Introducing TAMEx model for availability of e-exam in wireless environment

Abstract

Computer Base Test (CBT) or e-exam is often used to evaluate the achievement of learning process in e-learning system. E-exam services become more popular to be implemented by Massive Open Online Courses, TOEFL, IELTS etc. However, the security of e-exam is still debatable. Many researches related to e-exam security on the aspect of authority and confidentiality have been done. However, there are not many researches founded relate to availability aspect especially for implementation of e-exam in wireless environment. Here is introduced Time Adaptive for Mobile E-Exam (TAMEx) model. This model is designed for improving availability of e-exam which is implemented in wireless network especially in WLAN IEEE.802.11. This model deploys Netsh command to provide data of Wireless Local Area Network interfaces then integrate it with e-exam application. Here is used RSSI and received data rate to identify connection status of the client. In case of connection problem due to the RSSI or received data rate below the required standard, this model provides additional time automatically corresponding to duration of connection interruption to a certain user who has experienced of loss connection during the exam. Therefore, implementing TAMEx model in e-exam services should improve reliability of e-exam in wireless environment due to its availability, fairness and accountability.