Therefore, providers must maintain a reliable allocating mechanism in order to satisfy the cloud users’ requirements, while stabilizing an appropriate profit margin for themselves.Due to the increasingly high use of the Internet, and thereby cloud services, the typically static allocation and management of resources have become impractical, and the development of dynamic mechanisms have become more appropriate and worth studying. Nonetheless, even these dynamic mechanisms present issues and challenges to be overcome andsolutions to be found. Many researchers have tried, and are still trying, to provide the optimal solutions for the resource allocation and management problem in cloud computing environments. In this paper, we did categorize the existed solutions of resource allocation problem and compare them in each category. Recently, the Internet of Things (IoT) concept has attracted a lot of attention due to its capability to translate our physical world into a digital cyber world with meaningful information. The IoT devices are smaller in size, sheer in number, contain less memory, use less energy, and have more computational capabilities.