A group of students has decided to start their own company, called Ztech, which specializes in providing cloud computing services for the public. These services will be based on Iaas and Saas models and aim for higher Education students to use a wide range of tools and virtual labs that they may need during their studies. $1.$ Design a secure architecture for this Cloud Service Provider and support your answer with a clear explanation. $(10$ Marks$)2.$ Suggest any three Cloud services based on three different models with relevance to the given scenario. $(30$ Marks$)3.$ Implement one of the cloud services and provide a clear explanation of the steps. $(10$ Marks$)$