● The receiving activities conduct analyses of the requirements with therequirements provider to ensure that a compatible, shared understanding isreached on the meaning of the requirements. The result of this analysis and dialogis an （74） set of requirements.

● During the project, requirements change for a variety of reasons. As needs change and as work proceeds, additional requirements are derived and changes may have to be made to the existing requirements. It is essential to manage these additions and changes efficiently and effectively. To effectively analyze the impact of the changes, it is necessary that the source of each requirement is known and the rationale for any change is documented. The project manager may, however, want to track appropriate measures of requirements volatility to judge whether new or revised （75）are necessary.

● 某企业开发应用程序，要求调用传输层的安全协议保障应用通信的安全，下面可选的传输层安全协议是 （6） 。

● 在异步通信中，每个字符包含1位起始位、7位数据位、1位奇偶位和2位终止位，每秒钟传送100个字符，采用4相相位调制，则有效数据速率为 （7） 。

● 关于网络工程需求分析的论述，正确的是 （8） 。

● 对于校园网来说， （9） 。