
单选题以下有关变更控制方面的描述,不正确的是______。
单选题______使用文字、图形、图像、动画和声音等多种媒体来表示内容,并且使用超级链接来组织这些媒体。 A.多媒体压缩技术 B.多媒体存储技术 C.超文本技术 D.超媒体技术
单选题由我国信息产业部批准发布,在信息产业部门范围内统一使用的标准,称为______。 A.地方标准 B.部门标准 C.行业标准 D.企业标准
单选题信息系统安全管理体系中,数据安全的目标不包括______。
单选题Certificates are ______documents attesting to the ______ of a public key to an individual or other entity. They allow verification of the claim that a given publickey does in fact belong to a given individual. Certificates help prevent some one from using a phony key to ______someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a certificate also contains an ______ date, the name of the CA that issued the certificate, a serial number, and perhaps other information. Most importantly, it contains the digital ______ of the certificate issuer. The most widely accepted format for certificates is X.509 , thus, Certificates can be read or written by any application complying with X.509.
单选题项目监理实施过程中使用的监理工具和设施通常在______中加以说明。
单选题______ Development is a structured design methodology that proceeds in a sequence from one phase to the next. A. Waterfall B. Phased C. Prototyping D. Parallel
单选题某企业要求计算机机房内开机时温度、湿度应满足A级标准。按照该标准,夏天开机时对机房内的温度要求是 (68) ,相对湿度要求是 (69) 。
单选题监理机构为执行监理任务所需的工程资料,应由______。
单选题MIDI enables people to use ______ computers and electronic musical instruments. There are actually three components to MIDI, the communications " ______", the Hardware Interface and a distribution ______ called "Standard MIDI Files". In the context of the WWW, the most interesting component is the ______ Format. In principle, MIDI files contain sequences of MIDI Protocol messages. However, when MIDI Protocol ______ are stored in MIDI files, the events are also time-stamped for playback in the proper sequence. Music delivered by MIDI files is the most common use of MIDI today.
单选题计算机系统______的提高,不利于提高系统的可移植性。 A.效率 B.可维护性 C.可靠性 D.可用性
单选题UNIX中,用来把一个进程的输出连接到另一个进程的输入的文件称为______。 A.普通文件 B.虚拟文件 C.管道文件 D.设备文件
单选题违约责任,是指当事人任何一方不履行合同义务或者履行合同义务不符合约定而应当承担的法律责任。下列不属于承担违约责任的形式的有______。
