Cloud computing provides several services such as Software-as-a-Service (SaaS), Platform-as-a-Service (PaaS), and Infrastructure-as-a-Service (IaaS). Answer the following questions.1. Discuss how “Dropbox” application can represent an example of SaaS. (30 points)2. Explain how “Google App Engine” application can represent an example of PaaS. (30 points)3. Explain how “Microsoft Azure” services can represent an example of IaaS. (40 points)