单选
●The purpose of the requirements definition ph
- ase is to produce a clear，complete，consistent，and testa
- ble (66) of the te
- chnical requirements for the software pro
- duct．
- During the requirements definition phase，the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform. and each
- In either case，the requirements definition team formulates an overall concept for the system and the defines (69) showing how the system will be operated，publishes the system and operation concept documents，and conducts a system concept review(S
- Following the SCR，the team derives (70) requirements for the system from the highlevel requirements and the system operations concept．Using structured or object-oriented analysis,the team specifies the software functions and algorithms nee
- B．definition
- C．specification
- D．statement (67) A．criterion
- B．standard
- C．model
- D．system (68) A．producer
- B．customer
- C．programmer
- D．analyser (69) A．rules
- B．principles
- C．scenarios
- D．scenes (70) A．detailed
- B．outlined
- C．total
- D．complete
相关试题
-
●Flow control is
- a function that prevents network congestion
- by ensuring that (71) do not overwhelm (72) with datA．There are three
- commonly use
- d methods for handling network congestion ． (73) is used by network devices to temporarily store bursts of excess data in memory until they can be processed． (74) are used by receiving devices to help prevent their buffers from o
- B．transmitted devices
- C．receiving devices
- D．received devices (73)~(75) A．Buffer
- B．Source-quench messages
- C．Buffering
- D．Windowing
-
●在NetW
- are网络中，客户需要访问某个类型的服务器时，首先要发送一个&n
- bsp;(65) 广播报文来寻找服务器。 (65) A．Rip
- B．Sap
- C．gns
- D．arp
-
●The purpose of the requirements definition ph
- ase is to produce a clear，complete，consistent，and testa
- ble (66) of the te
- chnical requirements for the software pro
- duct．
- During the requirements definition phase，the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform. and each
- In either case，the requirements definition team formulates an overall concept for the system and the defines (69) showing how the system will be operated，publishes the system and operation concept documents，and conducts a system concept review(S
- Following the SCR，the team derives (70) requirements for the system from the highlevel requirements and the system operations concept．Using structured or object-oriented analysis,the team specifies the software functions and algorithms nee
- B．definition
- C．specification
- D．statement (67) A．criterion
-
●SNMPv3把对网络协议的安全威胁分为 (64) 两类。
(64)
- A．修改信息和修改报文流IP层 &n
- bsp; B．消息泄露和修改报文流
- C．非法窃取和盗用
- D．主要和次要
-
●若用ping命令来测试本机是否安装了TCP／IP协议，则正确的命令是 (58) 。
(58)
- A．ping 127．0．0．0 &n
- bsp; B．ping 127．0．0．1
- C．ping 127．0．1．1
- D．ping 127．1．1．1
-
●配置 WWW 服务器是 UNIX 操作系统平台的重要工作之一，而
- Apache 是目前应用最为广泛的 We
- b 服务器产品之一， (59) 是 Apa
- che 的主要配置文件。 URL 根目录与服务器本地目录之间的映射关系是通过指令 (60) 设定；指令 ServerA
- dmin 的作用是 (61) ;而设置 index.html 或 default.html 为目录下默认文档的指令是 (62) ；如果允许以"http://www.xxx.edu.cn/~username"方式访问用户的个人主页，必须通过 (63) 指令设置个人主页文档所在的目录。 (59) A．http
- D．conf
- B．srm.conf
- C．access.conf
- D．apache.conf (60) A．WWWRoot
- B．ServerRoot
- C．ApacheRoot
-
●基于Web的客户／服务器应用模式飞速发展的原因是 (57) 。
(57)
- A．网络规模越来越大 &n
- bsp; B．网络信息量越来越大
- C．浏览器成为跨平台、通用的信息检索工具
- D．网速得到大幅度提高
-
●在使用路由器R的TCP／IP网络中，两主机通过一路由器互联，提供主机
- A和主机
- B应用层之间通信的层是 (52) ，提供机器之间通信的层是 (53) ，具有IP层和网络接口层的设备 (54) ；在A与R和R与B使用不同物理网络的情况下，主机A和路由器R之间传送的数据帧与路由器R和主机B之间传送的数据帧 (55) ，A与R之间传送的IP数据报和R与B之间传送的IP数据报 (56) (52) A．应用层
- B．传输层
- C．IP层
- D．网络接口层 (53) A．应用层
- B．传输层
- C．IP层
- D．网络接口层 (54) A．包括主机A、B和路由器R
- B．仅有主机A、B
- C．仅有路由器R
-
●安全的威胁可分为两大类，即主动攻击和被动攻击。通过截取以前的合法记录稍后重新加入一个连接，叫做重放攻击。为防止这种情况，可以采用的办法是 (50) 。一个计算机系统被认为是可信任的，主要从其受保护的程度而言的，Windows NT 4．0 以上版本目前具有的安全等级是 (51) 。
(50)
- A．加入时间戳 &n
- bsp; B．加密
- C．认证
- D．使用密钥 (51) A．D级
- B．C1级
- C．C2级
- D．B级
-
电子商务交易必须具备抗抵赖性，目的在于防止 () 。
- A.一个实体假装成另一个实体
- B.参与此交易的一方否认曾经发生过此次交易
- C.他人对数据进行非授权的修改、破坏
- D.信息从被监视的通信过程中泄漏出去
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