The subject is cloud computing

Question 2 (a) Give ONE use case (scenario) of the following cloud delivery model: (1) IaaS [4 marks] (2) PaaS [4 marks] (3) SaaS [4 marks] (Note: You should NOT give a name of cloud service provider only. You should state who use the cloud computing service and how they use the service from the provider) (b) State ANY TWO disadvantages of adopting cloud computing approach. [4 marks] (c) Should the Service Level Agreement (SLA) contain network layer? Justify your answer. [4 marks]