基于Internet的网络考试系统带来了一系列的安全问题,诸如容错能力、容灾能力(突然断电等)、数据传输与存储的保密、考试身份认证等综合问题。本文从网络考试系统的体系结构、数据加密、身份认证以及防火墙等方面出发对上述考试系统中的安全性问题进行了初步的研究。 Internet-based network examination system has brought a series of security problems, such as fault tolerance, disaster recovery capability (sudden power failure, etc.), data transmission and storage security, exam certification and other comprehensive issues. This article has carried on the preliminary research to the security problems in the above examination system from the network examination system architecture, the data encryption, the authentication as well as the firewall and so on.