The paper gives the brief idea of smart sensors, structure and its application. Smart sensor as compare to other sensors can sensor anything with the special computing devices connected with each other in sensor network. These smart sensors first convert the digital signals to analog signals and then communicate the message to the device. Now a days smart sensors are used almost everywhere around us but very few people know its working and future applications. So here is a small review on smart sensors. This paper will help you gain knowledge and its applications in daily life.

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Data has become a bigger challenge to handle in mobile networks, today. In case of mobile devices data needs to be processed in large amounts so insufficient space issues may occur in case of low hardware configurations. For this, cloud platform provides ease of migrating apps to various places without giving platform dependency, space issues and also giving better data processing on low hardware costs. But is highly susceptible to malware attacks and data loss due to various factors and in case of digital data forensics becomes a greater challenge. In this paper, we present an overview of MCC and digital forensics, focusing on its key aspects and significant forensic challenges faced by digital investigators in MCC. The purpose of this paper is to provide a comprehensive understanding about forensic research challenges and re-direct researchers towards new research areas.

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