1. Compare and contrast three data encryption standards for WiMAX networks? [4 marks]
    2. How is the traffic coordinated in shared wireless medium? Explain additional methods to reduce collisions in shared wireless medium. [4 marks]
    3. Read the two recent research papers on the topic of Internet of Things (IoT) as saved in the resources folder; please give your critical reflection on the topic of Energy Harvest. [4 marks]


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