The architecture framework design of dual cloud technology for C-learning

C-learning is an integration of the technology Combined with cloud computing, virtual desktop, multimedia network teaching, etc., C-learning provides informationized instruction with online education services with featured in great variety, constant access, capacity on demand, safety and reliability, quality and pricing competitiveness as well. In order to implement the C-Learning, we should build a cloud terminal network learning environment with low cost, low operation and maintenance, and low-power. After taking into account the construction costs and the effect, and the actual situation of cloud security and teaching resources on the cloud, in order to ensure the stability and reliability of the C-learning, we proposed using the framework of dual-cloud technology to build the C-learning environment, in support of dual-server protection mechanism and virtual desktop technical technology.