基于云计算的B／S模式网络考试防作弊系统的研究与实现

摘要

针对计算机网络考试时考生可能出现的各种违规行为，本文从限制”非考试软件”的执行，IE 内容审查，powershell 远程功能调用 C＃写入注册表和考后日志分析、hash 检测重复操作题等方面做了一些探索；并根据防作弊需求，把这些技术引入 B /S 架构的网络考试系统的设计中，最后论述了关键模块的实现。实际应用结果表明，系统能有效地限制考生的违规违纪行为，保证了考试的公平性。%Based on the violations arising from computer network examination candidates,the paper presents some explora-tion from such aspects as "non test software"implementation,examination of the contents of IE,PowerShell remote func-tion calls C#to write to the registry and the analysis after the test log,hash detection of repetitive operations;and according to the requirements of the design of anti cheating,the paper introduces these techniques into the network examination sys-tem based on B/S architecture,therefore discusses the realization of the key modules.The practical results show that,sys-tem can effectively limit the examinee violations,to ensure the fairness of the examination.