计算机辅助测验中基于消息监控与包过滤技术的监考方法  

Invigilation Plan Based on the Message Surveillance and Package Filtration Technique

作　　者：张新林[1] 

机构地区：[1]罗定职业技术学院,罗定527200

出　　处：《计算机科学》2008年第3期289-291,共3页Computer Science

摘　　要：在机考试时,为防止考生利用计算机作弊,针对考生启动非法程序获取资料的情况,使用钩子函数对系统和进程监控,捕捉到非法程序在创建、激活之时即予以强制关闭。本文针对利用网络进行信息传递的情况,使用包过滤技术,把不属于本机与考试服务器间通信的非法数据包进行过滤。对所有作弊行为警告,收集作弊证据并传送到服务器,实现了人工监考所不能达到的目的。还给出了具体实现的关键代码。Based of computer cheating methods and aiming to the acquirement of the information by illegal program, the lawfulless program can be captured and closed forcibly when it is created and activated with the surveillance of system and process by hook function. In virtue of network information transferring , the illegal data package which doesn＇t be-long to the exchange between the local computer and the exam server are supposed to be cancelled by package filtration technique. The invigilation plan will warn all the cheating examees, collect the cheating evidences, transfer them to the server and achieve the goal that mannul invigilation can＇t have. As the same time, the key specific codes are given in the text.

关 键 词：计算机辅助测验 监控 钩子函数 包过滤 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术] TP391.72[自动化与计算机技术—计算机科学与技术]